Skocz do pozycji: 1.

Tytuł:

Species conversion of spruce stands in the Wisła Forest District

Autorzy:

Skrzyszewski, J
Skrzyszewska, K.

Powiązania:

https://bibliotekanauki.pl/articles/41743.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Wisla Forest District
spruce
Picea abies
Istebna spruce
seed stand
spruce stand
forest tree
species conversion

Opis:

The paper provides some guidelines on the choice of the target species compositions for plantations that would replace monocultural spruce stands growing on the sites of the Silesian Beskid Mts. Part of the guidelines relates to the rules governing the sequence in which the monocultures will be converted into mixed stands. It is suggested that those rules should be combined with the principles of the establishment of progenyplantations. The seed stands of the Istebna spruce are experimentally divided into four categories according to their abilityto perform the function of a seed stand. The following features of the stands are analysed: vitality, density, stage of regeneration, protective and cultural functions. The paper contains also an outline of the methods of species conversion and the relevant references.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:

Induction of somatic embryogenesis in spruce: Picea omorika, P. pungens "Glauca", P. breweriana and P. abies

Autorzy:

Hazubska, T
Szczygiel, K.

Powiązania:

https://bibliotekanauki.pl/articles/41201.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea pungens
Serbian spruce
Picea abies
blue spruce
Picea omorika
clonal propagation
spruce
somatic embryogenesis
maturation
embryogenesis
Picea breweriana
somatic embryo

Opis:

The studies were carried out on seed explants (mature zygotic embryos) of four spruce species: Picea omorika (Pancić) Purk., P. pungens ‘Glauca' Beisnn., P. breweriana S. Watson and P. abies (L.) Karst. The explants required darkness during the induction of embryogenic tissue. Temporary exposure of explants to light did not increase their embryogenic capacity. It was observed that the temperature of 25°C was the optimal for embryogenic tissue induction from mature zygotic embryos of Picea omorika. Cold treatment at 4°C during one week improved embryogenic tissue initiation in the explants of P. pungens ‘Glauca'. Seed explants of Picea omorika produced embryogenic tissue on medium lacking glutamine. Only explants of Picea abies and P. omorika showed embryogenic tissue formation. For effective proliferation of embryogenic tissue in Picea abies and P. omorika it was necessary to supply the medium with 2,4-D (4.5-9 μM) and BA (2.25 μM). Two of three analized lines showed that ABA promote somatic embryo maturation, at the ABA concentration 20 μM in the medium.

Źródło:

Dendrobiology; 2003, 50
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Stimulation of somatic embryo growth and development in Picea spp. by polyethylene glycol

Autorzy:

Hazubska-Przybył, Teresa
Wawrzyniak, Mikołaj

Powiązania:

https://bibliotekanauki.pl/articles/956841.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

somatic embryogenesis
osmotic stress
germination
norway spruce
serbian spruce

Opis:

The objective of the presented study was to compare the effect of osmotic stress, induced by various concentrations of polyethylene glycol (PEG) MW 4000, on the development, maturation, and conversion of somatic embryos of Picea abies (model species) and P. omorika (endemic species) into somatic seedlings. Embryogenic tissue (ET) of P. abies (line A and B) and P. omorika were incubated on a maturation medium with 20 μM abscisic acid (ABA), 1 μM indole-3-butyric acid (IBA) and PEG 4000 at 0, 5, and 7.5%. After 5 weeks, the number of somatic embryos produced, and the number of cotyledonary somatic embryos per 1 gram of ET, was assessed. Cotyledonary somatic embryos were selected and transferred to a Margara germination medium for two months. Their growth, as measured by hypocotyl and radicle length, was evaluated after one month, and the somatic embryos were transferred to fresh medium. After the second month of incubation, the conversion frequency of germinated embryos into the seedlings was assessed. In general, ETs of both of the tested spruce species cultured on a maturation medium amended with 5% PEG 4000 exhibited a tendency to produce a higher total number of embryos, as well as a higher number of cotyledonary embryos. The B line of P. abies produced a significantly greater number of cotyledonary embryos, relative to the control (no PEG). PEG only stimulated hypocotyl growth in embryos of both lines (A and B) of P. abies during the germination stage. Somatic embryos of Picea omorika were characterized by poor growth of both hypocotyls and radicles, irrespective of PEG treatment. The addition of PEG 4000 to the maturation medium did not improve the conversion frequency of germinated somatic embryos into somatic seedlings in either spruce species after a month of incubation on Margara medium. The effect of PEG 4000 on somatic embryogenesis efficiency was more evident in the ET of the two P. abies lines, relative to the P. omorika ET line, during both the maturation and the germination stage. Results indicated that the P. omorika ET line was almost completely insensitive to all of the PEG concentrations tested.

Źródło:

Dendrobiology; 2017, 78; 168-178
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:

Population parameters as an andicator of susceptibility of ornamental coniferous plants to spruce spider mite

Autorzy:

Czajkowska, B.
Kielkiewicz, M.
Puchalska, E.

Powiązania:

https://bibliotekanauki.pl/articles/65565.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

cypress
Oligonychus ununguis
conifer
susceptibility
resistance
ornamental plant
spruce
population parameter
spruce spider mite

Źródło:

Journal of Plant Protection Research; 2003, 43, 2
1427-4345

Pojawia się w:

Journal of Plant Protection Research

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:

Different growth patterns of Picea schrenkiana subsp. tianshanica (Rupr.) Bykov and Juglans regia L. coexisting under the same ecological conditions in the Sary-Chelek Biosphere Reserve in Kyrgyzstan

Autorzy:

Magnuszewski, M.
Bijak, S.
Orozumbekow, A.
Howe, B.
Musuraliev, K.
Zasada, M.
Bronisz, K.
Bronisz, A.

Powiązania:

https://bibliotekanauki.pl/articles/40986.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

dendroecology
growth pattern
Picea schrenkiana ssp.tianshanica
Schrenk spruce
Asian spruce zob.Schrenk spruce
Juglans regia
coexistence
ecological condition
Sary-Chelek Biosphere Reserve
Kirgizstan

Opis:

The main aim of the study was to compare the radial growth of Persian walnut and Schrenk spruce trees growing under the same ecological conditions in the Sary-Chelek range of the Tien-Shan Mountains, as well as to analyse the response of these species to the selected climate factors in line with the altitude gradient. Four study plots were established at the altitude of 1350, 1400, 1450 and 1500 m a.s.l. Results indicated that (1) walnut and spruce in the Sary-Chelek Biosphere Reserve have different patterns of radial increment and reaction to climate factors, despite growing in the same habitat, (2) spruce radial growth responded to low precipitation and low temperature during the April to September period of the previous year; (3) walnut radial increment patterns varied significantly with changes in altitude, whereas spruce patterns did not; and (4) walnut radial increment patterns responded positively to high temperature during contemporary growing season and to precipitation during the prior growing season. In addition, it was noted that precipitation during the contemporary growing season could negatively influence growth.

Źródło:

Dendrobiology; 2015, 73
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:

Fungi occurring on Colorado blue spruce (Picea pungens Engelm.) in the Cracow Botanic Garden
Grzyby występujące na świerku kłującym (Picea pungens Engelm.) w Krakowskim Ogrodzie Botanicznym

Autorzy:

Bartyńska, M.
Mirski, W.

Powiązania:

https://bibliotekanauki.pl/articles/11364510.pdf

Data publikacji:

2005

Wydawca:

Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie

Tematy:

disease symptom
park collection
fungi
Krakow city
Botanical Garden in Krakow
Picea pungens
Colorado blue spruce zob.blue spruce
fungal disease
blue spruce
occurrence

Opis:

The aim of the study was to determine the causes of dying down of sprout and needles of Colorado blue spruce (Picea pungens Engelm.) and its cultivar ‘Glauca’ in the park collection of the Botanic Garden of Jagiellonian University in Cracow. For several years, the disease symptoms described in the article have led to the loss of decorative values of these trees. The study was conducted in the years 2002 and 2003 by means of the control of plant healthfulness, phytopathological diagnostics, isolation of microorganisms from tissues exhibiting diseases symptoms, as well as the culture and identification of the isolated fungi. Both, the control of tree healthfulness, and specialized laboratory techniques proved that the symptoms diagnosed in plants had an infectious character, and that the fungi might be the main causing agents. The analysis of the fungal populations isolated from the affected tissues indicates the combined occurrence of fungi in tissues of the studied plants and the domination of the following species: Alternaria consortiale, Aureobasidium pullulans, Penicillium canescens, Phoma pomorum, Ulocladium consortiale, Zythiostroma pinastri.
Badania miały na celu określenie przyczyn zamierania pędów i igieł świerka kłującego (Picea pungens Engelm.) i jego odmiany ‘Glauca’ w nasadzeniach stałych w kolekcji Ogrodu Botanicznego UJ w Krakowie. Wymienione objawy chorobowe przyczyniały się już od kilku lat do utraty walorów dekoracyjnych u tych drzew. W latach 2002 i 2003 przeprowadzono badania w oparciu o ocenę zdrowotności roślin, diagnostykę fitopatologiczną, wyosobnienie mikroorganizmów z tkanek z objawami chorobowymi oraz hodowlę i identyfikację wyosobnionych grzybów. Zarówno określanie zdrowotności drzew jak i specjalne techniki laboratoryjne dowiodły, że zdiagnozowane u roślin objawy mają charakter infekcyjny, a grzyby mogą być ich głównymi sprawcami. Analiza populacji grzybów wyosobnionych z chorych tkanek wskazała na ich kompleksowe występowanie w tkankach badanych roślin, jak też na dominację takich gatunków jak Alternaria consortiale, Aureobasidium pullulans, Penicillium canescens, Phoma pomorum, Ulocladium consortiale, Zythiostroma pinastri.

Źródło:

Acta Scientiarum Polonorum. Hortorum Cultus; 2005, 04, 2; 27-37
1644-0692

Pojawia się w:

Acta Scientiarum Polonorum. Hortorum Cultus

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:

Forest dieback process in the Polish mountains in the past and nowadays - literature review on selected topics

Autorzy:

Bałazy, Radomir

Powiązania:

https://bibliotekanauki.pl/articles/2041512.pdf

Data publikacji:

2020

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

deforestation
spruce
forests
Sudety
Beskidy

Opis:

Mountain forests constitute one of the most diverse ecosystems, not only in Europe but also all over the world. Mountain ranges, which frequently encompass multiple countries, constitute a unique link between various natural areas, which are very often completely different from the historical point, or which are characterized by different use and management types. Although the role of mountain forests is relatively well recognized nowadays, in the distant past, these areas were poorly penetrated, mainly due to the unfavourable climate and natural topography, which discouraged not only from settling down but also from moving around. Despite the fact that mountains had been the object of interest of mining, weaving, and glassmaking industries for hundreds of years, dramatic changes in the stands in these areas were sealed by the industrial revolution in the 18th and 19th centuries. The purpose of this paper is the analysis of forest dieback process in the mountain ranges of Sudetes and Western Carpathians placed in Poland. Stress factors have been divided into three main groups, however, it should be remembered that it is a very simplified division and some factors could be partially found in the anthropogenic, as well as biotic, and even abiotic factor groups. Neither the beginning nor the end of deforestation process was defined precisely in the study, which was deliberate in taking into account constant changes in the ecosystems. Generally, three periods may be distinguished here, regarding the spruce forests dieback process. Typically anthropogenic deforestation, caused by the industrialization of the areas during the industrial revolution and earlier, deforestation in the years 1970–1980 and partially before the year 2000 (Western Carpathians) caused by a set of various stress factors and the latest period, that is, generally understood climate change. The last several years have particularly contributed to the expansion of detailed knowledge about the dependencies and the influence of abiotic, biotic, and anthropogenic factors on the health condition of spruce trees. Although models have already been developed, which describe the course of insect outbreaks, the growth and health condition of spruces, or climate factors, no model has been developed so far that would allow to depict the process of hitherto deforestation, and to enable modelling the forthcoming changes. It seems that the development of such tool, not only from the forest management point of view, would constitute a milestone on the way to precision forestry.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 3; 184-198
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:

Comparative evaluation of preservation and growth of spruce climatypes based on long-term provenance trials in Russia

Autorzy:

Nikolaeva, M.A.
Faizulin, D,K,
Potokin, A.P.
Jamaleev, O.A.

Powiązania:

https://bibliotekanauki.pl/articles/38408.pdf

Data publikacji:

2014

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

comparative evaluation
preservation
plant growth
growth parameter
spruce
Norway spruce
Picea abies
Siberian spruce
Picea obovata
climatype
long-term provenance trial
provenance trial
progeny
Russia

Opis:

The article presents the results of provenance trials carried on the Norway spruce (Picea abies (L.) Karst.), the Siberian spruce (Picea obovata Ledeb.) and hybrid forms of these two species. The trails were laid in 1977–1978 according to wide-scale All-Union program of 1972 year (Prokazin 1972) in the Arkhangelsk, Vologda, Leningrad regions and the Republic of Bashkortostan. The results of the most recent inventory of provenance trials as well as analyses of preservation and growth of spruce progenies with different geographical origin are presented. One of the main factors affecting spruce progeny survival was north-south distance between seed collection locality and test locality. At the time of the study (2010–2012), in the Vologda and Arkhangelsk regions, spruce progeny preservation was higher in the case of mother stands distant to the north. On the contrary, in the Leningrad region and the Republic of Bashkortostan, preservation of northern climatypes’ progenies was lower during the whole period of plantations’ growth. With the change of seed collection locality towards west-east direction, a correlation between progeny preservation and geographical origin factors was non-existent (Vologda, Arkhangelsk regions) or weak (Leningrad region, Republic of Bashkortostan). The most successful growth and the lowest preservation were observed under the conditions of sharp-continental climate, in provenance trials carried out in the Bashkortostan Republic. In the north of Russia, in provenance trials in the Arkhangelsk region there was observed the slowest spruce growth. On the whole, at all the objects under investigation, Norway spruce progenies and hybrid forms with Norway spruce properties showed better growth parameters when compared to those of the Siberian spruce.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2014, 56, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:

Świerk, drzewo proste
The Spruce, a Straight Tree

Autorzy:

Szcześniak, Krystyna

Powiązania:

https://bibliotekanauki.pl/articles/1045569.pdf

Data publikacji:

2013-01-01

Wydawca:

Uniwersytet im. Adama Mickiewicza w Poznaniu

Tematy:

Slavs
Balts
spruce
ethnolinguistics
beliefs
chants

Opis:

The article discusses the place of the spruce in Slavic and Baltic customs, folk medicine, chants, and superstitions. The research has demonstrated that the tree has many meanings in Slavic culture (it is treated there as a female tree, which is suggested by its name in East Slavic languages), and although it seems to be straight and simple (because it is the way it grows) it has turned out to be a liminal tree of borderlands, connecting life with death, and allowing for a reconciliation with inevitability of passing, facilitating the passage of a dead person’s soul to the other dimension of eternal life. The spruce combines the joy of wedding (because it is included in the wedding tree) with the threat of infertility (if it is planted too close to home). Additionally, it protects cattle from witches and evil spirits (for the first pasture outing, cattle was driven with a spruce twig, or a tree was laid before the building from which the animals were driven out). Its blades, twigs, and cones were widely used as designates in folk medicine chants, and for infusions, extracts, and ointments used externally and internally as medicines.

Źródło:

Poznańskie Studia Polonistyczne. Seria Językoznawcza; 2013, 20, 2; 183-193
1233-8672
2450-4939

Pojawia się w:

Poznańskie Studia Polonistyczne. Seria Językoznawcza

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:

Somaclonal variation during Picea abies and P. omorika somatic embryogenesis and cryopreservation

Autorzy:

Hazubska-Przybył, Teresa
Dering, Monika

Powiązania:

https://bibliotekanauki.pl/articles/952041.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

microsatellites
somaclonal variations
somatic embryogenesis
spruce

Opis:

Embryogenic cultures of plants are exposed to various stress factors both in vitro and during cryostorage. In order to safely include the plant material obtained by somatic embryogenesis in combination with cryopreservation for breeding programs, it is necessary to monitor its genetic stability. The aim of the present study was the assessment of somaclonal variation in plant material obtained from embryogenic cultures of Picea abies (L.) Karst. and P. omorika (Pančić) Purk. maintained in vitro or stored in liquid nitrogen by the pregrowth-dehydration method. The analysis of genetic conformity with using microsatellite markers was performed on cotyledonary somatic embryos (CSE), germinating somatic embryos (GSE) and somatic seedlings (SS), obtained from tissues maintained in vitro or from recovered embryogenic tissues (ETc) and CSE obtained after cryopreservation. The analysis revealed changes in the DNA of somatic embryogenesis-derived plant material of both Picea spp. They were found in plant material from 8 out of 10 tested embryogenic lines of P. abies and in 10 out of 19 embryogenic lines of P. omorika after in vitro culture. Changes were also detected in plant material obtained after cryopreservation. Somaclonal variation was observed in ETc and CSE of P. omorika and at ETv stage of P. abies. However, most of the changes were induced at the stage of somatic embryogenesis initiation. These results confirm the need for monitoring the genetic stability of plants obtained by somatic embryogenesis and after cryopreservation for both spruce species.

Źródło:

Acta Biologica Cracoviensia. Series Botanica; 2017, 59, 1
0001-5296

Pojawia się w:

Acta Biologica Cracoviensia. Series Botanica

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:

Investigation of Modal Behaviour of Resonance Spruce Wood Samples (Picea abies L.)

Autorzy:

Mania, P.
Fabisiak, E.
Skrodzka, E.

Powiązania:

https://bibliotekanauki.pl/articles/177109.pdf

Data publikacji:

2017

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

resonance wood
spruce wood
modal analysis

Opis:

Results of experimental modal analysis of a resonance and non-resonance spruce wood (Picea abies L.) are presented. The resonance wood came from a tree from Poland and Bosnia and Herzegovina, while the non-resonance wood came from the vicinity of Olsztyn from the north-eastern Poland. The modal parameters (modal frequency, modal damping and mode shapes) of the wood samples were determined for the samples of 8 mm in thickness. Modal analysis was made by pulse excitation. The resonance and non-resonance wood differ in the fundamental modal parameters as well as in the number of potential modes. Additionally, calculated values of damping factor are presented. The values are much bigger for a non-resonance wood than for good quality resonance spruce.

Źródło:

Archives of Acoustics; 2017, 42, 1; 23-28
0137-5075

Pojawia się w:

Archives of Acoustics

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:

Fine roots of Picea abies compensate for drought stress in the rainfall reduction experiment

Autorzy:

Lorenc, F.
Pešková, V.
Modlinger, R.
Mrnka, L.
Tomášková, I.
Šenfeld, P.
Turčáni, M.

Powiązania:

https://bibliotekanauki.pl/articles/2077946.pdf

Data publikacji:

2018

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

climate change
community
ectomycorrhiza
Norway spruce
WinRhizo

Opis:

This study evaluates the influence of repeated artificial drought stress on the fine root charac- teristics – including ectomycorrhizae – of Norway spruce [Picea abies (L.) Karst]. The experimental site consisted of two plots in a mature spruce monoculture stand. The water regime at parts of both plots was regulated by shelters and an isolation trench during vegetation season (spring to autumn) since 2010. Root samples were collected during autumn in 2010, 2012, and 2013. Root analyses revealed the effect of drought stress on mycorrhizal root tips changed over time. While a density of active mycorrhizae was about 34% lower in drought-stressed areas compared to nonstressed (control) areas in 2010, it increased by 15% in 2012 and by 22% in 2013 over both plots. We observed the less pronounced effect of drought on a proportion of active mycorrhizae, but it generally followed the pattern of active mycorrhizae density. The density of nonactive mycorrhizae was not influenced by drought but significantly fluctuated during the course of the experiment. Other root characteristics such as the dry mass of fine roots (< 1 mm), the specific length of fine roots (< 1 mm) and the composition of the ectomycorrhizal community (primarily dominated by Amphinema byssoides, Tylospora fibrillosa, Tylopilus felleus, and Cenococcum geophilum) were also not significantly influenced by drought. Our results indicate the ability of Norway spruce fine roots to com- pensate for repeated drought stress of the intermediate intensity.

Źródło:

Dendrobiology; 2018, 80; 91-100
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:

Biometric characterisation of selected seed stands of Picea abies (L.) Karst. of Istebna

Autorzy:

Orzel, S
Forgiel, M.

Powiązania:

https://bibliotekanauki.pl/articles/41646.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea abies
seed stand
site condition
growing
tree
biometric characteristics
statistics
spruce tree
crown length
mountain vegetation

Opis:

The paper assesses the growth of nine seed stands of Picea abies (L.) Karst. of Istebna. The stands were selected on the basis of the dynamic height growth and good adaptation of their progeny under different site conditions. The d.b.h. increment of trees during the entire lifespan of stands is analysed in detail, especially its magnitude and dynamics during the last twenty years, i.e. from 1982 to 2001.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:

Illuminance under canopy in different types of forest in the northern taiga

Autorzy:

Feklistov, Pavel
Sobolev, Alexandr
Barzut, Oksana
Neverov, Nikolay

Powiązania:

https://bibliotekanauki.pl/articles/2041229.pdf

Data publikacji:

2021

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

illumination
forest type
spruce forests
pine forests

Opis:

The illumination under the canopy in different types of pine and spruce forests is considered. The research was carried out in different points of the Northern taiga of the Arkhangelsk region. Illumination was measured using a luxmeter in different directions: at the level of the moss-lichen layer, at the level of the grass-shrub layer and at a height of 1.3 m; at different distances from the tree trunk; at different distances from the edge of the forest. Illumination in pine forests at the level of the moss-lichen layer is 2.3 times higher than in spruce forests. Under the canopy of spruce forests, it is 1–3%, and in the pine forests, 3–9% of the illumination in the open. Illumination from tree trunks to the edge increases in pine and spruce forests equally. The lowest illumination is observed at the level of the moss-lichen layer, then it increases to the grass-shrub layer, and then practically does not change. However, the difference between pine and spruce forests is consistently high 47%. The decrease in illumination in the tree stand as it moves away from the edge in blueberry pine forests is observed up to a distance of 10 m from the edge, and in blueberry spruce forests up to 6 m.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 2; 112-115
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:

The dynamics of forest species composition in the Eastern Moscow Region

Autorzy:

Kiseleva, Vera
Stonozhenko, Leonid
Korotkov, Sergei

Powiązania:

https://bibliotekanauki.pl/articles/2041639.pdf

Data publikacji:

2020

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

successions
overstorey
undergrowth
spruce
lime
Moscow region

Opis:

The forests of urbanised areas provide multiple ecosystem services and are highly dynamic. Determining the trends in species composition changes can help to predict their future capacity to fulfil ecological and resource-maintaining functions. We examined the direction of forest successions in the Northeast Moscow region under the canopy of different tree species. Field data were obtained from 78 permanent test plots monitored for more than a 15-year period; field studies were complemented by archival data. The cluster analysis made it possible to divide all plots into five groups by current species composition and structure and into eight groups by the importance of broadleaved species in the undergrowth. Gradual evolution (cohort dynamics) was found to be typical for middle-aged secondary forests; patch dynamics was described in mature stands of late succession species after non-critical natural disturbances; drastic changes were observed in spruce (Picea abies (L.) Karst.) stands after pest attacks. Two main trends were revealed in species composition shift: restoration of mixed spruce-broadleaved forests and development of limedominated broad-leaved forests, the latter being the prevailing one in the stands of composite forest types. Intensive development of oak-associated species is probably related to the climate conditions in the Moscow megacity. The content of this article may be of interest for researchers studying natural forest dynamics and can be used for prospective planning of target species composition in the forestries of the Moscow region.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 2; 53-67
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 16.

Tytuł:

A Study on the Correlation between Wood Moisture and the Damping Behaviour of the Tonewood Spruce

Autorzy:

Göken, J.
Fayed, S.
Schäfer, H.
Enzenauer, J.

Powiązania:

https://bibliotekanauki.pl/articles/1030781.pdf

Data publikacji:

2018-05

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

spruce wood
musical instruments
wood moisture
damping measurement

Opis:

In acoustic musical instruments special attention needs to be paid to those particularly sensitive parts made of tonewood whose function is to respond to vibrations. One of the most important tonewoods is spruce because of its good resonance properties. Spruce is especially used for soundboards, these being the primary source of sound. Piano manufacturers dry their soundboards to approximately 6% wood moisture, at which drying stage they are glued into the instrument. Fluctuations of the moisture content in the wood affect the tone. With changing moisture content, the instrument can go out of tune, even cracks can appear at very low moisture content in the wood. In addition, the tone colour will change. This may result from changes in the hammer felt or from changes in the vibration properties of the soundboard. Strain- and frequency-dependent damping measurements were carried out on spruce wood at different wood moisture contents in order to investigate the effect of the moisture content on the vibration behaviour. Wood which is slowly dried in air for several years is preferably used for high-class pianos. Therefore, damping measurements on new and on more than 130-year old spruce wood samples were performed.

Źródło:

Acta Physica Polonica A; 2018, 133, 5; 1241-1260
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:

The radial growth-competition relationship in Picea abies stands affected by windfall

Autorzy:

Badea, O.
Dumitru, I.
Cojocia, C.
Popa, I.

Powiązania:

https://bibliotekanauki.pl/articles/41406.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
stand
Picea abies
windfall
risk factor

Opis:

Actual status of mountain forests especialy, of Norway spruce (Picea abies Karst. (L)) stands is a result of combined action between forest management measures and biotic and abiotic risk factors. In this context, tree growth dynamics is a result of multifactor interaction (competition, disturbance, management practice, climate etc.). Wind damage affect the stand structure and normal ecosystem functions including the relationship between individual tree growth and competition processes. Though, it is recorded a diminishing of productive capacity for affected stands as well as a significant diameter increment for remaining standing trees. The correlation between tree growth (cumulate basal area increment in the last 10 years) and competition (Hegyi and Schutz competition indices) was analysed in stands with different windfall intensity. No relationship between tree growth and competition was observed in highly affected stands. Schutz competition index explains better individual tree growth comparing with Hegyi index in low or no-affected stand by windthrow. The variability of the basal area increment (lnΔɡ10), explained by competition indices, is rather low (<2%) in the stand that had been highly affected by windfall, regardless of the selected competition index. Thus, significant reduction of the stand density related to number of trees (low density), as a consequence of high intensity windfalls, crown competition has a very small influence on the basal area increment comparing with situations met in low (high density) and moderate (medium density) affected stands.

Źródło:

Dendrobiology; 2015, 73
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Gregarina typographi (Eugregarinorida: Gregarinidae) in the bark beetle Ips typographus (Coleoptera: Curculionidae): transmission in nuptial chambers

Autorzy:

Lukášová, Karolina
Holuša, Jaroslav

Powiązania:

https://bibliotekanauki.pl/articles/763648.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Beskids, Gregarinidae, horizontal transmission, protozoan disease, spruce bark beetle

Opis:

Changes in Gregarina typographi Fuchs, 1915 (Eugregarinorida: Gregarinidae) infection levels were studied in a population of the bark beetle Ips typographus (L., 1758) (Coleoptera: Curculionidae), which lives in association with Norway spruce. Beetles were repeatedly collected from three logs of trap trees during 2009 and 2010 at one study site in the Czech Republic with a high level of G. typographi infection (seasonal mean of 15.7% in 2009 and 19.8% in 2010). Infection levels did not differ statistically between sexes, logs, and trap trees but did differ among sampling dates. During the beetle reproductive period, the infection levels nearly doubled in 2009 (from 10.7 to 19.8%) and more than tripled in 2010 (from 9.3 to 31.3%). We infer that the continuous increase in the G. typographi infection level within each of the two years resulted from transmission among beetles in nuptial chambers during the May–June reproductive and egg-laying period.

Źródło:

Acta Protozoologica; 2011, 50, 4
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

A tree - ring reconstruction of geomorphologic disturbances in cliff forests in the Tatra Mts.

Autorzy:

Zielonka, T.
Dubaj, N.

Powiązania:

https://bibliotekanauki.pl/articles/294903.pdf

Data publikacji:

2009

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

cliff forest
dednrochronology
landslide
Norway spruce (Picea abies)
rockfall

Opis:

Geomorphological events are very important disturbance factors for cliff forests and forests located on steep mountain slopes. In this study we present dendrochronological reconstruction of two types of disturbances which affect subalpine forest growing in such extreme habitats in Roztoka Valley in the Tatra Mountains: landslide and rockfalls. We determine the years of death of trees found in landslide area on Czuba Roztocka which indicate the year of 1997 as the time of this event, probably related to heavy midsummer rainfall in this year. Scars on trees growing at the base of Orle Ściany cliff allowed determining the rockfall events. We found that scars, even in neighbour trees were formed in different years between 1940 and 2004. It means that they were formed rather by separate stones which fell from the cliff sporadically then a large scale fall of debris at the same time. This may suggest that rockfalls in cliffs of Orle Ściany were limited to single rocks which fell successively when erosion process separated them from the bedrock. Dendrochronology seems to be an effective method which enables long term reconstruction of gemorphological processes in the High Tatras.

Źródło:

Landform Analysis; 2009, 11; 71-76
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 20.

Tytuł:

Monitoring of xylem formation in Picea abies under drought stress influence

Autorzy:

Gryc, V.
Hacura, J.
Vavrcik, H.
Urban, J.
Gebauer, R.

Powiązania:

https://bibliotekanauki.pl/articles/41506.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

monitoring
xylem formation
Norway spruce
Picea abies
drought stress

Opis:

The effect of drought stress on regular cambium activity and wood formation in stems of two different clones of Norway spruce (Picea abies (L.) Karst.) was investigated. Tissue samples were taken during the growing season from May to September 2010. Artificial drought stress, induced by long-term sheltering of the soil, was significantly manifested in clone 15. In the stressed individual, the period of cambium activity was shorter, the total number of formed cells was lower and the resulting tree ring was narrower. The number of cells in the phases of postcambial growth and secondary cell wall formation was significantly lower in comparison to the control tree. The tracheid lignification process was slower in the tree stressed by water deficit and the first mature tracheids were observed later. On the other hand, in clone 18 probably genetic dispositions played an important role as no considerable deviations in the cambium activity and new wood cells production were observed. Fitting xylem increments to the Gompertz function showed that the period of the most intensive cell formation was at the turn of June and July and the maximum daily production of new cells was higher in non-stressed individuals than in the stressed ones. The results of the experiment lead us to the conclusion that drought stress can significantly affect the cambium activity of some clones, the differentiation process of anatomical elements, and thus also the resulting tree ring width.

Źródło:

Dendrobiology; 2012, 67
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Wpływ wskaźnika zadrzewienia drzewostanu na wybrane cechy makrostruktury i gęstość drewna świerkowego (Picea abies (L.) Karst.)
Effect of stand density index on selected features of macrostructure and density of Norway spruce (Picea abies (L.) Karst.) wood

Autorzy:

Michalec, K.

Powiązania:

https://bibliotekanauki.pl/articles/978906.pdf

Data publikacji:

2020

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

tree−ring width
latewood proportion
wood density
Norway spruce

Opis:

The aim of the study was to determine the influence of stand density index on the tree−ring width, latewood proportion and wood density for Norway spruce. Study sites were located as follows: 12 within the north−eastern species range in Poland, 7 in the south−western range, in the Sudety Mts., and 9 in the Carpathians (southern range). Clustering stands according to their stand density index, 10 data groups were established: stand density index values from 0.3 to 1.2. The study plots were 100×100 m squares. On each plot 15 trees were chosen and increment cores were sampled using the Pressler borer. The smoothed cores served for measuring the width of annual rings, latewood zones and the share of latewood as well as for determination of relative wood density. The performed analyses indicate that mean tree−ring width was the highest in trees from stands with density index from 0.3 to 0.8 (with the exception of 0.7), whereas the it was gradually decreasing in stands with index higher than 0.9. The statistically significant differences between the analyzed stands were observed (p<0.0001). The analysis of the influence of stand density index and the width of annual rings revealed significant, negative weak correlation (r=–0.242, p<0.001). In turn, the latewood proportion was the highest in trees from stands characterised by the highest stand density index and the lowest in trees from stands with the lowest one. The differences between analyzed groups of stands were statistically significant (p<0.0001), as well as the correlation which was significant, positive and weak (r=0.269, p<0.001). Wood density was the highest in trees from stands with the highest stand density index (1.1 – 363 kg/m3 i 1.2 – 365 kg/m3) as well as in those from stands characterised by 0.7 density index (369 kg/m3). Significant differences were observed (p<0.0001) only between stand density index 0.3−0.7 and 0.7−0.8. Significant correlation was not observed.

Źródło:

Sylwan; 2020, 164, 09; 719-725
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 22.

Tytuł:

The radial variation of the selected physical and mechanical properties of Norway spruce (Picea abies (L.) H. Karst) wood from the provenance area in Głuchów

Autorzy:

Zawadzka, Karolina
Kozakiewicz, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/2201235.pdf

Data publikacji:

2019

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

Norway spruce
wood density
wood properties
mechanical and physical parameters

Opis:

The radial variation of the selected physical and mechanical properties of Norway spruce (Picea abies (L.) H. Karst) wood from the provenance area in Głuchów. Spruce wood (Picea abies (L.) H. Karst) is one of the main species used in building constructions. Due to the wide occurrence, it is important to test various origins and in this way select those with the best material properties. Wood was obtained from one habitat from a provenance experimental area in Głuchów from 40-year-old trees. For the study, trees from three different origins were selected: Nowe Ramuki, Bliżyn and Rycerka Praszywka II (origin from respectively northern, central and southern Poland - seedlings came from these places). Spruce wood from Bliżyn, which is the closest to the proven research area in Głuchów, reached the highest average values in all studied traits (density, ultrasonic wave velocity, dynamic and static modulus of elasticity and static bending strength) and was characterized by the highest variability of these features. Regardless of the origin, the above-mentioned features of the wood showed a clear upward trend going from the pith to the to the side of the trunk.
Zmienność promieniowa wybranych właściwości fizycznych i mechanicznych drewna świerkowego (Picea abies (L.) H. Karst) z powierzchni proweniencyjnej w Głuchowie. Ze względu na szerokie występowanie świerk pospolity wykazuje znaczną zmienność genetyczną, która może przekładać się również na cechy i właściwości tworzonego drewna, decydujące o przydatności surowca do różnych celów przemysłowych. Badanie przeprowadzono na drewnie pozyskanym z 40-o letniego, litego drzewostanu świerkowego z powierzchni doświadczalnej Leśnego Zakładu Doświadczalnego Rogów w Leśnictwie Głuchów. Poszczególne drzewa, wzrastające w tych samych warunkach, różniły się pochodzeniem. W niniejszej pracy analizowano trzy pochodzenia: po jednym z północnej, centralnej i południowej części Polski, a mianowicie: Nowe Ramuki, Bliżyn i Rycerka Praszywka II. Drewno świerkowe z pochodzenia Bliżyn, leżącego najbliżej proweniencyjnej powierzchni badawczej w Głuchowie, osiągnęło najwyższe średnie wartości we wszystkich badanych cechach (gęstości, prędkości fal ultradźwiękowych, dynamicznego i statycznego modułu sprężystości oraz wytrzymałości na zginanie statyczne)a także charakteryzowało się największą zmiennością tych cech. Niezależnie od pochodzenia wymienione wyżej cechy drewna wykazywały wyraźną tendencję wzrostową idąc od rdzenia do obwodu pnia.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2019, 105; 133--143
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 23.

Tytuł:

Biopolymer composites based on galactoglucomannans (ggms) and micrystaline chitosan (mcch)

Autorzy:

Kopania, Ewa
Wiśniewska-Wrona, Maria

Powiązania:

https://bibliotekanauki.pl/articles/1034988.pdf

Data publikacji:

2015

Wydawca:

Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe

Tematy:

biopolymer composites
enzymatic treatment
galactoglucomannans
microcrystalline chitosan
spruce
thermal treatment

Opis:

The article presents a method of extracting galactoglucomannas (GGMs) from softwood (spruce). GGMs were extracted using thermal and enzymatic treatment in an aqueous environment. The extracted GGMs, depending on the extraction method, were characterized by different composition of simple carbohydrates i.e. glucose, galactose and mannose, as well as by the average molecular weight. Evaluation of the composition of GGMs obtained was performed using GC/MS and SEC. Biopolymer composites were obtained by combining GGMs and microcrystalline chitosan (MCCh), which can be used as preparations for plant protection and growth stimulation. The studies were performed in order to evaluate biological activity of composites based on Petri dish test in which their ability to stimulate seed germination of selected plants was estimated. The effect of plant growth stimulation depended on GGMs composition of simple carbohydrates. GC/MS and SEC chromatographic tests and 13C NMR analysis enabled to establish the composition and structural changes of the obtained GGMs and biocomposites

Źródło:

Progress on Chemistry and Application of Chitin and its Derivatives; 2015, 20; 110-121
1896-5644

Pojawia się w:

Progress on Chemistry and Application of Chitin and its Derivatives

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 24.

Tytuł:

Quality assessment methods for Picea abies seeds

Autorzy:

Prochazkova, Z

Powiązania:

https://bibliotekanauki.pl/articles/41166.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
seed quality
purity
germination
health testing
assessment method
spruce seed

Opis:

The quality assessment of spruce seeds consists mainly in determining their germination capacity, including germination rate (speed), but also purity and weight. Internationally recognised methods are listed in the ISTA Rules for Seed Testing which also specify test conditions. Some countries such as Poland use modified methods. Apart from providing information about the purity of a species, purity testing can also identify the proportion of winged seeds in each seed lot. Germination tests yield data on the maximum germination potential of a seed lot which are used to compare the quality of different lots and to establish the field sowing values. This paper presents the methods used for assessing the quality of Norway spruce seeds, and discusses their advantages and disadvantages and the problems that need further investigation.

Źródło:

Dendrobiology; 2009, 61 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 25.

Tytuł:

The dynamics and structure of dead wood in natural spruce-beech forest stand - a 40 year case study in the Krkonose National Park

Autorzy:

Vacek, S.
Vacek, Z.
Bilek, L.
Hejcmanova, P.
Sticha, V.
Remes, J.

Powiązania:

https://bibliotekanauki.pl/articles/41560.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

forest
natural forest
mixed stand
dynamics
structure
dead wood
spruce-beech forest
European beech
Fagus sylvatica
Norway spruce
Picea abies
Czech Republic
Karkonosze National Park

Opis:

The study deals with long-term dynamics of snags and fallen dead wood from 1970 to 2010 in an unmanaged forest ecosystem dominated by European beech in the Bažinky area, Krkonoše National Park (Czech Republic). The volume of dead wood was estimated from 1970 separately for fallen dead wood (logs) and standing dead wood (snags and stumps). Total dead wood volume on permanent research plot (PRP) 6 increased from 41.9 to 241.6 m3 ha–1 and on PRP 7 from 27.7 to 170.0 m3 ha–1. During 40 year case study the mean total volume of fallen dead wood was 193.3 m3 ha–1 (± 29.8 S.E.) and 96.2 m3 ha–1 (± 19.4 S.E.) and the mean total volume of standing dead wood was 17.4 m3 ha–1 (± 3.4 S.E.) and 12.6 m3 ha–1(± 1.4 S.E.) on PRP 6 and PRP 7, respectively. Comparing tree species, the mean volume of fallen dead wood was significantly higher for Norway spruce than for beech in the decomposition class 1 (F(1, 14) = 5.7, P = 0.03) and significantly higher for beech in the decomposition classes 4 (F(1, 14) = 20.4, P < 0.001) and 5 (F(1, 14) = 25.5, P < 0.001). Dead wood was distributed from randomly to aggregated spatial pattern. Despite the rapid decay of beech wood, the amounts of deadwood are likely to increase further during the next decades with continuing disintegration of the forest stand.

Źródło:

Dendrobiology; 2015, 73
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Spadek wytrzymałości mechanicznej drewna świerkowego na skutek zniszczeń spowodowanych przez owady
Strength decrease of spruce wood as a result of damage by insects

Autorzy:

Żelazny, H.
Bednarz, B.

Powiązania:

https://bibliotekanauki.pl/articles/362699.pdf

Data publikacji:

2017

Wydawca:

Instytut Fizyki Budowli Katarzyna i Piotr Klemm

Tematy:

drewno świerkowe
wytrzymałość
szkodniki techniczne
spruce wood
strength
xylophage insects

Opis:

W pracy zbadano o ile może zmniejszyć się wytrzymałość mechaniczna drewna świerkowego z powodu zniszczenia tkanki drzewnej przez szkodniki techniczne. W ocenie zginania uzyskano około 1,6-krotne zmniejszenie wytrzymałości drewna uszkodzonego, przy rozciąganiu wzdłuż włókien wytrzymałość doraźna zmalała 1,4 razy, natomiast przy rozciąganiu w poprzek włókien niespodziewanie odnotowano 1,4-krotny wzrost tej wytrzymałości. Badanie próbek na ściskanie wzdłuż włókien pozwoliło stwierdzić, że wytrzymałość drewna zniszczonego przez owady zmalała około dwukrotnie, a przy ścinaniu w poprzek włókien obniżyła się nawet 2,8-krotnie. Uzyskane wyniki potwierdzają znaczne obniżenie się niezawodności konstrukcji drewnianych na skutek zniszczeń struktury materiałowej przez owady, co nie może nie mieć znaczenia w bezpieczeństwie użytkowania obiektów budowlanych.
The purpose of the work was to examine how much it can decrease strength spruce wood damaged by insects. In bending test was obtained about 1,6 times strength reduction of damaged wood. When stretching along the fibers ad-hoc endurance decreased 1,4 times, while at stretching across the fibers unexpectedly detected 1,4 times strength increase. In compression test was obtained about double reduction of ad-hoc strength. On shear across the fibers detected 2,8 times decrease of endurance. Results confirm significant reduction of reliability of wooden constructions as a result of damage by insects, what is important for structural safety.

Źródło:

Fizyka Budowli w Teorii i Praktyce; 2017, T. 9, nr 1, 1; 45-50
1734-4891

Pojawia się w:

Fizyka Budowli w Teorii i Praktyce

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 27.

Tytuł:

Forest plantation productivity - soil interactions within Western Forest-Steppe of Ukraine: effects of pH and cations

Autorzy:

Raspopina, Svitlana
Debryniuk, Yuriy
Hayda, Yuriy

Powiązania:

https://bibliotekanauki.pl/articles/2041494.pdf

Data publikacji:

2020

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

forest plantation
larch
spruce
oak
potential acidity
absorbed bases
movable aluminium

Opis:

Dark grey podzolized soils on the loess like loams, which are represented in the soil cover within fresh and humidity gradients in the Western Forest Steppe of Ukraine, are characterized by high forest vegetation potential, which ensure the formation of mostly pure and mixed larch and spruce stands with high level of the productivity. Despite the fact that both species are coniferous, their effect on the soil, in particular, on its acid-base indicators (actual and potential forms of acidity, sum of absorbed bases, degree of saturation of bases, content of mobile aluminium), which are important components of soil fertility, are specific. Due to the fact that there is a close interaction between forest plantations and soil properties, changing the participation of species in the stand, it is possible to adjust the actual soil fertility. The soils under both pure and mixed spruce and larch stands are characterized by a high level of potential acidity that reaches the high acidic values in the upper horizons. A similar reaction of soil solution under coniferous forests is caused by acid hydrolysis of aluminosilicates and accumulation of mobile Al in the rhizosphere zone. Simultaneously, the same acidic characteristics, including the presence of movable aluminium, are also found in soils under broadleaved plantations. In general, acid-exchange properties of soils (high potential acidity, unsaturation of bases and availability of movable aluminium) traditionally are considered as unfavourable for vegetation. However, our researches refute it and prove that within certain values, these indicators do not limit the productivity of pure and mixed spruce and larch stands.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 4; 233-245
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 28.

Tytuł:

Size and localisation of knots in timber from mountain spruce stands in the Dolomites

Autorzy:

Barszcz, A.
Sandak, A.
Sandak, J.

Powiązania:

https://bibliotekanauki.pl/articles/38333.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

size
localization
knot
timber
mountain spruce
tree stand
Dolomites
knot healthiness

Opis:

The aim of the study was evaluation of knots in wood of 150-year-old Norway spruce [Picea abies (L.) Karst.] in stands situated at the altitude of 1450– 1740 m above sea level in the Dolomites in Italian section of the Alps. In selected stands, spruce trees were cut down and their length, stem thickness, height to the crown base and stem diameters at every 1 m along the length of merchantable bole were measured. The diameter of knots was measured and they were classified according to their healthiness and the degree of their tightness with the surrounding wood. The relative knot diameters were calculated and the relative height of their location on stem was determined. In total on sample trees there were analysed 1070 knots, of which sound knots (close to 75%) and tight (more than 60%) prevailed. Sound and tight knots had largest diameters, relative diameters and relative heights of location on merchantable boles. The smallest diameters and relative diameters were indicated by rotten and not tight knots that were located at the lowest merchantable bole parts.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 29.

Tytuł:

Flowering and cone bearing of Picea abies grafts in second-generation seed orchards

Autorzy:

Misiorny, A
Chalupka, W.

Powiązania:

https://bibliotekanauki.pl/articles/41542.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea abies
cone yield
seed production
flowering
seed orchard

Opis:

In 2004, abundant flowering of Norway spruce (Picea abies (L.) Karst.) was observed in two second- generation seed orchards: (1) ‘Outbreeding’, promoting crossing between clones of five geographically distant populations; and (2) ‘Kolonowskie’, restoring a population whose offspring exists only in an international experiment (IUFRO 1964/1968). In bothseed orchards, female strobili were produced by 91.3% and 91.7% of clones, represented by 64.1% and 55.5% of grafts, respectively, and statistically significant differences between clones were found in the number of mature cones. In the case of the seed orchard ‘Outbreeding’, the number of mature cones in individual clones was significantly correlated with latitude of the origin of maternal populations (r = 0.8826, p = 0.0470). The majority (95%) of cones in seed orchards ‘Outbreeding’ and ‘Kolonowskie’ were produced by only 28.2% and 38.5% of all clones, and 21.4% and 25.7% of all grafts, respectively. These data attest to a disparity between the level of genetic diversity in seed orchard progeny resulting from the observed numbers of cone-bearing clones and grafts and the genetic diversity expected from the actual participation of clones and grafts in seed orchard composition. The estimated seed production per 1 ha of seed orchard area in 2004 reached 21.05 kg for ‘Outbreeding’ and 21.72 kg for ‘Kolonowskie’.

Źródło:

Dendrobiology; 2006, 56; 51-59
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 30.

Tytuł:

Effect of thermal modification temperature of spruce wood on cutting parameters during circular saw blade cutting

Autorzy:

Hlásková, Luďka
Kopecký, Zdeněk
Novák, Vit

Powiązania:

https://bibliotekanauki.pl/articles/2146674.pdf

Data publikacji:

2021

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

thermal modification
cutting force
specific cutting resistance
circular saw blade
spruce

Opis:

Effect of thermal modification temperature of spruce wood on cutting parameters during circular saw blade cutting. The work examines the effect of temperature on energetical parameters (specific cutting resistance and cutting force) when cutting heat-treated wood of Norway spruce (Picea Abies) by a circular saw. The test samples were heat-treated at 160°C, 180°C, 200°C and 220°C. One sample was not heat treated and was used as a reference sample. In comparison with the theoretical assumptions, the influence of temperature on the cutting force and specific cutting resistance was confirmed. With increasing temperature of modification, the specific cutting resistance and cutting force decreased. The reduction of value of cutting force is related to changes in the chemical structure of the wood components, weight and density loss due to the increasing temperature of modification.
Wpływ temperatury modyfikacji termicznej drewna świerkowego na parametry skrawania podczas cięcia piłą tarczową. W pracy zbadano wpływ temperatury modyfikacji na parametry skrawania (oprór skrawania i siła skrawania) przy cięciu piłą tarczową drewna świerka pospolitego (Picea Abies) poddanego obróbce termicznej. Próbki drewna do badań poddano obróbce w temperaturze 160°C, 180°C, 200°C i 220°C. Jako wariant kontrolny wykorzystano drewno naturalne (nie poddane obróbce termicznej). W ramach badan potwierdzono wpływ temperatury modyfikacji na siłę skrawania i opory skrawania drewna. Wraz ze wzrostem temperatury modyfikacji zmniejszały się wartosci oporu skrawania i siły skrawania. Zmniejszenie wartości siły skrawania związane jest ze zmianami struktury chemicznej składników drewna, ubytkiem masy i gęstości pod wpływem wzrostu temperatury modyfikacji.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2021, 113; 30--35
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 31.

Tytuł:

Ophiostomatoid fungi associated with Ips typographus [L.] on Picea abies [L.] H.Karst.] and Pinus sylvestris L. in North-Eastern Poland

Autorzy:

Jankowiak, R
Hilszczanski, J.

Powiązania:

https://bibliotekanauki.pl/articles/57239.pdf

Data publikacji:

2005

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Scotch pine
Norway spruce
Ceratocystis polonica
Polska
Picea abies
Curculionidae
fungi
Ips typographus
Ophiostoma piceaperdum
spruce bark beetle
ophiostomatoid fungi
Pinus sylvestris
tree
bark beetle
Coleoptera
Scolytinae

Opis:

This study dealt with the species distribution and frequency of ophiostomatoid fungi associated with the bark beetle Ips typographus on Norway spruce and Scots pine in north-eastern Poland. At all locations high spruce bark beetle damage has occurred in 2002-2003. Fungi were isolated from beetles and from brood systems of trees infested by the spruce bark beetle. The ophiostomatoid fungi were represented by 13 species. A similar spectrum of ophiostomatoid fungi as that recorded from Picea abies was associated with I. typographus on Pinus sylvestris trees. The most frequent ophiostomatoid species isolated from beetles, phloem and sapwood of Norway spruce were O. bicolor and O. penicillatum. The frequency of occurrence of ophiostomatoid fungi varied significantly among the examined locations. O. bicolor was the most frequently found species on Scots pine infested by I. typographus. The potential role of ophiostomatoid fungi in the epidemiology of I. typographus is discussed. Additionally, we also recorded how the ophiostomatoid fungi associated with spruce bark beetle could grow into phloem and sapwood of Pinus sylvestris trees.

Źródło:

Acta Societatis Botanicorum Poloniae; 2005, 74, 4
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 32.

Tytuł:

Research on the variability of Picea abies in Poland: genetic and breeding value of spruce populations in the Polish range of the species

Autorzy:

Sabor, J

Powiązania:

https://bibliotekanauki.pl/articles/41487.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
spruce
plant population
provenance test
intrapopulation variability
genetic resource
genetic value
breeding value
gene bank

Opis:

The work outlines the directions in the past and present research into the variability of Norway spruce in Poland, and presents the results of provenance experiments concerning the genetic and breeding value of provenances tested in the Polish range of spruce distribution. The Istebna race proved to have a good value, however, so far only the progeny of single stands have been tested. It is thus necessary to determine the range of distribution for this race. The altitude of the location of mother stands significantly correlates with the genetic and breeding value of their progeny cultivated at different altitudes. This suggests that the altitude and exposure of plantations to be established in mountain forest belts should be specified for individual provenances (altitudinal zoning). New inventory provenance tests should be run under varied site conditions to assess both the genetic value and plasticity range of the provenances. In view of the biotic and abiotic threats facing spruce, there is a need to work out detailed programmes designed to preserve its genetic resources in gene banks and in vivo archives.

Źródło:

Dendrobiology; 2009, 61 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 33.

Tytuł:

Insect assemblages in Norway spruce [Picea abies (L.) Karst.] stumps in the Eastern Sudetes

Autorzy:

Skrzecz, I.
Bulka, M.

Powiązania:

https://bibliotekanauki.pl/articles/38781.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

insect
beetle
Coleoptera
assemblage
Norway spruce
Picea abies
stump
Sudetes Mountains

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 34.

Tytuł:

A 434-year tree-ring chronology of spruce (Picea abies) with indications of Estonian precipitation

Autorzy:

Laanelaid, A.
Helama, S.
Eckstein, D.

Powiązania:

https://bibliotekanauki.pl/articles/41704.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

dendrochronology
conifer
dendroclimatology
drought
Norway spruce
Picea abies
tree ring
Estonia

Opis:

In this study, an Estonian tree-ring network of Norway spruce (Picea abies (L.) H.Karst.), originating from both living trees and dead wood of construction wood, was used for determining the growth variations over the past 350 years (AD 1657–2009). Regional curve standardization was used to remove the non-climatic growth variations from the individual tree-ring series prior to dendroclimatic analyses to focus on the low-frequency (long-term and -period) growth variations. Previously, the chronology has been shown to correlate markedly well with Estonian precipitation history. Here we further detail this dendroclimatic connection. Correlations between the Estonian precipitation and treerings improved systematically with both the number of meteorological stations included and with the documented technical advances in the network of instrumental weather observations. The observed June precipiation explains roughly 20 percent of the tree-ring variance over the period when the network of weather observations is densest (1946–2009). On decadal and longer scales, the June precipitation explains higher portion of tree-ring variance, roughly 50 percent, over the full instrumental era (1866–2009). Comparison with previously published and similarly standardized tree-ring chronology from south-eastern Finland, based on Scots pine tree-rings, showed that the two chronologies exhibit several coinciding periods of ameliorated and deteriorated growth.

Źródło:

Dendrobiology; 2015, 73
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 35.

Tytuł:

Long-term effect of climate and air pollution on health status and growth of Picea abies (L.) Karst. peaty forests in the Black Triangle region

Autorzy:

Vacek, Z.
Vacek, S.
Prokůpková, A.
Bulušek, D.
Podrázský, V.
Hůnová, I.
Putalová, T.
Král, J.

Powiązania:

https://bibliotekanauki.pl/articles/2077652.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
air pollutants
climate factors
nutrients
stress factors
Czech Republic

Opis:

The Jizerské hory Mts. (the Czech Republic) are part of the Black Triangle region strongly af- fected by a decline and dieback of Norway spruce (Picea abies [L.] Karst.) stands since the 1970s. In the studied peaty spruce stands in the summit parts of the Jizerské hory Mts., the health status, radial growth and foliar nutrient content in relation to air pollution (SO2, NOX and O3) and climate factors (temperature, precipitation) were investigated in 1960–2015. A considerable disturbance of the stand structure induced by an increased mortality was observed in 1981–1983 when more than a half of the tree individuals died. Severe defoliation occurred in 1981 as a consequence of the synergic effects of air pollution, winter des- iccation and spruce bark beetle outbreak, as well as in 2015 due to the drought and high temperatures. Tree ring analyses indicated significant growth depression in 1979–1987, a period of the highest SO2 load, and in 2010–2015. Foliation and diameter increment were significantly influenced by SO2 and NOX con- centrations, the maximum daily concentration being the most negative factor; no significant correlation of the ozone exposure was detected, though. Foliar analyses also document significant negative impacts of air pollutants on the nutrient status of forest stands, mainly in the increase of the sulphur level. Since 1990, a significant increase in calcium and magnesium has been observed, as a result of forest liming. Interaction between radial growth and temperature was stronger compared to precipitation. Low temper- atures and high precipitation in growing season were the limiting factors for radial growth in waterlogged mountain areas.

Źródło:

Dendrobiology; 2020, 83; 1-19
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 36.

Tytuł:

Forest ecosystem as a source of CO2 during growing season: relation to weather conditions

Autorzy:

Taufarova, K.
Havrankova, K.
Dvorska, A.
Pavelka, M.
Urbaniak, M.
Janous, D.

Powiązania:

https://bibliotekanauki.pl/articles/26563.pdf

Data publikacji:

2014

Wydawca:

Polska Akademia Nauk. Instytut Agrofizyki PAN

Tematy:

forest ecosystem
carbon dioxide
source
growing season
weather condition
Norway spruce

Opis:

Net ecosystem production reflects the potential of the ecosystem to sequestrate atmospheric CO2. Daily net ecosystem production of a mountain Norway spruce forest of the temperate zone (Czech Republic) was determined using the eddy covariance method. Growing season days when the ecosystem was a CO2 source were examined with respect to current weather conditions. During the 2005, 2006, and 2007 growing seasons, there were 44, 65, and 39 days, respectively, when the forest was a net CO2 source. The current weather conditions associated with CO2 release during the growing seasons were: cool and overcast conditions at the beginning or end of the growing seasons characterized by a 3-year mean net ecosystem production of -7.2 kg C ha-1 day-1; overcast or/and rainy days (-23.1 kg C ha-1 day-1); partly cloudy and hot days (-11.8 kg C ha-1 day-1); and overcast and hot days (-13.5 kg C ha-1 day-1). CO2 release was the highest during the overcast or/and rainy conditions (84%, average from all years), which had the greatest impact during the major production periods. As forests are important CO2 sinks and more frequent weather extremes are expected due to climate change, it is important to predict future forest carbon balances to study the influence of heightened variability in climatic variables.

Źródło:

International Agrophysics; 2014, 28, 2
0236-8722

Pojawia się w:

International Agrophysics

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 37.

Tytuł:

Accumulation properties of Norway spruce (Picea abies) for different radionuclides

Autorzy:

Tomankiewicz, E.
Mietelski, J.
Gaca, P.
Błażej, S.

Powiązania:

https://bibliotekanauki.pl/articles/148612.pdf

Data publikacji:

2006

Wydawca:

Instytut Chemii i Techniki Jądrowej

Tematy:

137Cs
50Sr
thorium
spruce tree
Tatra Mts.
aggregation coefficients

Opis:

The paper presents results for the 137Cs, 90Sr, 40K activity concentrations and 228Th/232Th, 230Th/232Th activity ratios in several samples needles from two Norway spruce (Picea abies) trees and two soil samples collected in the Tatra Mountains (Poland) area. Activities for artificial 137Cs and 90Sr show moderate values. Statistically different values were found between the mean concentration of 90Sr and 137Cs in current (C) and two years old (C+2) needles of the first tree, whereas for potassium no significant difference was observed. For the second, fallen tree, no significant difference between the mean activity concentration in needles for C+1 and C+2 was found for each radionuclide, but much lower levels of 137Cs contamination were observed. Observed values of the aggregation coefficients for 137Cs and 90Sr are presented.

Źródło:

Nukleonika; 2006, 51,suppl.2; 59-67
0029-5922
1508-5791

Pojawia się w:

Nukleonika

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 38.

Tytuł:

Exogenous seed treatment with proline and its consequences to Norway spruce (Picea abies (L.) H. Karst) seedling establishment

Autorzy:

Kijowska-Oberc, J.
Wawrzyniak, M.K.
Staszak, A.M.
Ratajczak, E.

Powiązania:

https://bibliotekanauki.pl/articles/2130182.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

proline
seed treatment
Norway spruce
seedlings development
tree seeds
oxidative stress

Opis:

Accumulation of proline is a defense mechanism against external stress conditions, preventing damage to the structure and function of cells and improving plant development processes, such as germination. The purpose of this study was to investigate proline treatment as a means of improving the germination and development of Norway spruce seedlings. The effect of exogenous proline has been studied in three stages of initial plant development. The collected seeds were soaked in water or 8 mM proline solution and placed on the germinators. The germination capacity and the mean germination time were determined. Seedlings with radicles >10 mm were transferred to the sand-peat substrate at a constant temperature of 20 °C. Seedlings at 3 subsequent developmental stages (S1 – germinated seeds with radicles > 3 mm; S2 – seedlings with radicles >10 mm; S3 – established seedlings grown for 90 days) were examined for the oxygen consumption rate, total antioxidant capacity, hydrogen peroxide level, malondialdehyde level and intracellular proline content. Proline treatment was conducive to lowering the levels of hydrogen peroxide and malondialdehyde at stage S1. At the subsequent stages of development, the levels of hydrogen peroxide and malondialdehyde increased, and at the S3 stage, there was also a marked increase in total antioxidant capacity. At stage S3, the seedlings of the proline treatment were characterized by a lower total mass, and the response to exogenous proline was stronger in the root tissues than in the leaves. The oxygen consumption rate was higher for the proline treatment at all stages of development. Seedlings at the analyzed stages of establishment differed in response to proline treatment. Exogenous proline had some beneficial effects during the first phase of germination by reducing the level of hydrogen peroxide and improving the condition of lipid membranes. In the subsequent stages of seedling development, in response to the same concentration of proline solution, undesirable effects, such as an increase in hydrogen peroxide levels and damage to cytoplasmic membranes, were observed. Optimal concentrations of exogenous proline should be determined prior to commercial use of proline treatment to improve plant stress tolerance.

Źródło:

Dendrobiology; 2022, 87; 149-162
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 39.

Tytuł:

Changes in the spruce forests of the Polish Tatra Mts. during the last 80 years

Autorzy:

Kozłowska, A.

Powiązania:

https://bibliotekanauki.pl/articles/294585.pdf

Data publikacji:

2009

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

spruce forests
Polish Tatra Mts.
floristic changes during 80 years
vegetation typology

Opis:

On the basis of the historical (dating from the 1920s) and contemporary phytosociological relevés, taken in the spruce forests of the Polish Tatra Mts., the changes were determined that took place in these forests. This area had been for centuries under the influence of human economic activities, mainly pasturing and wood extraction, and then protected in the Tatra National Park. These changes differ according to the altitudinal vegetation belts. In the coniferous forests of the upper montane belt, the changes due to wind breaks or tree stand ageing did not lead to transition to other forest associations. A tendency can yet be noticed of losing a part of the species combinations characteristic for the associations or higher syntaxonomic units, which might be linked with the stopping of grazing in the forests and development of the undergrowth of tall herb character. The association of the fir-and-spruce forests in the lower montane belt displayed much bigger changes. There was an increase of the role of species of the deciduous forests, while the role of the coniferous forest species was limited in the studied patches, which clearly indicates the evolution of the forests towards the beech woods, typical for the lower montane belt. This means a progressing limitation of the spruce forests in the limestone Tatras to the advantage of return of the beech woodsdominated there in older time.

Źródło:

Landform Analysis; 2009, 10; 64-69
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 40.

Tytuł:

Determination of Pleurotus abieticola ligninolytic activity on norway spruce wood

Autorzy:

Żółciak, Anna

Powiązania:

https://bibliotekanauki.pl/articles/2041965.pdf

Data publikacji:

2019

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

laccase
lignin peroxidase
manganese peroxidase
versatile peroxidase
spruce
white rot fungus
wood

Opis:

The effect of Phlebiopsis gigantea treatment in control of Heterobasidion parviporum in Norway spruce is less effective than that in control of Heterobasidion annosum in pine. It is necessary to apply other fungi, for example, Pleurotus abieticola in Norway spruce stands. Thus, it is necessary to assess the activity of major ligninolytic enzymes, that is, laccase, lignin peroxidase (LiP), manganese peroxidase (MnP) and versatile peroxidase (VP) produced by P. abieticola, which may be effective in the fast degradation of Norway spruce wood. Three strains of P. abieticola (Pa1-3) were grown on pieces of Norway spruce sapwood and heartwood for 50 days in laboratory conditions. Enzymatic activity was determined using spectrophotometry. Pleurotus abieticola produced laccase, LiP, MnP and VP. The activity of laccase was low, ranging 0–3.696 and 0–0.806 mU/μg of protein in sapwood and heartwood, respectively. The highest activity in Pa1 = 3.696 mU/μg of protein in sapwood and in Pa3 = 0.806 mU/μg of protein in heartwood was observed after 30 and 50 days of incubation, respectively. The activity of LiP was also low, ranging 0–0.188 and 0–0.271 mU/μg of protein in sapwood and heartwood, respectively. The highest activity in Pa1 = 0.271 mU/μg of protein in sapwood and in Pa2 = 0.188 mU/μg of protein in heartwood was observed after 40 and 20 days of incubation, respectively. The activity of MnP ranged 0–17.618 and 0–12.203 mU/μg of protein in sapwood and heartwood, respectively. This enzymatic activity peaked at the 50th day of culture on sapwood for the Pa3 strain (17.618 mU/μg of protein) and at the 20th day of culture on heartwood for the Pa1 strain (12.203 mU/μg of protein). The activity of VP with manganese-oxidising properties was found to be high in all strains of P. abieticola, ranging 0–39.19 and 0–59.153 mU/μg of protein in sapwood and heartwood, respectively, whereas the activity of VP with guaiacol-oxidising properties was very low for all P. abieticola strains, ranging 0–0.248 and 0–0.225 mU/μg of protein in sapwood and heartwood, respectively. The values of released hydroxyphenols in P. abieticola strains ranged 24.915–139.766 and 25.19–84.562 µg of protocatechuic acid/ml in sapwood and heartwood, respectively. The values of released methoxyphenols for the evaluated strains of P. abieticola ranged 7.225–23.789 and 1.953–20.651 µg of vanillic acid/ml in sapwood and heartwood, respectively. Further studies with a higher number of strains of this species as well as an optimisation of conditions for the measurement of ligninolytic activity are needed.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 4; 267-277
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 41.

Tytuł:

Needles and bark of Picea abies (L.) H. Karst and Picea omorika (Pancic) Purk. as bioindicators of environmental quality

Autorzy:

Parzych, Agnieszka
Mochnacky, Sergej
Sobisz, Zbigniew
Polláková, Nora
Šimanský, Vladimír

Powiązania:

https://bibliotekanauki.pl/articles/2045720.pdf

Data publikacji:

2018

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

accumulation
heavy metals
needle age class
nutrients
N:P
K:Ca
spruce

Opis:

The paper presents the results of the research on the accumulation of nutrients and heavy metals in needles and bark of Picea abies and Picea omorika. In this research, the age of the needles and the content of the examined components in the soil were taken into account. The research was conducted within the area of the forest at the University botanic garden in Košice (Slovakia). The little acidification of the soil that was found under the spruce crowns slightly changed with the depth (0.0–0.2 m, 0.2–0.4 m, 0.4–0.6 m). Under the stand of P. abies, a lower content of organic matter was demonstrated, than under the trees of P. omorika. The tested soil samples were low in nitrogen, phosphorus and calcium, and sufficiently rich in potassium and magnesium. The spruce needles were dominated by macroelements, and their concentrations varied depending on age and species. Both P. abies and P. omorika needles were acidic, with 1-year-old needles showing higher acidity. Low nitrogen content in the needles of the studied spruce was found, and the N:P ratio did not exceed 3.5. Statistically significant differences were found in the content of N, K, Ca, Zn, Mn, Fe, Ni, Cu and Cd in 1-year-old needles and pH, N, P, Ca, Zn, Mn, Fe, Ni, Cu and Cd in 2-yearold needles of spruces. The results also indicate that the bark of the studied spruce is acidic, with pH values of 4.70 (P. abies) and 4.15 (P. omorika). The P. abies bark accumulates higher amounts of Mg, Ca, Ni, Cu and Mn, and the P. omorika bark accumulates more N, P, K, Zn, Fe and Cd. The research indicates that both spruce species barks are suitable for comparative studies on bioindication of environment quality.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2018, 60, 4; 230-240
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 42.

Tytuł:

Nutrient characteristics and proline accumulation in relation to Picea abies status on drained peat soils

Autorzy:

Cekstere, G.
Osvalde, A.
Snepsts, G.
Laivins, M.

Powiązania:

https://bibliotekanauki.pl/articles/2078188.pdf

Data publikacji:

2020

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
crown status
soil and foliar analysis
proline
sub-boreal zone

Opis:

Monocultures of Norway spruce widely used for afforestation of drained peat soils often have low productivity and decline in vitality. The research aim was to elucidate: (1) imbalances in the nutrient status of soil and plants in relation to Norway spruce crown status and annual increment on drained peat soil in the sub-boreal zone; (2) the suitability of using proline accumulation as a biomarker for Norway spruce vitality and stress in nutrient imbalance conditions. The study was conducted at five forest (Oxalidosa turf. mel.) sites in Latvia, each containing trees with different crown condition status. Chemical analyses of soil and spruce needles, assessment of tree crown vitality and annual increment measurements were done. Our results revealed serious disturbances in the supply of nutrients, which is an important factor in the decline of Norway spruce in monoculture stands on drained peat soils. Deficiency of K, Fe, Cu, B, N and P was found in the current year needles for all trees, but in damaged trees (≥61% defoliation, ≥61% discoloration) Zn deficiency was also found. For 2-year-old needles, deficiency of K, P, S, Zn, and Cu was found in all trees, additionally, deficiency of Fe was found in healthy and medium damaged trees (26–60% defoliation, 21–60% discoloration), and N deficiency was found for medium damaged and damaged trees. Thus, K, Cu, B, Fe concentrations had significant negative correlations with crown status parameters – defoliation, discoloration, and density. K and B deficiency could play the most significant causal role in decreased stem increment. The results revealed that the stress amino-acid proline is a reliable biomarker, having a significant relationship with spruce crown condition parameters, annual increment and nutrient status in needles – low levels of K, Fe, S, Cu, B, N. The increase in proline content in spruce needles was pronounced in moderately damaged trees, indicating the potential for the use of proline accumulation as early stress indicator for spruce. Therefore, further studies on the identification of early stress and factors affecting nutrient uptake and accumulation in needles are particularly valuable for evaluation of stand management options before significant decline of spruce stands.

Źródło:

Dendrobiology; 2020, 84; 94-108
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 43.

Tytuł:

Strip road impact on selected wood defects of Norway spruce (Picea abies (L.) H. Karst)
Wpływ szlaków operacyjnych na wybrane wady drewna świerka pospolitego (Picea Abies (L.) H. Krast)

Autorzy:

Bembenek, M.
Giefing, D.F.
Karaszewski, Z.
Lacka, A.
Mederski, P.S.

Powiązania:

https://bibliotekanauki.pl/articles/52478.pdf

Data publikacji:

2013

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna

Tematy:

strip road
wood defect
wood quality
Norway spruce
Picea abies
thinning operation

Opis:

Creating strip roads in second age class stands is an indispensible operation for carrying out thinning. It is especially important in places where there is an intention to do a first thinning using mechanised thinning operations. Felling trees to create strip roads results in altered conditions for the tree growth of neighbouring trees.In particular, this is due to an increase in exposure to sunlight. This can lead to changes in the growth of trees and consequently changes in the morphology of the trunk and the development of defects. The objective of this paper was to analyse the frequency of the presence of particular defects in the structure and shape of spruce ina five-year period after the creation of a strip road. The research was carried out in an artificially regenerated spruce stand within the spruce’s natural, northern habitat in Poland. A 34-year-old stand underwent a systematic thinning scheme which involved the removal of every eighth tree row. The analysis was carried out on trees growing both adjacent to the strip roads (which had a greater growing area around them and greater access to sunlight) as well as trees from further within the stand. Diameter growth was taken in three places: at breast height, in the middle of the trunk between breast height and the base of the crown, as well as at the base of the crown. The average incremental growth, pith eccentricity taper and ovality were calculated. No statistically significant difference in defects between the trees growing by the strip road and those growing further in the stand was observed. Greater taper on mid-tree logs in comparison to butt logs was observed. Insignificant changes in the morphology of the trunks, supports the validity of cutting strip roads in second age class stands.
Zakładanie szlaków operacyjnych staje się niezbędne przy stosowaniu współczesnych technologii w gospodarce leśnej. Ich obecność to również zwiększony dostęp do światła dla drzew rosnących na ich skraju, co z kolei może wpływać na różnice we wzroście tych drzew w porównaniu z drzewami wewnątrz drzewostanu. Celem pracy była analiza częstości występowania niektórych wad budowy i kształtu mogących wpływać na jakość surowca drzewnego w 5 lat po wykonaniu zabiegu. Drzewostan świerkowy w wieku 34 lat został poddany trzebieży schematycznej poprzez wycięcie co 8. rzędu drzew. Analizie poddano drzewa rosnące przy szlaku PS (z asymetrycznie większymi stoiskami i dostępem do światła) oraz drzewa wewnątrz drzewostanu ( WD 5–10 m od osi szlaku). Badano przyrosty na wysokości pierśnicy, w połowie długości między pierśnicą a podstawą korony i u podstawy korony oraz obliczono przeciętny przyrost, mimośrodowość rdzenia i zbieżystość. Nie zaobserwowano występowania statystycznie istotnych różnic pomiędzy analizowanymi cechami drzew PS i WD, jednakże u drzew rosnących PS zaobserwowano istotnie większą zbieżystość kłód środkowych w porównaniu z odziomkowymi. W krótkim okresie(5 lat) po założeniu szlaków w drzewostanie świerkowym II klasy wieku nie stwierdzono zatem statystycznie istotnych różnic w morfologii pni drzew rosnących przy szlaku i w drzewostanie. Niemniej jednak zaobserwowano: 1) tendencje do zwiększonych przyrostów u drzew PS (szczególnie w połowie pnia) w 5. roku po wykonaniu zabiegu oraz 2)wzrost zbieżystości kłód środkowych wyrobionych z drzew PS. Wyniki te sugerują przeprowadzenie podobnych badań w dłuższym odstępie czasowym (niż 5-letni)od założenia szlaków.

Źródło:

Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2013, 56, 190
1644-3985

Pojawia się w:

Drewno. Prace Naukowe. Doniesienia. Komunikaty

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 44.

Tytuł:

From studies on possibility of protecting blue spruce (Picea pungens Engelm.) against fungi. Part II. Laboratory assessment of antifungal activity of selected essential oils
Z badań nad możliwością ochrony świerka kłującego (Picea pungens Engelm.) przed grzybami. Część II. Laboratoryjna ocena skuteczności grzybobójczej wybranych olejków eterycznych

Autorzy:

Bartyńska, M.
Mirski, W.

Powiązania:

https://bibliotekanauki.pl/articles/11541668.pdf

Data publikacji:

2007

Wydawca:

Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie

Tematy:

essential oil
antifungal activity
control
fungi
plant protection
Picea pungens
blue spruce

Opis:

The antifungal properties of selected essential oils, i.e. lavender, mint, orange, spruce and thyme oils, were checked in vitro to fungi isolated from blue spruce (Picea pungens Engelm.) and its cultivar ‘Glauca’. The degree and extent of antifungal activity for essential oils listed above were tested on the following fungi: Acremonium tubakii, Anthostomella conorum, Arthrinium state of Apiospora montagnei, Aureobasidium pullulans, Botryodiplodia rubi, Fusarium camptoceras, F. moniliforme var. lactis, Penicillium canescens, Phoma pomorum, Rhizosphaera kalkhoffii, Ulocladium consortiale and Zythiostroma pinastri. Among essential oils tested the thyme oil showed the highest antifungal activity to all fungi under examination even at the lowest concentration used. The mint, lavender and spruce oils demonstrated a medium activity. The lowest activity was found for orange oil.
W warunkach in vitro badano właściwości grzybobójcze wybranych olejków eterycznych, tj. lawendowego, miętowego, pomarańczowego, świerkowego i tymiankowego, w stosunku do grzybów wyizolowanych z roślin świerka kłującego (Picea pungens Engelm.) i jego odmiany ‘Glauca’. Stopień i zakres działania grzybobójczego wyżej wymienionych olejków przetestowano na grzybach: Acremonium tubakii, Anthostomella conorum, Arthrinium state of Apiospora montagnei, Aureobasidium pullulans, Botryodiplodia rubi, Fusarium camptoceras, F. moniliforme var. lactis, Penicillium canescens, Phoma pomorum, Rhizosphaera kalkhoffii, Ulocladium consortiale i Zythiostroma pinastri. Wśród przebadanych olejków eterycznych bardzo wysoką aktywnością odznaczał się olejek tymiankowy, bo już przy najniższym zastosowanym stężeniu i w stosunku do wszystkich testowanych gatunków grzybów. Średnią aktywność grzybobójczą wykazały olejki: miętowy, lawendowy i świerkowy. Najmniej skuteczny okazał się olejek pomarańczowy.

Źródło:

Acta Scientiarum Polonorum. Hortorum Cultus; 2007, 06, 4; 33-44
1644-0692

Pojawia się w:

Acta Scientiarum Polonorum. Hortorum Cultus

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 45.

Tytuł:

Assessment of the height growth of Picea abies as related to the geographical regions of Krutzsch (IPTNS-IUFRO 1964-68, years 1969-1988)

Autorzy:

Sabor, J
Stanuch, H.

Powiązania:

https://bibliotekanauki.pl/articles/41503.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
provenance
genetic reactivity
selection value
height growth
geographic region
Beskid Sadecki Mountains
plant population
spruce
species range

Opis:

The juvenile height growth of Norway spruce (Picea abies (L.) Karst.) was studied in 1095 spruce provenances included in the IUFRO inventory provenance test of 1964/68. Trees growing on the experimental site established in Krynica in the Beskid Sądecki Mts. (Carpathians) were measured at ca. 3-year intervals in the period 1969-1988, from the age of 6 years (i.e. 2 years of planting) to 25 years. The variability of tree height in this spruce population was assessed on the basis of the means expressed in units of standard deviation, calculated for each provenance and each geographical region of Krutzsch in successive years of measurement. Using the standardised units made it possible to characterise the dynamics of spruce growth in provenances from 95 geographical regions representing the whole European range of the species. The effects of geographical region, tree age and their interaction on the variability of height growth within this range were estimated using multi-way analysis of variance with replicated measurements. The regions showing similar spruce growth trends were grouped by using hierarchical cluster analysis. The results on the juvenile dynamics of height growth showed that spruce provenances from various geographical regions of Krutzsch differ significantly in their genetic reactivity. Based on this, several groups of regions were identified: (1) regions with average or weak but stable spruce growth characterised by no significant effects of age or genotype × age interaction in the whole measuring period, or regions with height growth improving with age; (2) regions of spruce provenances constituting a selection elite, with very good height growth in the whole measuring period or in its later part, characterised by no G × A interaction; (3) regions with varied genetic reactivity of height growth dynamics in the juvenile period, and regions of Scandinavian populations with poorest height growth in the whole measuring period. The studies proved that spruce provenances from the regions of Štiavnické Pohorie, Low Tatras (Slovakia), Masurian Lakeland, Augustów Lakeland, Podlasie, Silesian Beskid Mts., Beskid Żywiecki Mts. (Poland), Jutland (Denmark), Bihor Mts., Transylvania, and Eastern Carpathians (Romania) have a high selection value.

Źródło:

Dendrobiology; 2009, 61 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 46.

Tytuł:

Potencjał rodzimych iglastych gatunków drzew leśnych w uprawach agroleśnych
The potential of national conifferent forest trees species in agro forest cultivations

Autorzy:

Baranowska, Marlena
Kobus-Cisowska, Joanna

Powiązania:

https://bibliotekanauki.pl/articles/26731664.pdf

Data publikacji:

2023-11-22

Wydawca:

Centrum Doradztwa Rolniczego w Brwinowie. Oddział w Poznaniu

Tematy:

systemy alejowe
sosna
świerk
jodła
jałowiec
alley systems
pine
spruce
fir
juniper

Opis:

Agroleśnictwo to rodzaj upraw integrujący uprawy rolne z drzewami i jest sposobem gospodarowania ziemią, w którym produkcja roślinna i zwierzęca współistnieje na tym samym obszarze z roślinnością drzewiastą i/lub krzewami. Agroleśnictwo sprzyja efektywnemu wykorzystaniu zasobów glebowych i środowiskowych w porównaniu z uprawą monokulturową. Integracja drzew w uprawie rolniczej poprawa żyzność i właściwości fizyczne, biologiczne i chemiczne gleby, a w konsekwencji żywności, drewna i paszy. Taka uprawa sprzyja odpowiedniemu mikroklimatowi wpływając na właściwości i wilgotność gleby. Integracja drzew na gruntach rolnych zapewnia dodatkowe korzyści dla klimatu i środowiska, dlatego może stanowić opłacalną i przyjazną praktykę. W artykule wskazano rodzime gatunki iglastych drzew leśnych, które potencjalnie mogłyby stanowić element upraw agroleśnych z uwzględnieniem ich wykorzystania w żywności funkcjonalnej.
Agroforestry is a type of farming that integrates agricultural crops with trees, and is a way of managing the land in which crop and livestock production coexist in the same area with woody plants and/or shrubs. Agroforestry promotes efficient use of soil and environmental resources compared to monoculture farming. The integration of trees in agroforestry improves the fertility and physical, biological and chemical properties of the soil, and consequently food, timber and fodder. Such cultivation promotes an appropriate microclimate by influencing soil properties and moisture content. Integration of trees on agricultural land provides additional climate and environmental benefits and can be a cost-effective and climate-friendly practice. The article identifies native coniferous forest tree species that could potentially be part of agroforestry crops with a view to their use in functional foods.

Źródło:

Zagadnienia Doradztwa Rolniczego; 2023, 113, 3; 50-67
1232-3578
2719-8901

Pojawia się w:

Zagadnienia Doradztwa Rolniczego

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 47.

Tytuł:

Treatment of bark beetle attacked trees with entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin

Autorzy:

Jakus, R.
Blazenec, M.

Powiązania:

https://bibliotekanauki.pl/articles/38427.pdf

Data publikacji:

2011

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

bark beetle
attacked tree
entomopathogenic fungi
Beauveria bassiana
Ips typographus
Norway spruce

Opis:

We carried out an experiment with using the entomopathogenic fungus Beauveria bassiana (Bals.) Vuill. for sanitation of active infested trees. We used 15 active infested trees from which 5 stems were treated with an insecticide, 5 were treated with solution of the tested entomopathogenic fungus and 5 were left as control. The used insecticide was pyretroid Fury 10 EW. We used a biopreparation based on the entomopathogenic fungus B. bassiana in form of wettable powder. The material was diluted. The suspension contained 107spores of the tested entomopathogenic fungus in 1 ml. The suspension was applied across the whole stem surface. We succeeded to infect about 28.75% of Ips typographus L. individuals in the treated stems. The number of live individuals was comparable with the variant using the insecticide.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 48.

Tytuł:

Testing of the fatigue strength along wood fibres at different moisture contents

Autorzy:

Dobrowolska, Ewa
Niedbała, Mateusz
Tabaczyński, Daniel

Powiązania:

https://bibliotekanauki.pl/articles/2154060.pdf

Data publikacji:

2021

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

fatigue strength
moisture contents
simplified method for testing
oak
birch
Norway spruce

Opis:

Testing of the fatigue strength along wood fibres at different moisture contents. The paper determines the effect of wood moisture content on the fatigue strength in compression along fibres. The method of determining the maximum stress at the proportional limit was used for the measurements. Fatigue strength was investigated for three wood species: pedunculate oak (Quercus robur L.), bearded birch (Betula pendula Roth.) and Norway spruce (Picea abies L.), with two moisture contents: close to the absolutely dry state and above the fibre saturation point. The ratio of fatigue strength to short term strength depends on moisture content and is similar for birch (70.3% in the dry state and 72.1% in the wet state), for oak (67.4% and 69.5% in both states) and for spruce (66.6% in the dry state and 68.1% in the wet state). The moisture content of the wood clearly influences the fatigue strength of the wood. On average, the fatigue strength of wood with moisture contents above the fibre saturation point constitutes about 0.20 of the fatigue strength of wood with moisture contents close to 0%. This tendency was found regardless of the tested species. The simplified method for testing fatigue strength at the limit of proportionality has shown its limited usefulness, requiring further analysis and comparison with other methods in order to be thoroughly tested and possibly improved.
Badanie wytrzymałości zmęczeniowej wzdłuż włókien drewna przy różnej wilgotności. W pracy określono wpływ wilgotności drewna na wytrzymałość zmęczeniową przy ściskaniu wzdłuż włókien. Do pomiarów wykorzystano metodę wyznaczania maksymalnego naprężenia na granicy proporcjonalności. Wytrzymałość zmęczeniową zbadano dla trzech gatunków drewna: dębu szypułkowego (Quercus robur L.), brzozy brodawkowatej (Betula pendula Roth.) i świerka pospolitego (Picea abies L.), o dwóch wilgotnościach: zbliżonej do stanu absolutnie suchego i powyżej punkt nasycenia włókien. Stosunek wytrzymałości zmęczeniowej do wytrzymałości chwilowej zależy od zawartości wilgoci i jest podobny dla brzozy (70,3% w stanie suchym i 72,1% w stanie mokrym), dębu (67,4% i 69,5% w obu stanach) oraz świerka (66,6 % w stanie suchym i 68,1% w stanie mokrym). Zawartość wilgoci w drewnie wyraźnie wpływa na wielkość wytrzymałości zmęczeniowej drewna. Średnio wytrzymałość zmęczeniowa drewna o wilgotności powyżej punktu nasycenia włókien stanowi 0,20 wytrzymałości drewna o wilgotności bliskiej 0%. Tendencję tę stwierdzono niezależnie od badanego gatunku. Uproszczona metoda badania wytrzymałości zmęczeniowej na granicy proporcjonalności wykazała swoją ograniczoną przydatność, wymagającą dalszej analizy i porównania z innymi metodami w celu dokładnego przetestowania i ewentualnego udoskonalenia.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2021, 115; 45--54
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Extracting Galactoglucomannans (GGMs) from Polish Softwood Varieties
Wyodrębnianie galaktoglukomannanów (GGM) z krajowych odmian drzew iglastych

Autorzy:

Kopania, E.
Milczarek, S.
Bloda, A.
Wietecha, J.
Wawro, D.

Powiązania:

https://bibliotekanauki.pl/articles/231851.pdf

Data publikacji:

2012

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Biopolimerów i Włókien Chemicznych

Tematy:

spruce
larch
galactoglucomannans
thermal treatment
enzymatic treatment
świerk
modrzew
obróbka cieplna
obróbka enzymatyczna

Opis:

The article presents a method of extracting galactoglucomannans from conifers: spruce and larch. Galactoglucomannans (GGMs) were extracted from shavings of Polish varieties of spruce and larch, using thermal and enzymatic treatment in an aqueous environment. The composition of the extracted GGMs (depending on the extraction method) was characterized by varied content of individual monosaccharides, i.e. glucose, galactose and mannose, as well as the average particle mass. The quantitative and qualitative composition of the extracted GGMs is an important factor affecting the possibility of their wide employment in modifying cellulose fibre-containing materials in order to improve their barrier qualities, and as biological agents in plant health products. GC/MS and SEC chromatographic tests and 13C NMR analysis made it possible to establish the composition and structural changes of the acquired GGMs.
W artykule przedstawiono sposób wyodrębniania galaktoglukomannanów z drzew iglastych: świerku i modrzewia. Galaktoglukomannany (GGM) wyodrębniono z trocin drzewnych krajowych odmian świerku i modrzewia z zastosowaniem obróbki termicznej i enzymatycznej w środowisku wodnym. Wyodrębnione GGM (w zależności od metody wyodrębniania) charakteryzowały się zróżnicowanym składem pod względem zawartości poszczególnych cukrów prostych tj. glukozy, galaktozy i mannozy oraz wartością średniej masy cząsteczkowej. Skład ilościowy i jakościowy wyodrębnionych GGM jest istotnym elementem wpływającym na możliwość ich szerokiego zastosowania do modyfikacji materiałów zawierających włókna celulozowe w celu polepszenia ich właściwości barierowych oraz jako czynniki czynników biologicznych dla środków ochrony roślin. Badania z wykorzystaniem chromatografii GC/MS, SEC oraz analiza 13C NMR pozwoliły ocenić skład i zmiany strukturalne otrzymanych GGM.

Źródło:

Fibres & Textiles in Eastern Europe; 2012, 6B (96); 160-166
1230-3666
2300-7354

Pojawia się w:

Fibres & Textiles in Eastern Europe

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

Radial variation of mechanical properties of spruce wood (Picea abies L.) in tension along the grain

Autorzy:

Roszyk, E.
Molinski, W.
Fabisiak, E.
Cunderlik, I.

Powiązania:

https://bibliotekanauki.pl/articles/30016.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

mechanical property
spruce wood
wood
Picea abies
tension
grain
elasticity
specific strength
strength

Źródło:

Folia Forestalia Polonica. Series B - Drzewnictwo; 2010, 41
0071-6685

Pojawia się w:

Folia Forestalia Polonica. Series B - Drzewnictwo

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

Accelerated and natural ageing processes change the properties of plasma membrane in Norway spruce (Picea abies (L.) Karst.) seeds during storage

Autorzy:

Nowakowska, J
Rakowski, K.

Powiązania:

https://bibliotekanauki.pl/articles/41613.pdf

Data publikacji:

2002

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

plasma membrane
Norway spruce
natural aging process
Picea abies
vitality
vigor
storage
seed

Opis:

The present study examines the mechanism of natural and accelerated ageing processes in Norway spruce (Picea abies [L.] Karst.) seeds stored at low temperature for one (control) and eight years. The analyses of vitality, electrolyte leakage, protein composition and activity of the proton-pump ATPase (P-ATPase, EC.3.6.1.35) in plasma membrane of Norway spruce seeds have been investigated. Seeds collected in 1999 from northeastern Poland have been treated with accelerated ageing method and compared to the seeds of the same provenance, collected in 1992 (control). The vigor and the vitality of the Norway spruce seeds depend on the age of seeds. After 6 days of experiment both samples of seeds (artificially aged seeds and control) expressed the same percentage of germination and similar electrolyte leakage. Analysis of protein composition in the extracts showed an increased amount of some low molecular-weight proteins in artificially and naturally aged seeds compared to the control. Our results indicate similar level of P-ATPase activity in natural, artificially aged and control seeds. This suggests that natural ageing process can involve changes in plasma membrane protein composition but does not affect the P-ATPase activity.

Źródło:

Dendrobiology; 2002, 47 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

Re-use of the 20th century aviation infrastructure
Adaptacje XX-wiecznej infrastruktury lotniskowej

Autorzy:

Szuta, Agnieszka Faustyna

Powiązania:

https://bibliotekanauki.pl/articles/369263.pdf

Data publikacji:

2020

Wydawca:

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie

Tematy:

adaptation
adaptive re-use
airport
architecture
Kraków - Rakowice
Google Spruce
Goose Hangar
Johannisthal
Le Bourget
Longhua Aviation Harbor
adaptacje
architektura
lotniska
dziedzictwo techniki
Kraków – Rakowice
Google Spruce Goose Hangar

Opis:

This article explores issues related to the adaptation of former aviation infrastructure. For research purposes, several adaptations of former airports and airplane hangars are selected and presented. Those examples show the importance of this infrastructure in today's urbanized landscape, as well as in history, and thus the social and cultural values it brings. The benefits of the redevelopment of former airport sites are also presented.
W niniejszym artykule poruszone zostają kwestie związane z adaptacjami dawnej infrastruktury lotniskowej. W celach badawczych z grupy opuszczonych lotnisk wybrano i przeanalizowano kilka zaadaptowanych obiektów. Wyselekcjonowane przykłady pozwoliły na przedstawienie istotnej roli XX-wiecznej infrastruktury lotniskowej w dzisiejszym krajobrazie zurbanizowanym oraz jej wartości społeczne i kulturowe. Ukazano również zalety ponownego wykorzystania dawnych terenów lotniczych i znajdujących się tam obiektów.

Źródło:

Przestrzeń i Forma; 2020, 42; 99-116
1895-3247
2391-7725

Pojawia się w:

Przestrzeń i Forma

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 53.

Tytuł:

Breeding programmes of Norway spruce Picea abies (L.) Karst. in the Czech Republic

Autorzy:

Hynek, V

Powiązania:

https://bibliotekanauki.pl/articles/41747.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Czech Republic
forest tree
Norway spruce
Picea abies
breeding programme
altitudinal vegetation zone

Opis:

In the Czech Republic, Norway spruce has a natural representation in all forest altitudinal vegetation zones, in some of which (FAVZ 1, 2 and 9), however, it is scarce. The three basic climatic ecotypes of spruce identified in the Czech territory, i.e. an upland ecotype, a higher elevation ecotype and a mountain ecotype, can be characterised on the basis of the forest altitudinal vegetation zones of their origin. The paper presents the breeding work completed so far and all the breeding programmes implemented for Norway spruce, including projects worked out for the Krkonoše National Park.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 54.

Tytuł:

Przebudowa lasów nizinnych w Polsce
Conversion of Lowland Forests in Poland

Autorzy:

Miś, R.
Rączka, G.

Powiązania:

https://bibliotekanauki.pl/articles/1023889.pdf

Data publikacji:

2004

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

Polska
przebudowa drzewostanow
lesnictwo
lasy nizinne
conversion of forests
pine and spruce stands

Opis:

The paper contains general results of the searches which have been done on different experimental plots situated in the Polish Lowland. The searches were realised by the Department of Forest Management, Agricultural University in Poznan, Poland in the years 1953−2003. Results of theese investigations are connected with conversion of pine and spruce stands growing on oak, beech and fir sites.

Źródło:

Sylwan; 2004, 148, 01; 19-32
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 55.

Tytuł:

Laccase treatment of Norway spruce wood surface improves resistance and copper fixation of treated wood

Autorzy:

Vaukner Gabric, M.
Boncina, T.
Humar, M.
Pohleven, F.

Powiązania:

https://bibliotekanauki.pl/articles/52295.pdf

Data publikacji:

2016

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna

Tematy:

laccase
treatment
Norway spruce
Trametes versicolor
wood surface
wood decay
resistance
copper leaching

Źródło:

Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2016, 59, 198
1644-3985

Pojawia się w:

Drewno. Prace Naukowe. Doniesienia. Komunikaty

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 56.

Tytuł:

The effect of stand origin on the wood structure of Norway spruce

Autorzy:

Michalec, Krzysztof
Wąsik, Radosław
Barszcz, Anna
Sowa, Janusz M.

Powiązania:

https://bibliotekanauki.pl/articles/2010886.pdf

Data publikacji:

2020

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna

Tematy:

annual ring width
latewood share
north-eastern Norway spruce range
south-western range

Opis:

A study was carried out to compare the annual ring width, latewood share and density of spruce wood from the north eastern a nd south w estern ranges of Norway spruce. Twelve trial plots were located in the north eastern range, while within the south w estern range eight trial plots were established in the Sudeten Mountains and twelve trial plots in the Carpathian Mountains. On ev ery trial plot fifteen spruce trees were chosen, from which increment cores were sampled using a Pressler borer. Next, the increment cores had their surfaces smoothed and measurements were made of the width of annual rings, latewood zones and the share of latewood. Then the cores were divided into 2 cm sections, for which the relative wood density was determined. The analyses indicate that annual rings were wider in trees growing within the north eastern range than in those from the south western range an d the Kruskal Wallis test showed the differences to be statistically significant. T he latewood share followed an opposite pattern: t he wood from the Mazury region had a higher proportion of latewood than the wood from the mountainous areas and the statist ical test again indicated that the differences were significant. The analys i s of wood density showed slight differences between the density of wood from the north eastern and south western ranges, but in this case the Kruskal Wallis test showed the differe nces to be statistically insignificant.

Źródło:

Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2020, 63, 206; 137-146
1644-3985

Pojawia się w:

Drewno. Prace Naukowe. Doniesienia. Komunikaty

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 57.

Tytuł:

Calibration of ultrasound tester delay time by cutting a wooden beam

Autorzy:

Karwat, Zbigniew
Rousek, Miroslav

Powiązania:

https://bibliotekanauki.pl/articles/2200177.pdf

Data publikacji:

2020

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

ultrasonic
velocity
wave
wood
time delay
calibration
Norway spruce
Scots pine
sycamore wood

Opis:

Obtaining precise and reliable test results requires specific tools on one hand, and at the same time, reliability of the results should not be questioned. One of the necessary steps to achieve this goal is the calibration of the measuring device before the test. This article describes an experiment involving calibration of the device by an independent method called cutting beam calibration carried out on the ultrasonic material tester UMT 01. The standard calibration of this device is carried out by using a dedicated metal disc as a template. Calibration of the tester consisted of determining the time delay of the measured signal. The obtained results were used to prepare charts and to determine of signal time delay, called correction, which also allowed determining the velocity of ultrasonic wave in the tested material in three ways. The experiment was conducted on samples of three species of wood: Norway spruce, Scots pine and sycamore. The velocity of ultrasonic wave from research was compared with literature data.
Kalibracja ultradźwiękowego testera materiałów przy pomocy przycinanej belki drewnianej. Celem badań było sprawdzenie kalibracji ultradźwiękowego testera materiałów UMT 01 bez użycia wzorca fabrycznego. Sprawdzenie to polegało na pomiarach całkowitych czasów przebiegu sygnału w skracanych próbkach. Skracanie próbek odbywało się naprzemiennie i równomierne odcinanie jej końców. Badania przeprowadzono z użyciem ultradźwięków przy zastosowaniu impulsowego trybu pracy testera. Kalibracja została przeprowadzona na trzech gatunkach drewna: sosny zwyczajnej, świerka pospolitego i klonu jaworu. Wyniki pomiarów poddano analizie. Ustalono, iż proponowana niezależna metoda kalibracji jest zgodna i równie dokładna jak kalibracja wzorcem dedykowanym. Równocześnie badania te potwierdziły, iż używanie poliakrylowego żelu ultrasonograficznego podczas badań istotnie zwiększa precyzję pomiarów. Na mocy porównania wyników badań z danymi źródłowymi oraz dokładnego przeglądu literatury, można stwierdzić, iż w zagadnieniu ultrasonografii drewna zdarza się słabe doprecyzowanie rodzaju prędkości mierzonych fal (grupowej, fazowej, impulsowej). Uporządkowanie i rozstrzygnięcie rodzaju prędkości mierzonych, znacznie ułatwiłoby interpretację i metaanalizę danych z różnych prac.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2020, 110; 131--139
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 58.

Tytuł:

Czynniki uaktywniające i zróżnicowanie czasowe przemieszczeń koluwiów w różnych częściach stoku osuwiskowego : analiza dendrochronologiczna na przykładzie osuwiska Skalka (Moravskoslezské Beskydy)
Triggering factors and temporal variability of colluvium movements within a landslide slope : dendrochronological analysis at the example of Skalka landslide (Moravskoslezské Beskydy)

Autorzy:

Łuszczyńska, K.
Wistuba, M.

Powiązania:

https://bibliotekanauki.pl/articles/294801.pdf

Data publikacji:

2015

Wydawca:

Stowarzyszenie Geomorfologów Polskich

Tematy:

dendrochronologia
osuwanie
dekoncentryczność wzrostu
świerk pospolity
Moravskoslezské Beskydy
dendrochronology
landsliding
growth eccentricity
Norway spruce

Opis:

Celem badań było określenie zmienności czasowej osuwania i stwierdzenie różnic w aktywności poszczególnych części stoku osuwiskowego. Zastosowano metody dendrochronologiczne: dla 60 świerków pospolitych analizowano dekoncentryczność przyrostów rocznych. Największą dynamikę osuwania stwierdzono w latach: 1975, 1993, 1985, 1968–1969, 1995. Liczba zaburzeń wzrostu radialnego drewna świadczących o osuwaniu w poszczególnych latach dobrze odpowiada przebiegowi sum opadów półrocza letniego (np. osuwanie i opady w latach: 1968, 1972, 1975, 1977, 1985, 2010) oraz w mniejszym stopniu zimowego. Wyniki wskazują na nierównoczesną aktywność poszczególnych części osuwiska i uruchamianie różnych jego partii podczas różnych epizodów opadowych oraz prawdopodobnie w efekcie innych czynników uaktywniających (np. trzęsień ziemi z lat 1992–1993 o epicentrach w Beskidzie Sądeckim).
The aim of the study was to determine the temporal variability o landsliding and differences in the activity of individual part of a small landslide. Dendrochronological methods have been applied: tree-ring eccentricity was analysed for 60 Norway spruce trees. The most dynamic landsliding occurred in: 1975, 1993, 1985, 1968–1969 and 1995. The number of wood-growth disturbances recording landsliding in particular years matches well with precipitation totals for summer half-years (e.g. landsliding and precipitation in: 1968, 1972, 1975, 1977, 1985, 2010) and to the smaller degree with totals for winter half-years (e.g. 1961). Results indicate uneven activity of particular landslide sections. The movement in particular parts of the landslide is triggered during various precipitation events or due to other factors (e.g. 1992–1993 earthquakes with epicentres in Beskid Sądecki Mts).

Źródło:

Landform Analysis; 2015, 28; 103-113
1429-799X

Pojawia się w:

Landform Analysis

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 59.

Tytuł:

Wpływ prognozowanych warunków klimatycznych na stabilność drzewostanów świerkowych w Beskidzie Śląskim
The effect of predicted climatic conditions on the stability of spruce tree in the Beskid Śląski

Autorzy:

Durło, G. B.

Powiązania:

https://bibliotekanauki.pl/articles/338238.pdf

Data publikacji:

2012

Wydawca:

Instytut Technologiczno-Przyrodniczy

Tematy:

Beskid Śląski
biomasa
klimat
przyrost
świerk
biomass productivity
climate change
forest growth
Norway spruce

Opis:

W pracy przedstawiono parametry, określające możliwości adaptacji drzewostanów świerkowych do bieżących i prognozowanych warunków klimatycznych na obszarze leśnego kompleksu promocyjnego - Lasy Beskidu Śląskiego. W tym celu wykorzystano dane historyczne z wielolecia 1951-2010 oraz ciąg danych meteorologicznych, wygenerowanych za pomocą modelu WGEN_K [KUCHAR 2005; RICHARDSON, WRIGHT 1984) o horyzoncie czasowym 100 lat. Obliczenia przeprowadzono na podstawie dwóch scenariuszy stężenia CO₂ - 130% i 200%, korzystając z modelu klimatycznego GISS_E (SMITH, PITTS 1997). Opisano związek przyrostu miąższości świerka i produkcji biomasy z warunkami klimatycznymi. Na podstawie uzyskanych wyników sporządzono diagramy produkcyjności siedlisk dla świerka, zgodnie z normą klimatyczną 1951-2000 oraz według zaproponowanych scenariuszy na 2100 r.
The paper presents parameters estimating possible adaptation of the spruce tree stands to present and predicted climatic conditions in the Beskid Śląski Mts. The data come from measurements made in the years 1951-2010 at 25 meteorological stations and posts situated in the Beskid Śląski region. The aim of this study was to evaluate the effect of climate variability on the stability of a spruce stand in lower subalpine forest zone of the Beskid Śląski. The work includes studies on the possibility of adaptation of spruce forest to present and future climate in the Western Beskids. The study used historical data and a series of meteorological data generated with the model WGEN_K (KUCHAR 2005) of a time range of 100 years. Calculation procedure based on two scenarios of CO₂ concentration increase of 130% and 200% by the year 2050. The relationship between productive potential and biomass production of spruce stands and climatic conditions was described. Doubling the CO₂ concentration in the atmosphere, and a rise of mean air temperature to 9°C, at reduced rainfall in the summer time clearly resulted in the deterioration of productive conditions in lower subalpine mountain zone of the Beskid Śląski.

Źródło:

Woda-Środowisko-Obszary Wiejskie; 2012, 12, 2; 107-119
1642-8145

Pojawia się w:

Woda-Środowisko-Obszary Wiejskie

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 60.

Tytuł:

Using FORDRY model to forecast transformation of Norway spruce (Picea abies (L.) Karst.) stands in Nadsyansky Regional Landscape Park (Ukrainian Carpathians)

Autorzy:

Kozak, Ihor
Parpan, Taras
Shparyk, Yuriy
Mylenka, Myroslava
Kozak-Balaniuk, Iryna

Powiązania:

https://bibliotekanauki.pl/articles/2041033.pdf

Data publikacji:

2021

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

spruce forest decline
tree biomass
tree number
species composition
prediction
simulation experiment
gap model

Opis:

The aim of this study was to simulate transformation of species composition, biomass and number of treesin spruce stands depending on a possible combination of cutting and planting scenarios as well as climate changes. The FORDRY computer model was used to predict the dynamics of Norway spruce (Picea abies (L.) Karst.) stands in Nadsyansky Regional Landscape Park in the Ukrainian Carpathians. Potential changes in species composition, biomass and number of trees were forecasted for the next 50 years. Four scenarios, first – warm-dry, second – cutting dead spruce trees, third – cutting all trees andfourth – planting, were compared to the control one. The analysis revealed a rapid decrease of stand biomass in the first decade as a result of spruce decline. The model predicts an increase in beech biomass before the 50th year of simulation in all scenarios. In the planting scenario, the biomass of beech increased up to 199.9 ± 6.9 t·ha-1 in the 50th year. Correlation analysis showed weak autocorrelations of spruce and negative cross-correlations of spruce with the total stand in control and other scenarios. The output of performed simulations is supported with field and literature data. Results of this study can be applied in the long-term planning of the management and conservation activities in this region. The application of FORDRY model was found useful for analysing the potential scenarios of spruce stand transformation in Nadsyansky Regional Landscape Park.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 3; 183-194
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 61.

Tytuł:

The influence of drying on the sorption properties of polyethylene wax treated wood
Wpływ suszenia na właściwości sorpcyjne drewna impregnowanego woskiem polietylenowym

Autorzy:

Lesar, B.
Sever Skapin, A.
Humar, M.

Powiązania:

https://bibliotekanauki.pl/articles/52572.pdf

Data publikacji:

2011

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna

Tematy:

wood preservation
sorption property
polyethylene wax
wood drying process
beech
Norway spruce
water repellent

Opis:

The importance of the use of waxes in the wood industry has been increasing, particularly in Europe, since consumers, due to their increased environmental awareness, avoid using biocidally treated wood and wood from tropical forests. In this research two water-repellent emulsions in various concentrations were used: polyethylene and oxidised polyethylene wax emulsion. The performance of wax treated Norway spruce (Picea abies) and beech (Fagus sylvatica) wood was tested in two sorption experiments: conditioning in high relative air humidity (vapour diffusion) and non-continuous dipping (liquid flow). The sorption properties of oven and vacuum dried impregnated specimens were determined. During conditioning, wax treated Norway spruce specimens, vacuum and oven dried, had the same moisture content as control specimens; while treated vacuum dried beech had up to 25% lower moisture content than the parallel control specimens. An even higher difference was evident in volume changes of vacuum and oven dried beech specimens during the sorption test.
Znaczenie zastosowania wosków w przemyśle drzewnym rośnie, zwłaszcza w Europie, co spowodowane jest wzrostem świadomości ekologicznej, niechęcią konsumentów do używania drewna poddanego obróbce biocydami oraz drewna z lasów tropikalnych. W badaniach wykorzystano dwie emulsje wodoodporne o różnych stężeniach: polietylenową emulsję woskową i jej utlenioną wersję. Właściwości impregnowanego woskiem drewna świerka pospolitego (Picea abies) i drewna buka (Fagus sylvatica) zostały przebadane w trakcie badań sorpcji: klimatyzowania w warunkach wysokiej wilgotności względnej powietrza (dyfuzja pary) i przerywanego zanurzania (przepływ cieczy). Określono właściwości sorpcyjne impregnowanych próbek suszonych w suszarce i próżniowo. Podczas klimatyzowania próbki świerka pospolitego impregnowanego woskiem, suszone w suszarce i próżniowo, wykazały tę samą wilgotność, co próbki kontrolne. Impregnowane, wysuszone próżniowo drewno buka osiągnęło wilgotność do 25% niższą niż próbki kontrolne. Jeszcze większa różnica była widoczna w trakcie badania sorpcji w zakresie zmian objętości próbek buka suszonych w suszarce i próżniowo.

Źródło:

Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2011, 54, 185
1644-3985

Pojawia się w:

Drewno. Prace Naukowe. Doniesienia. Komunikaty

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 62.

Tytuł:

Removal of copper, zinc and iron from water solutions by spruce sawdust adsorption

Autorzy:

Kovacova, Zdenka
Demcak, Stefan
Balintova, Magdalena

Powiązania:

https://bibliotekanauki.pl/articles/95649.pdf

Data publikacji:

2019

Wydawca:

Fundacja Ekonomistów Środowiska i Zasobów Naturalnych

Tematy:

adsorption
model solution
spruce sawdust
heavy metal
adsorpcja
rozwiązanie modelowe
trociny świerkowe
metal ciężki

Opis:

The water pollution by toxic elements is one of the major problems threatening human health as well as the quality of the environment. Sorption is considered a cost-effective method that is able to effectively remove heavy metals. During past few years, researches have been researching usage of low-cost adsorbents like bark, lignin, chitosan peat moss and sawdust. This paper deals with the study of copper, zinc and iron adsorption by adsorption of spruce sawdust obtained as a by-product from locally used wood. Raw spruce sawdust was used to remove heavy metal ions from the model solutions with ion concentration of 10 mg/L during 24 hours or 5, 10, 15, 30, 45, 60, 120 min, respectively. Fourier-transform infrared spectroscopy was applied to determine functional groups of sawdust. Sorption efficiency was higher than 67% in short-time experiments and higher than 75% for one day experiments in all tested cations.

Źródło:

Ekonomia i Środowisko; 2019, 3; 64-74
0867-8898

Pojawia się w:

Ekonomia i Środowisko

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 63.

Tytuł:

Knottiness of spruce stems from the Dolomites as the basis for distinguishing quality zones in roundwood

Autorzy:

Barszcz, A.
Sandak, A.
Sandak, J.

Powiązania:

https://bibliotekanauki.pl/articles/38323.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

knottiness
Norway spruce
Picea abies
stem
Dolomites
quality zone
roundwood
knot category
knot zonation

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 64.

Tytuł:

Net radiation of mountain cultivated Norway spruce [Picea abies (L.) Karst.] stand: evaluation of short- and long-wave radiation ratio

Autorzy:

Markova, I.
Marek, M.V.

Powiązania:

https://bibliotekanauki.pl/articles/38453.pdf

Data publikacji:

2011

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

net radiation
mountain
cultivated plant
tree
Norway spruce
Picea abies
tree stand
radiation dose

Opis:

The radiation exchange drives the plant ecosystems energy balance and provides the energy for photosynthesis, transpiration and plant growth. The investigation on net radiation and its component during vegetation season in relation to the clearness index and sun elevation in a cultivated 31-year-old mountain spruce [Picea abies (L.) Karst.] stand is presented. Downward short-wave radiation – Sd (incident on the spruce stand was the main part of the short-wave radiation balance during the whole growing season (April–October) 2008. The Sd a mount i s seasonally variable factor determined by the duration of solar shine and the atmosphere transmissivity. Obtained value of net radiation (Rn) and downward short-wave radiation (Sd) ratio amounts to 0.61 on average during the growing season 2008 documenting the importance of the downward short-wave radiation in the net radiation of investigated spruce stand.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 65.

Tytuł:

Incidence of butt rot in Norway spruce seed stands in Polands mountain regions assessed with sonic tomography

Autorzy:

Chomicz, E.

Powiązania:

https://bibliotekanauki.pl/articles/38678.pdf

Data publikacji:

2013

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

Norway spruce
Picea abies
seed stand
stand age
Polska
mountain region
Picus sonic tomography

Opis:

The incidence and severity of butt rot were assessed in 12 selected Norway spruce seed stands in the Beskidy Mountains, Poland. A semi-invasive technique of sonic tomography was used for the assessment of rot damage. Stands of different age classes (100–120, 130–150, 160–170 years old) and distinct regions of provenance (Istebna and Orawa) were investigated. Hierarchical analysis of variance was used to determine effects of stand age and stand provenance on butt rot occurrence at a stand level. High incidence of butt rot was noted in all of the studied seed stands (47% to 87% of diagnosed tree samples). Stand age had a significant effect on percentage share of ‘damaged wood’ on the tomogram. The extent of rot damage was rising with stand age, and the largest was observed in the age category 160–170 years. Spruce stands of Istebna provenance were generally more damaged by butt rot than those of Orawa provenance, however, the latter have been growing in forest sites more suitable for spruce in terms of fertility and altitude. Hierarchical analysis of variance did not show a statistically significant relationship between the region of provenance and average share of ‘damaged wood’ on the tomogram. Presented results indicate that for stands growing in similar conditions vulnerability to butt rot is determined by stand age. Further research is needed to separate impact of stand provenance identified with specific genetic constitution of a population from the effect of environmental conditions typical of a given region of provenance.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 4
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 66.

Tytuł:

Changes in starch distribution within an embryonic shoot of Norway spruce (Picea abies (L.) Karst.) before resumption of mitotic activity

Autorzy:

Guzicka, M.

Powiązania:

https://bibliotekanauki.pl/articles/41758.pdf

Data publikacji:

2001

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
temperature
embryonic shoot
Feulgen reaction
change
Picea abies
starch distribution
mitotic activity

Opis:

The above results supplemented earlier research on the structure and development of Norway spruce embryonic shoots and focuses on changes in starch distribution in winter and early spring. Starch accumulation and mobilization is characteristic of cells that play an important role in morphogenesis. The observed starch distribution within an embryonic shoot suggests that starch indicates the places of future mitotic and morphogenetic activities of the developing shoot. Changes of the rate of starch accumulation in a bud are affected by temperature. This study showed that especially important are the course of temperature fluctuations.

Źródło:

Dendrobiology; 2001, 46
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 67.

Tytuł:

Wpływ warunków siedliskowych na strukturę i zasobność drzewostanów świerkowo-sosnowych w Puszczy Augustowskiej
Impact of site conditions on the structure and volume of spruce-pine stands in the Augustowska Primeval Forest

Autorzy:

Andrzejczyk, T.
Drozdowski, S.

Powiązania:

https://bibliotekanauki.pl/articles/1016334.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

warunki siedliskowe
hodowla lasu
lesnictwo
struktura drzewostanu
drzewostany swierkowo-sosnowe
zasobnosc drzewostanu
Puszcza Augustowska
norway spruce
picea abies
spruce−pine stands
sub−boreal stands
age structure
multi−storeyed structure
site

Opis:

The role of spruce in shaping the structure and volume of pine stands in the Augustowska Primeval Forest (north−eastern Poland) increases with the increase of site fertility. On poor coniferous forest sites, spruce occurs mainly in an understorey and sporadically as an admixture species, whereas on medium−fertile and fertile sites it builds the second storey and occurs in the upper storey accounting for about 30−40% of stand volume. In mature pine stands of the Augustowska Primeval Forest, spruce comes from natural regeneration. Taking into consideration the course of the regeneration process, four types of spruce age structure are distinguished.

Źródło:

Sylwan; 2007, 151, 01; 30-40
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 68.

Tytuł:

Health condition of Norway spruce Picea abies (L.) Karst. stands in the Beskid Mts

Autorzy:

Holusa, J

Powiązania:

https://bibliotekanauki.pl/articles/41422.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea abies
spruce stand
Beskids Mountains
Moravo-Silesian Beskids Mountains
health condition
tree condition
rot infestation
insect
nutrient supply
climatic agent
mechanical destruction
snow
wind
air pollution
physiological condition
tree

Opis:

The health condition of spruce stands in the Moravian-Silesian Beskids is affected by several predisposition factors, the most important of which is the allochthonous character of spruce grown on improper sites. When exposed to a low supply of nutrients and intensive mechanical damage mainly by game, the trees are susceptible to rot infestations, climatic agents and mechanical destruction by snow, hard rime and wind. At present, air pollution does not show any significant impact on the spruce stands; it rather acts as a less important predisposition factor on mountain peaks. The physiological condition of trees is not impaired to the extent which would facilitate infestation with phytophagous or cambioxylophagous insects.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 69.

Tytuł:

Phenology of development and population characteristics of the small spruce bark beetle Ips amitinus (Eichh.) in the Karkonoski National Park

Autorzy:

Mazur, A.
Kuzminski, R.

Powiązania:

https://bibliotekanauki.pl/articles/38667.pdf

Data publikacji:

2013

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

development phenology
population characteristics
spruce bark beetle
Ips amitinus
Curculionidae
Scolytinae
Karkonosze National Park

Opis:

In the years 2005– 2006, in the Karkonoski National Park there were conducted observations on infestation of spruce trees by bark beetles (Col., Curculionidae, Scolytinae). Data on bark beetle species composition and frequency of occurrence of individual species were collected. The data on development phenology of the small spruce bark beetle Ips amitinus in the upper subalpine spruce forest sites (1000– 1250 m a.s.l.) indicated higher frequency of occurrence of this species (26.3%) when compared to the European spruce bark beetle Ips typographus. The study included analyses of population size, density, fecundity and mortality of I. amitinus. The rate of development in I. amitinus in the Karkonosze Mts. is similar to that observed in the Alps. The number of laid eggs observed was low and the reproduction success was very high at minimal mortality. Establishment of feeding galleries and egg laying lasted several weeks and 1/3 of feeding galleries were found in the second series of trap trees.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 70.

Tytuł:

Ocena stanu zdrowotnego świerka na podstawie analizy zdjęć wielospektralnych wykonanych fotograficznymi aparatami cyfrowymi przenoszonymi przez bezzałogowy statek latający
Assesment of norway spruce health using multispectral images acquired from unmanned aerial vehicle with non-metric cameras

Autorzy:

Zmarz, A.
Będkowski, K.
Miścicki, S.
Plutecki, W.

Powiązania:

https://bibliotekanauki.pl/articles/130756.pdf

Data publikacji:

2012

Wydawca:

Stowarzyszenie Geodetów Polskich

Tematy:

świerk
stan zdrowotny
zdjęcia wielospektralne
bezzałogowy statek latający
Norway spruce
health
multispectral images
UAV

Opis:

W pracy oceniono przydatność zdjęć w zakresie bliskiej podczerwieni. Zdjęcia wykonano zmodyfikowanymi aparatami cyfrowymi (Sigma DP2) zamontowanymi na bezzałogowym statku latającym AVI-1. Dla wybranego obiektu badawczego o pow. 284 ha, wykonano 930 zdjęć o rozdzielczości terenowej 0,15 m. Zdjęcia zostały przetworzone do postaci ortomozaik w barwach naturalnych oraz zbliżonych do spektrostrefowych. W terenie wykonano obserwacje koron świerków rosnących w ok. 40-letnim, jednogatunkowym drzewostanie. Określono gęstość igliwia, jego kolor oraz inne symptomy świadczące o kondycji drzew. Te same drzewa zidentyfikowano na ortomozaikach i poddano klasyfikacji, której wyniki porównano z danymi uzyskanymi w terenie. Ocenę stanu zdrowotnego świerka (Picea bies) na ortomozaikach wykonano analizując udział barwy czerwonej związanej z różnymi objawami chorobowymi i uszkodzeń koron. Obserwacje wykonało niezależnie od siebie dwóch obserwatorów, każdy w dwóch seriach. Ocenę jednolitości rozpoznawania barw przez obserwatorów oparto na porównaniu uzyskanych wartości. Stwierdzono, że jest możliwe podzielenie obserwowanych drzew na kilka klas zdrowotności.
Several tests were carried out of unmanned aerial vehicles (UAV) equipped with customer cameras to take pictures of forest areas. Based on this a special own UAV was built which can carry a set of non-metric digital cameras recording images in RGB and near-IR channels. Approximately 1000 aerial images with a ground resolution of 0.15 m were taken for the selected research facility with an area of approximately 250 ha. These images were used to produce an orthomosaic in natural and multispectral bands. It was decided to find out whether it is possible to evaluate the health condition of spruce (Picea abies). The field observations were made of the crowns of spruces growing in about 40-year-old single-species stand. Information on the density of pine needles, its color, and other symptoms of the tree condition were recorded. The same trees were identified on orthomosaic and classified. Results of classification from the field and orthomosaic were compared. It was concluded, that it is possible to divide the observed number of trees into several health condition classes.

Źródło:

Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2012, 23; 541-550
2083-2214
2391-9477

Pojawia się w:

Archiwum Fotogrametrii, Kartografii i Teledetekcji

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 71.

Tytuł:

Role of spruce respiratory burst oxidase homolog (RBOH) during lignin formation in Norway spruce

Autorzy:

Nickolov, K.
Laitinen, T.
Haggman, H.
Teeri, T.
Karkonen, A.

Powiązania:

https://bibliotekanauki.pl/articles/80939.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

conference
Norway spruce
respiratory burst
lignin formation
hydrogen peroxide
NADPH oxidase
phosphorylation
protein-protein interaction

Źródło:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796

Pojawia się w:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 72.

Tytuł:

Litter-fall and humus accumulation in thinning experiment Kristianov in the Jizerske Hory Mts.

Autorzy:

Novak, J.
Slodicak, M.
Dusek, D.

Powiązania:

https://bibliotekanauki.pl/articles/38641.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

litter fall
humus accumulation
thinning
Izerskie Mountains
Picea abies
Norway spruce
nutrient cycle
tree stand

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 73.

Tytuł:

Relationship between forest canopy and natural regeneration in the subalpine spruce-larch forest (north-east Italy)

Autorzy:

Marchi, A.
Paletto, A.

Powiązania:

https://bibliotekanauki.pl/articles/38768.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

relationship
forest canopy
natural regeneration
subalpine forest
spruce-larch forest
canopy closure
canopy cover
Italy

Opis:

The authors describe the difference between canopy cover (proportion of the forest floor covered by the vertical projection of the tree crowns) and canopy closure (proportion of sky hemisphere obscured by vegetation when viewed from a single point) and the respective ground-based estimation techniques focused on two types of densiometer (GRS tube and spherical). The data collected in the field were used to analyse the relationship between forest canopy and natural regeneration in two subtypes of subalpine larch-spruce forests. The results indicate that in the first subtype characterized by a high fertility and a high canopy cover (around 62%), the level of natural regeneration is low (115 stems per hectare) and it is nearly exclusively composed by spruce [Picea abies (L.) Karst.]. For the second subtype characterized by a low fertility and a medium canopy cover (around 49%) the natural regeneration is rather dense (650 stems per hectare). At last the authors evidence a insignificant difference between the data of forest canopy collected by different ground-based estimation techniques (+0.7% using spherical densiometer compared to using GRS tube densiometer).

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 74.

Tytuł:

Genetic value of the Silesian Beskid populations of Norway spruce Picea abies (L.) Karst. in the IUFRO 1972 provenance experiment

Autorzy:

Matras, J

Powiązania:

https://bibliotekanauki.pl/articles/41156.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Silesian Beskids Mountains
Norway spruce
Picea abies
genetic value
plant population
plant breeding
provenance
plasticity

Opis:

The paper presents the results of research concerning the genetic variation in the growth traits and phenotypic plasticity of Norway spruce populations from the Silesian Beskid Mts and compares them with those of twenty Polish spruce provenances planted on thirty plots established in Europe and Canada in the IUFRO 1972 provenance experiment. The Silesian Beskid spruce is represented by six populations from the Wisła and Ujsoły Forest Districts. The variation in the growth traits of all populations discussed (data from all plots) is 6.009 standard deviation units. At population level this variation is also comparatively high and ranges between 4.674 for the Kartuzy spruce and 2.1920 for the Rycerka Zwardoń spruce. The Silesian Beskid spruce populations are not homogeneous but they belong to the populations with a high or moderate growth rate. The Istebna Bukowiec spruce performed the best on most plots. Only on Finnish and Canadian plots the growth traits of this population were below the average.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 75.

Tytuł:

Flowering of Picea abies (L.) Karst. clones of Istebna origin in the Kórnik seed orchard

Autorzy:

Chalupka, W
Rozkowski, R.

Powiązania:

https://bibliotekanauki.pl/articles/41272.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea abies
clone
flowering
graft mortality
genetic variation
seed orchard
forest tree species

Opis:

The flowering and graft mortality of Norway spruce clones of Istebna origin was only slightly different from clones of other origin in the same seed orchard. The negative effect ofmoving Istebna clones from the south to the north of their origin was probably compensated by moving them from a higher altitude to lowland. There is a danger that the complete loss of several clones, observed in the seed orchard with time,may really decrease the expected level of genetic variation in the progeny. It is recommended that the mortality of grafts and the reduction in the number of clones in the seed orchard should be under permanent observation.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 76.

Tytuł:

Hodowlane kryteria kwalifikowania drzewostanów do przebudowy
The silvicultural criteria of qualifying for conversion

Autorzy:

Zajączkowski, J.

Powiązania:

https://bibliotekanauki.pl/articles/1018655.pdf

Data publikacji:

2006

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

kryteria kwalifikacji
przebudowa drzewostanow
lesnictwo
cele hodowlane
conversion
pine and spruce stands
broadleaved forest habitats

Opis:

The paper presents the results of research carried out by Polish and foreign scientists on the impact of pine and spruce stands on fertile forest habitats and formulates recommendations for the rationalisation of conversion operations in these stands.

Źródło:

Sylwan; 2006, 150, 12; 27-32
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 77.

Tytuł:

Influence of modification of aged spruce wood by in situ polymerization with ethyl methacrylate and methyl acrylate and paraloid B72 on color and water absorption

Autorzy:

Siedlecka, Beata
Marchwicka, Monika

Powiązania:

https://bibliotekanauki.pl/articles/2200111.pdf

Data publikacji:

2022

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

spruce wood
in situ polymerization
ethyl methacrylate
methyl acrylate
paraloid B72
color
water absorption

Opis:

Influence of modification of aged spruce wood by in situ polymerization with ethyl methacrylate and methyl acrylate and paraloid B72 on color and water absorption. Wood is hydrophilic in nature, which creates problems such as dimensional instability and susceptibility to biological degradation. By using chemical modification, wood can be refined into new products with improved properties. Such a combination of wood and polymer is called a wood-polymer composite (WPC). The presented work compares the modification of aged wood by two methods. In situ polymerization with ethyl methacrylate and methyl acrylate with modification with Paraloid B72 solution. The determinants of the modifications carried out are percentage weight gain (WPG), color change and water absorption. Unmodified wood aged and unaged were the control samples. Also unaged and modified wood samples were prepared to compare results. The greatest change in color intensity and total color difference after the aging process was recorded for samples modified with Paraloid B72, and after UV light treatment - modified by the in situ polymerization. The in situ-modified samples had the lowest water absorption among aged samples, and Paraloid B72-modified samples had the lowest water absorption among unaged samples. The highest WPG was obtained from the aged samples modified by the in situ polymerization.
Wpływ modyfikacji starzonego drewna świerkowego metodą polimeryzacji in situ metakrylanem etylu i akrylanem metylu oraz paraloidem B72 na barwę oraz nasiąkliwość. Drewno ma charakter hydrofilowy, co stwarza problemy takie jak niestabilność wymiarowa i podatność na degradację biologiczną. Stosując modyfikację chemiczną, drewno może być uszlachetnione tworząc nowy produkt o ulepszonych właściwościach. Takie połączenie drewna i polimeru jest uważane za kompozyt drewno-polimer (WPC). W prezentowanej pracy porównano modyfikację starzonego drewna dwiema metodami: polimeryzację in situ metakrylanem etylu i akrylanem metylu z oraz modyfikację roztworem Paraloidu B72. Wyznacznikami przeprowadzonych modyfikacji są: procentowy przyrost masy (WPG), barwa i absorpcja wody. Próbki kontrolne stanowiło drewno niemodyfikowane i starzone. W celu porównania wyników przygotowano również próbki drewna niestarzonego i modyfikowanego. Największą zmianę intensywności barwy i całkowitej różnicy barw po procesie starzenia odnotowano dla próbek modyfikowanych Paraloidem B72, a po działaniu światła UV - modyfikowanych polimeryzacją in situ. Próbki modyfikowane polimeryzacją in situ charakteryzowały się najniższą chłonnością wody wśród próbek starzonych, a próbki modyfikowane Paraloidem B72 najniższą chłonnością wody wśród próbek niestarzonych. Najwyższą WPG uzyskano z próbek starzonych, modyfikowanych polimeryzacją in situ.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2022, 120; 45--56
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 78.

Tytuł:

Genetic structure of Norway spruce [Picea abies (L.) Karst.] provenances tested in IPTNS-IUFRO 1964/68 experiment in Krynica

Autorzy:

Sabor, J.
Kempf, M.
Masternak, K.

Powiązania:

https://bibliotekanauki.pl/articles/38295.pdf

Data publikacji:

2013

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

genetic structure
Norway spruce
Picea abies
isoenzyme
polymorphism
seed source
genetic distance
experiment
Krynica-Zdroj town

Opis:

The results of previous studies have shown high breeding values of Beskidian spruce. The aim of the study was to assess the genetic structure of seventeen Norway spruce provenances from the Beskidy Mts. tested in IPTNSIUFRO 1964/68 experiment in Krynica, which survived after massive wind damage on the plots. Polymorphism of five isozyme systems encoded in five loci was determined. The highest value of genetic diversity parameters: mean number of alleles per locus and observed heterozygosity was noted for progeny of spruce from the Eastern Beskidy Mts. (Na = 1.47, Ho = 0.15), and the lowest – for the provenance from the Western Beskidy Mts., Babia Góra massif and the Beskid Sądecki Mts. (Na = 1.27, Ho = 0.12). Mean genetic distance between analyzed spruce provenances was equal to 0.027.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 79.

Tytuł:

Height-diameter models for mixed-species forests consisting of spruce, fir, and beech

Autorzy:

Petras, R.
Bosela, M.
Mecko, J.
Oszlanyi, J.
Popa, I.

Powiązania:

https://bibliotekanauki.pl/articles/38691.pdf

Data publikacji:

2014

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

height-diameter model
mixed-species forest
tree
spruce
fir
beech
Abies alba
Picea abies
Fagus sylvatica

Opis:

Height-diameter models define the general relationship between the tree height and diameter at each growth stage of the forest stand. This paper presents generalized height-diameter models for mixed-species forest stands consisting of Norway spruce (Picea abies Karst.), Silver fir (Abies alba L.), and European beech (Fagus sylvatica L.) from Slovakia. The models were derived using two growth functions from the exponential family: the two-parameter Michailoff and three-parameter Korf functions. Generalized height-diameter functions must normally be constrained to pass through the mean stand diameter and height, and then the final growth model has only one or two parameters to be estimated. These “free” parameters are then expressed over the quadratic mean diameter, height and stand age and the final mathematical form of the model is obtained. The study material included 50 long-term experimental plots located in the Western Carpathians. The plots were established 40–50 years ago and have been repeatedly measured at 5 to 10-year intervals. The dataset includes 7,950 height measurements of spruce, 21,661 of fir and 5,794 of beech. As many as 9 regression models were derived for each species. Although the “goodness of fit” of all models showed that they were generally well suited for the data, the best results were obtained for silver fir. The coefficient of determination ranged from 0.946 to 0.948, RMSE (m) was in the interval 1.94–1.97 and the bias (m) was –0.031 to 0.063. Although slightly imprecise parameter estimation was established for spruce, the estimations of the regression parameters obtained for beech were quite less precise. The coefficient of determination for beech was 0.854–0.860, RMSE (m) 2.67–2.72, and the bias (m) ranged from –0.144 to –0.056. The majority of models using Korf’s formula produced slightly better estimations than Michailoff’s, and it proved immaterial which estimated parameter was fixed and which parameters were free.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2014, 56, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 80.

Tytuł:

Near-natural methods of forest regeneration

Autorzy:

Mauer, O

Powiązania:

https://bibliotekanauki.pl/articles/41324.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Norway spruce
Picea abies
artificial regeneration
plantation
mountain forest stand
forest regeneration
regeneration method
technological procedure

Opis:

The study examines the factors involved in the successful artificial regeneration of Norway spruce Picea abies (L.) Karst. by plantation or sowing in wood left behind in mountain forest stands. The issues studied are as follows: regeneration in stumps,trunks and disks (logs); regeneration in wood at various stages of decomposition; regeneration under the stand canopy and on clearings. The work brings a description of technological procedures to ensure success of this regeneration method.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 81.

Tytuł:

From studies on possibility of protecting blue spruce [Picea pungens Engelm.] against fungi. Part I. Laboratory assessment of antifungal activity of selected fungicides
Z badań nad możliwością ochrony świerka kłującego (Picea pungens Engelm.) przed grzybami. Część I. Laboratoryjna ocena skuteczności grzybobójczej wybranych fungicydów

Autorzy:

Mirski, W.

Powiązania:

https://bibliotekanauki.pl/articles/11541672.pdf

Data publikacji:

2007

Wydawca:

Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie

Tematy:

antifungal activity
control
urban green area
fungi
health status
fungicide
plant protection
Picea pungens
blue spruce

Opis:

The antifungal activity of two fungicides, i.e. Rovral Flo 255 SC and Sportak Alpha 380 EC was determined by in vitro tests to 12 fungal species isolated from blue spruce (Picea pungens) and its cultivar Glauca. It was found that Sportak Alpha 380 EC has the highest antifungal activity and the widest range of application to all fungi under examination. Rovral Flo 255 SC has shown significantly poorer activity.
W badaniach in vitro określano grzybobójczą aktywność dwóch fungicydów, tj. Rovralu Flo 255 SC i Sportaku Alpha 380 EC, w stosunku do 12 gatunków grzybów wyizolowanych z roślin świerka kłującego (Picea pungens) i jego odmiany Glauca. Najszersze spektrum działania oraz wysoką aktywność grzybobójczą wykazał się Sportak Alpha 380 EC, bo wobec wszystkich badanych gatunków grzybów. Natomiast Rovral Flo 255 SC był znacznie słabszy.

Źródło:

Acta Scientiarum Polonorum. Hortorum Cultus; 2007, 06, 4; 21-31
1644-0692

Pojawia się w:

Acta Scientiarum Polonorum. Hortorum Cultus

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 82.

Tytuł:

The growth and biodiversity of spruce stands in variable climate conditions - Radziejowa case study

Autorzy:

Grodzki, W.
Ambrozy, S.
Gil, W.

Powiązania:

https://bibliotekanauki.pl/articles/38388.pdf

Data publikacji:

2013

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

plant growth
biodiversity
spruce stand
climate condition
climate change
forest
radial increment
altitudinal variation
Radziejowa mountain

Opis:

In the experiment eight populations of Picea abies were chosen at 100 m intervals between 500 m and 1200 m altitude a.s.l.. In each population wood core samples were collected from 14–19 trees (126 cores total), and measured using a Corim Maxi device. At four of the eight sites (every 200 m in elevation between 500 m and 1100 m a.s.l.), the diversity of ground vegetation was evaluated, and temperature was recorded at every 100 m of altitude. The highest average radial increment of spruce occurred between the altitudes 800–1000 m a.s.l., which is probably the optimum for spruce. The larger increment indices observed at higher altitudes may signify a high growth potential of spruce. It may also suggest a recent upward shift of the optimum growth zone for this tree species. In 15 phytosociological records, the presence of 148 plant species forming plant associations: Dentario glandulosae- Fagetum typicum (sub-mountainous and mountainous form) and Abieti-Piceetum, and community Abies alba-Rubus hirtus, was documented. No relationship was found between ground vegetation species diversity (expressed by Shannon-Wiener index) and levels of stand diversity. The vegetation species diversity varied with the elevation above sea level: the highest plant diversity was found at 500 m a.s.l., and decreased with increasing altitude. The potential increase in air temperatures may result in changes to the altitudinal range of many plant species including trees, and consequently in an upward shift of the boundaries of plant zones; in this case the sub-mountainous and lower mountainous forest zone. In this region, the optimal zone for Norway spruce may be restricted to the highest elevations.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 3
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 83.

Tytuł:

Problem szkód w lasach powodowanych przez śnieg i wiatr oraz sposoby przeciwdziałania im
Damage of forests caused by snow and wind and the ways of counteracting it

Autorzy:

Zachara, T.

Powiązania:

https://bibliotekanauki.pl/articles/1018613.pdf

Data publikacji:

2006

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

szkody w lesie
wiatry
lasy
snieg
lesnictwo
czynniki abiotyczne
abiotic damage
scots pine
norway spruce
silviculture

Opis:

The paper is a review of contemporary national and world literature related to the issue of damage to forests caused by wind and snow with special consideration of the most threatened species i.e. pine and spruce. The counteracting of the damage by means of rational forest management and silvicultural methods were discussed. The paper focuses on both, the shaping of individual susceptibility of trees and collective stability based on the spatial−time order.

Źródło:

Sylwan; 2006, 150, 10; 56-64
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 84.

Tytuł:

Investigation of enzymatic effects on pit membranes using light and scanning electron microscopy

Autorzy:

Durmaz, S.
Yildiz, U.C.
Ozturk, M.
Serdar, B.

Powiązania:

https://bibliotekanauki.pl/articles/52338.pdf

Data publikacji:

2016

Wydawca:

Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna

Tematy:

investigation
enzymatic effect
pit membrane
light electron microscopy
scanning electron microscopy
spruce wood
permeability
enzymatic treatment

Źródło:

Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2016, 59, 198
1644-3985

Pojawia się w:

Drewno. Prace Naukowe. Doniesienia. Komunikaty

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 85.

Tytuł:

Effects of slow-release fertilizers of Silvamix and Silvagen line on growth of a young spruce and larch forest plantation three years after application

Autorzy:

Stofko, P.

Powiązania:

https://bibliotekanauki.pl/articles/38627.pdf

Data publikacji:

2010

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

fertilizer
Silvamix fertilizer
Silvagen fertilizer
plant growth
young plant
spruce forest
larch forest
forest plantation
fertilizer application

Opis:

This work evaluates effects of tablet fertilizers Silvamix, Silvamix Mg and Silvagen on height and diameter growth of a young plantation of Norway spruce [Picea abies (L.) Karst.] and European larch (Larix decidua Mill.) after the third year of fertilizer application. The experiment was conducted on one experimental plot in the Low Tatra Mountains. The fertilizers were applied at a rate five tablets (50 g) per each tree, considering not treated trees as the control. The tablets were laid on the ground and thoroughly trodden into soil. ANOVA analysis did not reveal any significant effects of fertilizers on height and diameter growth of Norway spruce trees. The use of Silvagen resulted in significant effects on height growth of larch trees.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2010, 52, 1
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 86.

Tytuł:

Effect of the age of spruce stands on the balance of elements in the Potok Dupniański catchment

Autorzy:

Malek, S

Powiązania:

https://bibliotekanauki.pl/articles/41231.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

tree stand
spruce
age
element balance
bulk precipitation
surface flow
soil water
stream water
Potok Dupnianski catchment

Opis:

The study analyses the transfer of F-, Cl-, NO3-, SO42-, Na+, K+, Ca2+, Mg2+, Fe2+, Mn2+ and Zn2+ from bulkprecipitation to throughfall, soil surface flow, vertical flow and intercover flow of water (gravity lysimeters at 20 cm soil depth) in spruce stands of different age classes (1st, 2nd, 5th, 6th), and the amount of these ions flowing out from the Potok Dupniański catchment in the Silesian Beskid Mts. The results cover the year 2000. The concentration and amount of SO4 2- in throughfall systematically increased and the pH value decreased with the age of the stands and with successive elements of the ecosystem. The NH4+ ion was probably absorbed in the canopy, which caused a washout of K+, Mn2+, F- and SO42- in the vegetation season in older stands. In the winter season, Fe2+, Mn2+, Na+ and K+ were washed out from the youngest stands (1st age class), whereas F-, NO3 -, SO42--, K+, Ca2+, Mg2+, Mn2+ and Fe2+ – from older canopies. Decomposition of the organic matter caused a rise in water acidity and an increase in the concentrations of all the analysed ions; their leaching, however, was low (under 1%). Water from intercover flow contributed to an increase in the amount of water and the concentration and amount of ions and to a further decrease in water reaction at a soil depth of 20 cm. All the anions and cations flowed away with water penetrating vertically and horizontally. Considerable amounts of ions, especially SO42-, Na+, K+, Ca2+ and Mg2+, were carried beyond the reach of the main mass of the root system and then out of the catchment, which may adversely affect the development and health of spruce stands.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 87.

Tytuł:

Autovegetative reproduction in conservation and selective cultivation of Norway spruce Picea abies (L.) Karst of Istebna race

Autorzy:

Rylski, K

Powiązania:

https://bibliotekanauki.pl/articles/41485.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

autovegetative reproduction
plant reproduction
conservation
selective cultivation
Norway spruce
Picea abies
forest tree
rooting experiment
cutting
progeny

Opis:

The paper discusses the results of rooting experiments conducted with the cuttings obtained from 8-year-old spruce trees of Istebna race. The studies investigated the effects of endogenous factors, such as the place of extraction, length and origin of cuttings, and an exogenous factor, which is a rooting stimulus.

Źródło:

Dendrobiology; 2004, 51 Supplement
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 88.

Tytuł:

Evaluation of the soil enzymes activity as an indicator of the impact of anthropogenic pollution on the Norway spruce ecosystems in the Silesian Beskid
Ocena aktywności enzymów glebowych jako wskaźnika wpływu zanieczyszczeń antropogennych na funkcjonowanie ekosystemów lasów świerkowych Beskidu Śląskiego

Autorzy:

Ciepał, R.

Powiązania:

https://bibliotekanauki.pl/articles/126591.pdf

Data publikacji:

2013

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

heavy metals
soil enzymes
Norway spruce
Silesian Beskid Mts.
metale ciężkie
enzymy glebowe
świerk pospolity
Beskid Śląski

Opis:

Activity of soil enzymes is considered as a good indicator of natural and anthropogenic disturbances of the functioning of the soil. Heavy metals can inhibit the activity of enzymes in varying degree, depending on soil properties such as content of clay materials, organic matter and pH of soil solution. The aim of this study was to determine the effect of physicochemical and biological properties of soils on the condition of Norway spruce stands in Silesian Beskid. In the soil samples enzymatic activity of four enzymes (alkaline and acid phosphatase, dehydrogenase and urease) and concentration of three selected heavy metals (Cd, Pb, Zn) and sulfur were determined. The analyses showed no reduced activity of investigated enzymes. Presumably, despite of low pH values of the soil, organic matter contained in the soil is able to effectively bind heavy metal ions, limiting their cycling in the environment. It can be concluded that the condition of spruce stands in Silesian Beskid is not affected by the soil contamination.
Aktywność enzymów glebowych uważana jest za dobry wskaźnik naturalnych i antropogennych zaburzeń w funkcjonowaniu gleby. Metale ciężkie w różnym stopniu mogą hamować działanie enzymów w zależności od takich właściwości gleb, jak: zawartość materiałów ilastych, gliny, materii organicznej czy wartości pH roztworu glebowego. Celem pracy było określenie wpływu właściwości fizykochemicznych i biologicznych gleb na kondycję drzewostanów świerkowych w Beskidzie Śląskim. Próbki glebowe zbadano pod względem aktywności enzymatycznej (fosfataza kwaśna i zasadowa, dehydrogenaza, ureaza) oraz koncentracji trzech wybranych metali ciężkich (Cd, Pb, Zn) i siarki. Analizy nie wykazały obniżonej aktywności badanych enzymów. Prawdopodobnie, mimo niskich wartości pH gleby, zawarta w niej materia organiczna efektywnie wiąże metale ciężkie, ograniczając ich obieg w środowisku. Można stwierdzić, że stan drzewostanów świerkowych w Beskidzie Śląskim nie ma związku z zanieczyszczeniem gleb na tym terenie.

Źródło:

Proceedings of ECOpole; 2013, 7, 1; 29-35
1898-617X
2084-4557

Pojawia się w:

Proceedings of ECOpole

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 89.

Tytuł:

Evaluation of the Soil Enzymes Activity as an Indicator of the Impact of Anthropogenic Pollution on the Norway Spruce Ecosystems in the Silesian Beskid
Ocena aktywności zanieczyszczeń glebowych jako wskaźnika wpływu zanieczyszczeń antropogennych na funkcjonowanie ekosystemów lasów świerkowych Beskidu Śląskiego

Autorzy:

Bierza, W.
Nadgórska-Socha, A.
Małkowska, E.
Ciepał, R.

Powiązania:

https://bibliotekanauki.pl/articles/387990.pdf

Data publikacji:

2012

Wydawca:

Towarzystwo Chemii i Inżynierii Ekologicznej

Tematy:

metale ciężkie
enzymy glebowe
świerk pospolity
Beskid Śląski
heavy metals
soil enzymes
Norway spruce
Silesian Beskid Mts.

Opis:

Activity of soil enzymes is considered as a good indicator of natural and anthropogenic disturbances of the functioning of the soil. Heavy metals can inhibit the activity of enzymes in varying degree, depending on soil properties such as content of clay materials, organic matter and pH of soil solution. The aim of this study was to determine the effect of physicochemical and biological properties of soils on the condition of Norway spruce stands in Silesian Beskid. In the soil samples enzymatic activity of four enzymes (alkaline and acid phosphatase, dehydrogenase, urease) and concentration of three selected heavy metals (Cd, Pb, Zn) and sulfur were determined. The analyses showed no reduced activity of investigated enzymes. Presumably, despite of low pH values of the soil, organic matter contained in the soil is able to effectively bind heavy metal ions, limiting their cycling in the environment. It can be concluded that the condition of spruce stands in Silesian Beskid is not affected by the soil contamination.
Aktywność enzymów glebowych uważana jest za dobry wskaźnik naturalnych i antropogennych zaburzeń w funkcjonowaniu gleby. Metale ciężkie w różnym stopniu mogą hamować działanie enzymów, w zależności od właściwości gleb, takich jak zawartość materiałów ilastych, gliny, materii organicznej czy wartości pH roztworu glebowego. Celem pracy było określenie wpływu właściwości fizykochemicznych i biologicznych gleb na kondycję drzewostanów świerkowych w Beskidzie Śląskim. Próbki glebowe zbadano pod względem aktywności enzymatycznej (fosfataza kwaśna i zasadowa, dehydrogenaza, ureaza) oraz koncentracji trzech wybranych metali ciężkich (Cd, Pb, Zn) i siarki. Analizy nie wykazały obniżonej aktywności badanych enzymów. Prawdopodobnie mimo niskich wartości pH gleby, zawarta w niej materia organiczna efektywnie wiąże metale ciężkie, ograniczając ich obieg w środowisku. Można stwierdzić, że stan drzewostanów świerkowych w Beskidzie Śląskim nie ma związku z zanieczyszczeniem gleb na tym terenie.

Źródło:

Ecological Chemistry and Engineering. A; 2012, 19, 7; 699-717
1898-6188
2084-4530

Pojawia się w:

Ecological Chemistry and Engineering. A

Dostawca treści:

Biblioteka Nauki

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Artykuł

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Skocz do pozycji: 90.

Tytuł:

The Spruce in the Culture of the Podhale Shepherds
Rola świerka w kulturze pasterskiej Podhalan

Autorzy:

Geneja-Pietrzak, Barbara

Powiązania:

https://bibliotekanauki.pl/articles/1038777.pdf

Data publikacji:

2019

Wydawca:

Akademia Ignatianum w Krakowie

Tematy:

kult
drzewo
świerk
magia
Wołosi
kultura pasterska
literatura
poezja
sacred tree
spruce
magic
Vlachs
pastoral culture
literature
poetry

Opis:

In this article I tackle the issue of the worship of spruce trees in the culture of the shepherds in Podhale, a region in southern Poland. This is an issue related to the particular significance of the spruce. It has played a great role in the culture of the whole Podhale region, and es-pecially in the pastoral culture of this area. The spruce was elevated to the rank of a symbol of good luck, prosperity and well‑being. All ac-tivities carried out in the work of shepherds were connected with the ceremonial treatment of spruce trees. It should be noted that these ac-tivities were religiously and magically motivated, as spruce twigs were blessed in the church beforehand. However, this does not change the fact that the rituals were magical. An example would be the custom according to which shepherds would pin spruce or fir twigs to their hats, believing that this would keep them and their sheep were safe. Nowadays, shepherding culture enjoys great interest among research-ers, as well as among Polish and even foreign communities, who apply for participation in shepherding courses organized today. The magic associated with pastoral culture was also reflected in Polish litera-ture and dialect poetry. Readers can refer to the works of such poets and writers as: Seweryn Goszczyński, Kazimierz Przerwa‑Tetmajer, Władysław Orkan, and Stanisław Witkiewicz or dialect poets Wanda Szado‑Kudasi kowa and Roman Dzioboń.
W zaproponowanym przeze mnie artykule zajmuję się zagadnieniem kultu świerka w kulturze pasterzy na Podhalu, regionie w Polsce Połu-dniowej. Jest to temat związany ze szczególnym znaczeniem drzewa, jakim jest świerk. Odegrał on na całym Podhalu, a zwłaszcza w kultu-rze pasterskiej tego obszaru ogromną rolę. Został wyniesiony do rangi symbolu szczęścia, pomyślności i dobrobytu. Wszelkie czynności wy-konywane w pracy pasterzy związane były z uroczystym traktowaniem świerka. Należy zaznaczyć, iż czynności te miały religijno‑magiczne motywacje, bowiem gałązki świerka poświęcone były wcześniej w koś-ciele. Nie zmienia to jednak faktu, iż późniejsze rytuały miały charakter magiczny. Przykładem będzie choćby zwyczaj, zgodnie z którym paste-rze przypinali gałązki świerka bądź jodły do kapelusza, wierząc, że im samym oraz owcom nic nie zagraża. Współcześnie kultura pasterska cieszy się ogromnym zainteresowaniem wśród badaczy naukowych za-równo z Polski, jak i z zagranicy, którzy zgłaszają swoje uczestnictwo w organizowanych dzisiaj kursach bacowskich. Magia związana z kul-turą pasterską znalazła swoje odbicie również w literaturze polskiej oraz poezji gwarowej. Czytelnicy mogą sięgnąć po dzieła takich auto-rów jak Seweryn Goszczyński, Kazimierz Przerwa ‑Tetmajer, Włady-sław Orkan, Stanisław Witkiewicz oraz po dzieła twórców poezji gwa-rowej: Wandy Szado‑Kudasikowej, Romana Dziobonia.

Źródło:

Perspektywy Kultury; 2019, 27, 4; 201-218
2081-1446
2719-8014

Pojawia się w:

Perspektywy Kultury

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 91.

Tytuł:

Rozpuszczanie skały węglanowej w glebach leśnych buczyn i świerczyn w warunkach laboratoryjnych
Dissolution of carbonate rock in soils under beech and spruce forests in the laboratory conditions

Autorzy:

Drewnik, M.
Wasak, K.
Żelazny, M.
Jelonkiewicz, L.

Powiązania:

https://bibliotekanauki.pl/articles/989332.pdf

Data publikacji:

2016

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

gleboznawstwo lesne
gleby lesne
materia organiczna
skaly weglanowe
rozpuszczanie
denudacja chemiczna
badania laboratoryjne
denudation
beech
norway spruce
rendzina

Opis:

Chemical denudation plays a crucial role in affecting the water chemistry and the development of the relief, therefore the dissolution of carbonate rocks is the subject of numerous research. The aim of the study was to determine the effect of soil material derived from the organic (O) as well as humus (A) horizons of forest soils (common beech and Norway spruce stands) on the dissolution of rock. During one−year laboratory experiment standardized samples of dolomitic limestone placed in the soil material were washed with deionized water. The greatest loss of the sample rocks mass occurred in O material from Norway spruce stand (43.9‰ on average), while in other cases, the loss of rock samples mass was much lower and statistically non−significant. The total masses of calcium (Ca2+) leached from O material under beech and spruce stands were similar, however in the case of spruce most of Ca2+ derives from rock dissolution. Similarly, higher proportion of magnesium (Mg2+) leached from O material under Norway spruce derives from rock dissolution, although the total mass of Mg2+ leached is higher from O material under beech. The total mass of Ca2+ and Mg2+ leached from A material was similar or higher than from O material, however most of those ions derived from the soil material. The results indicate that the replacement of beech by Norway spruce can increase chemical denudation as well as Ca2+ and Mg2+ leaching, wherein Ca2+ leaching would be significantly greater than Mg2+.

Źródło:

Sylwan; 2016, 160, 09; 751-758
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 92.

Tytuł:

Growth responses of Picea abies to climate in the central part of the Ceskomoravska Upland (Czech Republic)

Autorzy:

Rybnicek, M.
Cermak, P.
Zid, T.
Kolar, T.

Powiązania:

https://bibliotekanauki.pl/articles/41537.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

growth response
Picea abies
Norway spruce
precipitation
temperature
climate
environmental factor
tree ring
biomass
Ceskomoravska Upland
Czech Republic

Opis:

The aims of the study were to determine the effect of temperatures and precipitation on the ring width and to compare the results with the results of previous studies conducted in other mountain ranges of the Czech Republic. The research was performed in the central part of the Ceskomoravská Upland in the vicinity of Herálec municipality in selected 70- up to 110-year-old spruce stands at altitudes from 680ma.s.l. to 779 m a.s.l. Measuring of tree-ring widths and synchronization of individual ring series were conducted in PAST4. The age trend was removed by ARSTAN and climatic effects were modelled in DendroClim2002. The correlation of tree-ring width with monthly precipitation is positive and statistically significant for July of the previous year and for the entire summer period from June to September of the current year. The correlation of tree-ring width with mean monthly temperatures is negative and statistically significant for July and September and positive and statistically significant for October of the previous year. Negative correlation was also found for temperatures of the entire summer period from June to September of the previous year. The regional tree-ring chronology mainly shows two periods of highly reduced increment: from 1992 to 1996 and from 2003 to the end of the analysed period. The results thus confirm the hypothesis that the tree-ring width is in positive correlation with summer precipitation and negative correlation with summer temperatures. Also the results of the habitual diagnostics have shown a relatively low degree of crown transformation which indicates a weak or short-term stress load.

Źródło:

Dendrobiology; 2012, 68
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 93.

Tytuł:

Kornik drukarz Ips typographus (L) - naturalny składnik ekosystemów leśnych Puszczy Białowieskiej, czy ich zagrożenie?
Spruce bark beetle Ips typographus (L) - a natural component of the ecosystems in the Bialowieza Forest or their threat?

Autorzy:

Nowak, A.

Powiązania:

https://bibliotekanauki.pl/articles/791399.pdf

Data publikacji:

2016

Wydawca:

Wyższa Szkoła Zarządzania Środowiskiem w Tucholi

Tematy:

drzewostany swierkowe
szkodniki roslin
kornik drukarz
Ips typographus
Puszcza Bialowieska
rownowaga przyrodnicza
zagrozenia roslin
ekosystemy lesne
swierk pospolity
procesy naturalne
zarzadzenia
forest ecosystem
Norway spruce
plant pest
spruce bark beetle
ecological balance
gradation
natural process
directive
forest
threat
Bialowieza Forest

Źródło:

Zarządzanie Ochroną Przyrody w Lasach; 2016, 10
2081-1438
2391-4106

Pojawia się w:

Zarządzanie Ochroną Przyrody w Lasach

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 94.

Tytuł:

Wzory empiryczne do szacowania piecioletniego przyrostu wysokosci w drzewostanach swierkowych
Wzory empiryczne do szacowania pięcioletniego przyrostu wysokości w drzewostanach świerkowych

Autorzy:

Rymer-Dudzińska, T.

Powiązania:

https://bibliotekanauki.pl/articles/1023114.pdf

Data publikacji:

2005

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

przyrost wysokosci
dendrometria
swierk
Picea
drzewostany swierkowe
lesnictwo
wzory empiryczne
drzewa lesne
empirical equations
height increment
spruce stands

Opis:

On the basis of the research on relationships between the height growth and different stand characteristics carried out on the material collected from 100 spruce stands three empirical equations for determining the height growth of stands were proposed. The most precise equation based on the average values of dbh increment, dbh and stand height allows to estimate the height increment with the average error equalling ±17.0%.

Źródło:

Sylwan; 2005, 149, 09; 10-14
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 95.

Tytuł:

Somatic embryogenesis of selected coniferous tree species of the genera Picea, Abies and Larix

Autorzy:

Szczygiel, K
Hazubska-Przybyl, T.
Bojarczuk, K.

Powiązania:

https://bibliotekanauki.pl/articles/57833.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

Abies
micropropagation
ex vitro
development
larch
tree species
spruce
in vitro
botany
Picea
medium
embryogenesis
Larix
fir
hormone

Opis:

Experiments on somatic embryogenesis in selected spruce, fir and larch species were performed to determine if this method of micropropagation enables production of quality seedlings for forest nurseries. High frequencies of embryogenic callus in spruce (23-31%) and fir (29%) were achieved when mature zygotic embryos were used as explants, while in larches (36%) only when megagametophytes (endosperms with immature embryos) were used. The possibility of somatic embryogenesis initiation also from somatic embryos (resulting in secondary and third generation of embryogenic callus) indicate high efficiency of this method of micropropagation. The best results at all stages of somatic embryogenesis (good proliferation of embryogenic callus, high rate of embryo regeneration and their survival) were obtained for Norway spruce, European larch and some hybrid larches.

Źródło:

Acta Societatis Botanicorum Poloniae; 2007, 76, 1
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 96.

Tytuł:

The impact of crosshead speed on the strength of spruce wood (Picea abies L.)

Autorzy:

Dobrowolska, Ewa
Lichaczewska, Barbara
Pinchevska, Olena

Powiązania:

https://bibliotekanauki.pl/articles/2200230.pdf

Data publikacji:

2020

Wydawca:

Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie

Tematy:

compression along the grain
tensile strength along the grain
bending perpendicularly to the grain
spruce wood
crosshead speed

Opis:

The effect of crosshead speed on the strength of spruce wood (Picea abies L.). This work examines the compression and tensile strength along the grain and bending perpendicularly to the grain of spruce wood was investigated at various crosshead speeds. The dependence of the immediate strength on the crosshead speed takes the form of an exponential function for compression and tension along the grain and bending perpendicular to the grain. The study showed that as the crosshead speed increases, the ultimate strength value increases regardless of the type of stress occurring. The bending strength is between the compression and tensile strength values. The strength for compression along the grain for the spruce wood tested is 50% of strength tension along grain length and 57% of the bending strength. The bending strength corresponds to 88% of the tensile strength.
Wpływ prędkości obciążania na wytrzymałości drewna świerkowego (Picea abies L.). W pracy zbadano przy różnych prędkościach obciążania wytrzymałość doraźną na ściskanie i rozciąganie wzdłuż włókien oraz zginanie prostopadle do płaszczyzn drewna świerkowego. Zależność wytrzymałości doraźnej od prędkości obciążania przybiera postać funkcji wykładniczej dla ściskania oraz rozciągania wzdłuż włókien a także zginania prostopadłego do włókien. Badanie wykazało, że wraz ze wzrostem prędkości obciążania rośnie wartość wytrzymałości doraźnej, niezależnie od rodzaju występujących naprężeń. Wytrzymałość na zginanie zawiera się w przedziale pomiędzy wartościami wytrzymałości na ściskanie i rozciąganie. Wytrzymałość przy ściskaniu dla badanego drewna świerkowego stanowią 50% wytrzymałości występującej przy rozciąganiu i 57% przy zginaniu. Wytrzymałość przy zginaniu odpowiada 88% wytrzymałości przy rozciąganiu.

Źródło:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2020, 109; 126--136
1898-5912

Pojawia się w:

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 97.

Tytuł:

Wykorzystanie wapna do zabezpieczenia składowanego surowca świerkowego przed zasiedleniem przez owady kambio− i ksylofagiczne
The use of lime for protection of stocked spruce logs against the infestation by cambio- and xylophagous insects

Autorzy:

Grodzki, W.
Srokosz, K.
Latoń, R.

Powiązania:

https://bibliotekanauki.pl/articles/973160.pdf

Data publikacji:

2007

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

ochrona drewna
zasiedlanie
opryski
ksylofagi
kambiofagi
wapno
skuteczność
drewno świerkowe
leśnictwo
dłużyce
spruce logs
bark beetles
timber protection
lime

Opis:

In April 2005, 2 sets by 3 stacks containing Norway spruce logs were exposed in sunny and shaded place within the forest. In each set logs in 2 stacks were sprayed with Ca(OH)2 aquatic dilution with the addition of milk and vegetable oil (1 stack as a whole, and 1 individually – log by log), and 1 left for control. At the end of June 9 insect species infesting the logs were found, among which the most frequent were Hylurgops palliatus (Gyll.) – 41,1% and Pityogenes chalcographus (L.) – 35,6%. The treated logs were less (sometimes – significantly) infested by the most frequently occurring species, but the difference between two variants of treatment was not very high. The logs exposed in sunny place were less infested than those stocked under stand canopy. As this environmentally friendly treatment reduced the infestation of logs by bark beetles (including I. typographus), it can be recommended especially for mountain areas under protection regime.

Źródło:

Sylwan; 2007, 151, 03; 52-58
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 98.

Tytuł:

Zastosowanie Siedliskowego Indeksu Glebowego dla terenów górskich (SIGg) w ocenie jakości siedlisk zamierających drzewostanów świerkowych
Application of the Soil Trophic Index for the mountain areas (SIGg) in the assessment of the quality of the dying spruce stands sites

Autorzy:

Januszek, K.
Małek, S.
Blońska, E.
Barszcz, J.
Chilarski, J.

Powiązania:

https://bibliotekanauki.pl/articles/989830.pdf

Data publikacji:

2015

Wydawca:

Polskie Towarzystwo Leśne

Tematy:

lesnictwo
tereny gorskie
drzewostany swierkowe
zamieranie lasow
siedliska lesne
jakosc
Siedliskowy Indeks Glebowy
site quality
mountain areas
norway spruce

Opis:

In recent years, we face a massive dieback of Norway spruce stands in Poland. The cause of this process may lay in the way of their monocultural silviculture. The correct assessment of the habitat conditions and soil properties in particular is the basis of the proper management of these forest areas. The aim of this study was to verify application of the trophic soil index for mountain areas (SIGg) in the assessment of site conditions for spruce stands with different health condition. Three types of spruce stands were distinguished: degenerated, weakened and stable. In total, 32 study plots were established in following forest districts in southern Poland: Ustroń, Wisła, Bielsko, Węgierska Górka, Jeleśnia, Ujsoły and Lądek Zdrój. The SIGg was calculated on the basis of <0.02 mm fraction content, the sum of exchangeable base cations, soil acidity and the total content of N and organic C in the humus−mineral horizon. These attributes are useful to determine the potential productivity of the soils did not differentiate visibly the analyzed stand variants. The soil in degenerated and weakened spruce stands showed higher degree of acidity and less the content of base cations compared to soils of stable spruce stands. Mountain trophic soil index can be applied in the assessment of the forest sites potential. Although it does not enable to monitor the disturbances in the nutrients circulation, the detailed analysis of its components allows for precise assessment of the forest sites status.

Źródło:

Sylwan; 2015, 159, 05; 419-426
0039-7660

Pojawia się w:

Sylwan

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 99.

Tytuł:

Preliminary assessment of the ecochemical condition of soils after fertilization of younger spruce Picea abies (L.) H. Karst. stands in the Beskid Slaski and Zywiecki Mts.

Autorzy:

Malek, S.
Januszek, K.
Barszcz, J.
Blonska, E.
Wanic, T.
Gasienica-Fronek, W.
Kroczek, M.

Powiązania:

https://bibliotekanauki.pl/articles/38500.pdf

Data publikacji:

2011

Wydawca:

Instytut Badawczy Leśnictwa

Tematy:

ecochemical condition
soil
fertilization
young tree
Norway spruce
Picea abies
tree stand
mountain
Beskid Slaski Mountains
Beskid Zywiecki Mountains

Opis:

The experimental plots were located in the middle forest zone (900– 950 m) on two nappes of the flysch Carpathians: Magura (the Ujsoły Forest District) and Silesian (the Wisła Forest District) in the spruce stands of age class 21– 40 years. Serpentinite was introduced in the autumn of 2008 on all plots while other fertilizers (N, P, NP and NPK) in the spring of 2009. Based on the chemical composition of soil solutions collected in lysimeters placed at the depth of 20 cm in the autumn 2008 and the spring and autumn 2009, ecochemical parameters were calculated: acid neutralization capacity (ANCaq), alkalinity (ALK), the degree of soil acidity (Ma%), acidic cations (Ma), saturation of the exchangeable complex of the soil solid phase (Mb) with alkalis, saturation with alkalis (BS), molar relations Ca/Al, Mb/Al, BC/Al. After the winter, soil solutions became acidic, especially in the Wisła Forest District. The saturation of the studied soils demonstrates moderate flexibility of soils in the Wisła Forest District in relation to acid load, and high flexibility of the Ujsoły soils. The opposite trend was observed for the degree of acidity of soils. Acid neutralization capacity and alkalinity of the waters showed significant variations in soil pH even in the case of small variations in the composition of the solution, if they were caused by the inflow of the anions of NO3 - and SO4 2-. After application of the fertilizers, an increase of Mg, Ca and Mb was noted in the soil solution, determined in the overlaying highly acidic organic horizons trough the ion-exchange buffering mechanism of highly protonated functional groups with high buffering capacity. Highly improved content of Mg in a soil, and in some cases – also the content of N, P and K, present potential improvement of forest growth capacity without the hazard of adverse side-effects of liming. Aluminum stress in the spruce is unlikely, while trees in the control plots in the Wisła Forest District may already be sensitive.

Źródło:

Folia Forestalia Polonica. Series A . Forestry; 2011, 53, 2
0071-6677

Pojawia się w:

Folia Forestalia Polonica. Series A . Forestry

Dostawca treści:

Biblioteka Nauki

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Skocz do pozycji: 100.

Tytuł:

Structure of embryogenic tissues and accumulation of storage materials in somatic embryos of Picea abies and P. omorika

Autorzy:

Hazubska-Przybyl, T
Bojarczuk, K.
Guzicka, M.

Powiązania:

https://bibliotekanauki.pl/articles/41109.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Dendrologii PAN

Tematy:

Picea abies
Picea omorica
tissue
spruce
development
starch grain
lipid body
embryogenic tissue
storage material
somatic embryo
plant tissue

Opis:

Microscopic analysis of embryogenic tissues of Picea abies and P. omorika showed that the tissues differed in proportions of various types of proembryogenic masses, and in presence/absence of early somatic embryos, which suggests that they differed in embryogenic potential. On the basis of this study, embryogenic competence of tissues can be assessed at early stages of somatic embryogenesis, and thus the most efficient lines can be selected (one Picea abies and two P. omorika). In the course of development of somatic embryos embryogenic tissue was placed on a medium with abscisic acid (ABA), which affects an increase in osmotic pressure at the stage of maturation of somatic embryos and finally on the regeneration of cotyledonary embryos. In this stage of embryos development, storage materials were accumulated, which are used in specific metabolic processes during embryo development.

Źródło:

Dendrobiology; 2008, 60; 19-28
1641-1307

Pojawia się w:

Dendrobiology

Dostawca treści:

Biblioteka Nauki

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