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Wyświetlanie 46-59 z 59
Tytuł:
Uszkodzenia drzew w nizinnych drzewostanach świerkowych podczas zabiegu trzebieży późnej
Tree damage in lowland spruce stands because of late thinning
Autorzy:
Bembenek, M.
Giefling, D.F.
Karaszewski, Z.
Mederski, P.S.
Szczepańska-Alvarez, A.
Powiązania:
https://bibliotekanauki.pl/articles/993989.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
uzytkowanie lasu
drzewostany nizinne
trzebiez pozna
pozyskiwanie drewna
metody pozyskiwania drewna
drzewostany swierkowe
swierk
uszkodzenia drzew
norway spruce
tree damage
thinning operations
Opis:
The paper studies tree damage after late thinning operation in lowland spruce stands. The research was done in the 4ͭʰ age class stands, where three different methods of timber harvesting were applied: full tree system (FTS), long wood system (LWS), short wood system (SWS). The lowest level of damage was observed in SWS.
Źródło:
Sylwan; 2013, 157, 12; 892-898
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitochondrial and nuclear DNA differentiation of Picea abies populations in Poland
Autorzy:
Nowakowska, J A
Powiązania:
https://bibliotekanauki.pl/articles/40976.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
Polska
mitochondrial DNA
nuclear DNA
plant population
microsatellite marker
post-glacial migration
Opis:
The natural stands of Norway spruce in Poland are split between the southern and the northeastern parts of the country. Two so-called "spruceless" zones separate the northern spruce locations from those in the south, one "spruceless" zone is situated in Central Poland, and the other one in the Beskid Mts. Mitochondrial (STS) and nuclear (SSR) markers were used to perform the genetic identification of Norway spruce. Four different variants of haplotypes, "a", "b", "c" and "d", were found to occur in the nad1 locus of STS markers. Populations from the northern range of Picea abies distribution in Poland harboured exclusively haplotypes "c" and "d", except for the Białowieża population which had haplotypes "a" and "c". Populations from the "spruceless" zones contained four types of haplotypes whilst those from southern Poland were mostly composed of haplotype "a". High mean gene diversity was observed for both STS and SSR markers (HT = 0.529, and HT = 0.851, respectively). The total genetic differentiation of Norway spruce populations was very low (FST= 0.088). Two main groups of populations were distinguished in the dendrogram defined by Nei's genetic distances based on microsatellite markers. The distribution of the genotypes was scattered and did not show any connection with the spatial distribution of P. abies in Poland. Only the mtDNA markers were able to differentiate the northern populations of Norway spruce from the southern ones, proving the historical separation between the Baltico-Nordic and the Hercyno-Carpathian ranges of P. abies in Poland. By contrast, the microsatellite data suggested an overlap between the genotypes due to the human manipulation of Norway spruce stands in the past.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sustainability of Picea abies of Istebna provenance in Dupniański Stream catchment as dependent on stand age class
Autorzy:
Malek, S
Powiązania:
https://bibliotekanauki.pl/articles/41396.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
sustainability
provenance
Dupnianski Stream catchment
stand age class
Silesian Beskids Mountains
Polska
Opis:
Ecochemical indexes such as soil buffer reaction (pH), acid neutralising capacity (ANCaq), alkalinity (ALK), soil acidity (Ma%), basic cation saturation (BS), and molar ratios Ca:Al and BC:Al were used to study the sustainability of Norway spruce of Istebna provenance in stands differing in age class. The data were obtained from the research conducted in the Dupniański Stream catchment in the Silesian Beskid Mts. (Poland). The acid neutralising capacity, alkalinity, and soil acidity were found to depend on the age of spruce stands. The increased acidification of deposits was due to the presence of sulphate and nitrate ions which were washed out from the surface of plants. Passing through the canopy caused a decrease in the acid neutralising capacity, alkalinity, and base cation saturation, and an increase in the soil acidity, with the values being dependent on stand age. The soil acid reaction shifted to the range of the aluminium and iron bufferness, but the Ca:Al and BC:Al ratios were still above the level when aluminium stress is probable. The washout of the basic cations beyond the spruce root system, and the low levels of exchangeable Mg2+ and Ca2+, basic cation saturation of soil water, and effective base saturation of soil may affect the vitality and health of spruce stands in the future. To maintain the sustainability of Norway spruce stands of Istebna provenance in the Dupniański Stream catchment it is necessary to increase the retention of basic elements, especially Mg2+ and Ca2+, by means of stand conversion or fertilisation.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategy for long-term breeding of Picea abies in Lithuania: short overview
Autorzy:
Danusevicius, D
Powiązania:
https://bibliotekanauki.pl/articles/41309.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
long-term breeding
Lithuania
breeding strategy
future strategy
breeding programme
gene conservation
Opis:
This paper presents the newly suggested long-term breeding strategy for Norway spruce in Lithuania to share with the optimisation approach, which may be useful in synchronising the long-term breeding and gene conservation plans in neighbouring regions. The breeding programme in Lithuania is at a stage where the long-term plans need to be developed. Our strategy is to proceed with a closed-nucleus breeding population which is structured into subpopulations according to adaptation zones (4-5 subpopulations). The size of each subpopulation is 50 unrelated and progeny-tested individuals. The breeding cycle consists of double- pair mating and a balanced within-family selection forward. The candidates will be clone-tested. Advanced genotypes will be selected into an advanced nucleus; an isolated foreign breeding population is planned. Positive assortative mating is used for deployment. An experimental "shuttle-breeding" strategy may be tested: selection with avery high intensity, controlled crosses, nursery tests for vigour and growth rhythm, cloning by hedges into short-rotation clonal plantations.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic structure of Picea abies populations growing on extreme sites as revealed by isoenzyme markers: a case study from Slovenia and Bosnia and Herzegovina
Autorzy:
Ballian, D
Bogunic, F.
Bozic, G.
Powiązania:
https://bibliotekanauki.pl/articles/41007.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
plant population
genetic structure
extreme site
isoenzyme marker
genetic variation
gene polymorphism
forest tree
Slovenia
Bosnia and Herzegovina
forest community
Sphagno-Piceetum community
Opis:
Three populations of Norway spruce from ecologically extreme environments in Slovenia and Bosnia and Herzegovina were examined for genetic polymorphism. The spruces there grow in specific forest communities (Sphagno-Piceetum) which represent the remnants of the post-glacial vegetation. The aim of the study was to search for similarities in the genetic variation among populations adapted to such conditions. In total, 10 isoenzyme systems involving 16 gene loci were analysed. The results showed differences in genetic differentiation at loci Got-B, Skdh-A and 6-Pgdh-C between the two Slovenian populations and the Bosnian population, but also indicated an interestingly close relationship between the Slovenian population Pohorje and the Bosnian population Nišići.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Picea abies in Northrhine-Westphalia
Autorzy:
Schmitt, H P
Heyder, J.
Powiązania:
https://bibliotekanauki.pl/articles/40997.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
plant survival
survival
genetic resource
seed storage
seed orchard
Sauerland region
Westphalia
Germany
Opis:
The Sauerland region of southern Westphalia has the most economic stands of Norway spruce in the state of Northrhine-Westphalia (Germany). As shown by historical research and genetic analysis, the seeds for these stands were imported from Thuringia around the year 1880. Therefore, the two states are collaborating closely to secure the genetic variety of the spruce and develop new sources of seed supply. The survival of the Hochsauerland Norway spruce is now under threat: these stands have already been harvested or are due for harvesting shortly, in addition, many of the older stands were destroyed by the gale "Kyrill" in 2007, and only a few stands have remained. Since its foundation, the Forest Gene Bank of Northrhine-Westphalia has taken the following measures to preserve the gene pool of the Hochsauerland spruce and conserve it in the long term: storage of seed from 100 representative trees in all the most valuable stands of spruce (since 1985); establishment of seed orchards; and establishment of replacement stands. Thanks to those measures, the genetic information of the Norway spruce stands of Thuringian origin has been secured, and substantial stocks of seed are available for reforestation.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utility of two mitochondrial markers for identification of Picea abies refugial origin
Autorzy:
Litkowiec, M
Dering, M.
Lewandowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/41333.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
coniferous plant
tree
Norway spruce
Picea abies
mtDNA
molecular marker
mitochondrial marker
identification
polymerase chain reaction
RFLP analysis
gene pool conservation
forest ecosystem
plant population
Opis:
Picea abies (L.) Karst is one of the most important coniferous species of Europe from both ecological and economical points of view. Traditional methods for the gene pool conservation and biodiversity maintenance in forest ecosystems have been practiced in many countries. For progress in this field using highly polymorphic genetic molecular markers is needed. Our goal was to demonstrate the utility of two polymorphic mitochondrial markers mt15-D02 and nad1 b/c in identification native Norway spruce stands. This molecular markers were tested in 1401 individuals from 59 Polish Norway spruce populations. We detected three alleles, which are called1, 2 and3, for locus mt15-D02 and two alleles , which are called1 and2, for locus nad1 b/c in our material. All five variants of alleles indicate the natural origin of P. abies. Result of this study shows that molecular marker mt15-D02 is easy to use and more informative in compare to marker nad1 b/c.
Źródło:
Dendrobiology; 2009, 61; 65-71
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Root system development in two provenances of Picea abies at two different sites
Autorzy:
Mauer, O
Palatova, E.
Beran, F.
Powiązania:
https://bibliotekanauki.pl/articles/41607.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
root system architecture
skeletal root
fine root
root system development
provenance
biomass
vitality
length
Opis:
The paper examines the development of the root system (both skeletal and fine roots) in 19-year-old Norway spruce (Picea abies (L.) Karst.) of two provenances (from altitudes 320 m and 1100 m), growing on two plots (540 m a.s.l., lowland, modal Cambisol; 820 m a.s.l., slope, ranker podzol), by comparing 34 parameters. The results show that the root system emergence is not affected by provenance but rather by site, namely by soil type and terrain slope. At an altitude of 540 m, both provenances produced an anchoring root system of circular floor projection with a rooting depth of 80 cm, while at an altitude of 820 m they had an elliptical superficial root system with a rooting depth of 45 cm. At the higher-situated plot, the provenance from an altitude of 1100 m showed a higher biomass, vitality, and specific length of fine roots.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ochrona przyrody i gospodarka leśna w Puszczy Białowieskiej : Brak kompleksowej strategii działania
Nature Protection and Forest Management in the Białowieska Forest – Illegal Felling of Trees and Lack of Supervision by Competent Bodies
Autorzy:
Krzywicka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2042189.pdf
Data publikacji:
2020-10
Wydawca:
Najwyższa Izba Kontroli
Tematy:
Puszcza Białowieska
ochrona przyrody
gospodarka leśna
drzewostany
obszary chronione
wycinka drzew
kornik drukarz
Białowieska Forest
nature protection
forest management
tree stands
protected areas
logging
spruce bark beetle
Opis:
Białowieski Park Narodowy należy do światowego dziedzictwa UNESCO od 1979 r. W 1992 r. jego obszar powiększono o białoruską część Puszczy Białowieskiej, a w 2014 r. ponownie go poszerzono. Obecnie obejmuje cały jej teren po obu stronach granicy o powierzchni 141 885 ha. Obowiązkiem Polski jako strony Konwencji UNESCO z 1972 r. dotyczącej Światowego Dziedzictwa Kulturalnego i Naturalnego jest ochrona Puszczy przed zniszczeniem i zachowanie jej w niezmienionej postaci dla przyszłych pokoleń. Z ustaleń kontroli NIK wynika jednak, że w latach 2008–2018 nie opracowano opartej na merytorycznych podstawach strategii prowadzenia gospodarki leśnej w Puszczy, która służyłaby jej ochronie. Prowadzenie cięć w drzewostanach zagrożonych obecnością kornika drukarza nie zawsze było zaś poprzedzone wnikliwą oceną ich wpływu na siedliska i gatunki chronione.
The Białowieska Forest is one of Poland’s ten UNESCO Biosphere Reserves, which protect unique nature and cultural values of the area. In 2008, the Polish part of the Białowieska Forest was covered with the Natura 2000 PLC200004 protection. Therefore, it is a unique area, where forest management calls for special care and respecting of regulations on nature protection. However, as a result of the decisions on increased felling of trees, justified with the intention to reduce massive attacks of the European spruce bark beetle, on 20th July 2017 the European Commission filed a complaint to the EU Court of Justice claiming Poland had failed to meet the requ irements stemming from the Bird Directive and the Habitats Directive. On 17th April 2018, the Court of Justice confirmed the stance of the Commission. As a result, from July 2018 to January 2019, the Supreme Audit Office of Poland conducted the audit to check whether forest management in the Białowieska Forest was compliant with the law, including nature protection requirements.
Źródło:
Kontrola Państwowa; 2020, 65, 5 (394); 33-44
0452-5027
Pojawia się w:
Kontrola Państwowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lata wskaźnikowe świerka pospolitego w Beskidach Zachodnich
Pointer years of Norway spruce in the Western Beskidy Mountains (southern Poland)
Autorzy:
Wilczyński, S.
Szymański, N.
Powiązania:
https://bibliotekanauki.pl/articles/991365.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
gory
Beskidy Zachodnie
drzewa lesne
swierk pospolity
przyrost drzew
sloje przyrostu rocznego
przyrost grubosci
czynniki klimatyczne
lata wskaznikowe
tree rings
pointer years
norway spruce
western beskidy mountains
altitudinal zone
Opis:
The frequency of site and zonal pointer years in Norway spruce in two altitudinal zones (500−900 m and 900−1370 m a.s.l.) in the Western Beskidy Mountains was analysed. In total, 32 tree stands were studied – 16 in each zone. In both zones number of negative site pointer years increased along with increase of number of positive site pointer years. Above 900 m a. s. l. number of site pointer years increased along with the altitude, while below 900 m a.s.l. their number decreased along with the altitude. We found no common pointer years for all 32 populations. In lower zone, short winter, early and very warm spring or high precipitation in June and July in a given year caused negative pointer years. In the upper one positive pointer years occurred after the warm autumn and in years with the warm growing season.
Źródło:
Sylwan; 2014, 158, 12; 883-892
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intra-population variability of Picea abies from Zwierzyniec Lubelski and Blizyn (Poland)
Autorzy:
Kowalczyk, J
Markiewicz, P.
Matras, J.
Powiązania:
https://bibliotekanauki.pl/articles/41233.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
international conference
Europe
forest ecosystem
plant breeding
tree
Norway spruce
Picea abies
intrapopulation variability
family variation
heritability
plant population
Zwierzyniec Lubelski region
Blizyn region
Kutno Forest District
Polska
Opis:
The study investigates the intra-population variability of the growth and quality traits of Norway spruce populations from Bliżyn and Zwierzyniec Lubelski. The two populations are included in the IUFRO 1972 experiment and exhibit a high growth dynamics and a narrow crown form. The research was carried out on the experimental plot established in 1996 in Chrosno (Kutno Forest District) using 8228 two-year-old seedlings planted in a single-tree plot design at a spacing of 1.5 × 1.5 m. The seedlings represent 191 open-pollinated families, among them 93 families of Norway spruce from the Bliżyn region and 98 families from the Zwierzyniec Lubelski region. The height, height increment and DBH of trees were measured periodically, and some quality traits were assessed. The last results come from the measurements done on the trees aged 10 years. It was found that the differences between the two populations of Norway spruce are statistically nonsignificant but both of them show wide within-population variability. This suggests that they have the potential to flexibly respond to future changes in the growth conditions or to seed transfer to other seed zones. Survival in the environmental conditions of the experiment was independent of family.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Participation of Poland in IUFRO studies on Picea abies
Autorzy:
Giertych, M
Powiązania:
https://bibliotekanauki.pl/articles/41545.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 test
Polska
research
International Union of Forest Research Organisations
IUFRO zob.International Union of Forest Research Organisations
Opis:
The paper outlines the history of international provenance experiments on Norway spruce (Picea abies (L.) Karst.) conducted in Poland, starting from the first attempt at establishing trials in 1938, which was interrupted by the war. The most important experiments so far have been the IUFRO 1964/68 and IUFRO1972 Inventory Provenance Tests with Norway Spruce.
Źródło:
Dendrobiology; 2009, 61 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic polymorphism of Polish strains of Gremmeniella abietina and Brunchorstia pinea var. cembrae
Autorzy:
Kraj, W
Powiązania:
https://bibliotekanauki.pl/articles/41508.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
coniferous tree
plant pathology
pine
spruce
fir
juniper
pathogen
plant disease
shoot blight
canker
branch
stem
Gremmeniella abietina
Brunchorstia pinea var.cembrae
needle
genetic polymorphism
Polish strain
host preference
polymerase chain reaction
RFLP analysis
Opis:
Thirty-three type A strains of G. abietina from diseased shoots or needles of P. sylvestris, P. nigra and P. armandii and three strains of Brunchorstia pinea var. cembrae from P. mugo were isolated from four regions of Poland differing with respect to climatic conditions. Genetic polymorphism of the mitochondrial small subunit rRNA (mtSSU rRNA), ribosomal RNA fragment including ITS1, 5.8S and ITS2 and glyceraldehyde phosphate dehydrogenase (GPD) gene was examined by the PCR-RFLP method. Genetic distance was ascertained with respect to B. pinea var. cembrae strains from G. abietina isolated from the examinedpine species (average Nei coefficient 0.137). The smallest genetic distance occurred between the strain groups of G. abietina isolated from P. nigra and P. armandii (0.059) and P. nigra and P. sylvestris (0.061), whereas the highest occurred between the groups of strains deriving from P. armandii and P. sylvestris (0.096). The impact of geographic distance on genetic distance between groups of strains from individual regions has been shown. G. abietina strains originating from mountainous areas were more distanced genetically (on average 0.031) from populations from other regions (Nei genetic distance 0.023). The main factors influencing genetic differences of the pathogen were specificity with respect to the species of the host plant and climate conditions, whereas geographic distance had lesser significance.
Źródło:
Dendrobiology; 2009, 61; 13-21
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reakcja przyrostowa świerka w powiązaniu ze stopniem uszkodzenia korony
Increment reaction of Norway spruce in connection with the crown damage level
Autorzy:
Bruchwald, A.
Dmyterko, E.
Powiązania:
https://bibliotekanauki.pl/articles/1016122.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
korony drzew
stopien uszkodzenia
Picea abies
lesnictwo
piersnice drzew
przyrosty roczne
przyrost drzew
swierk pospolity
drzewa lesne
increment of the diameter at the breast height
increment reaction
criteria of the assessment
the damage to trees
defoliation
vitality
tree−top condition
norway spruce
Opis:
The study presents the analysis of the increment of tree diameter at the breast height in connection with two variants of the method of assessment the damage to Norway spruce stands. Variants utilise different assessment criteria. The first one is based on the tree's defoliation, the other one – on the damage index W that links defoliation, condition of the tree−top and branching in the middle part of the crown. Detected relations between damage criteria and type of the increment reaction show that index W characterises the damage to trees and stands better than feature A (defoliation). Therefore, method of assessment the damage to trees and stands based on this parameter is suggested for utilisation in the forestry practice.
Źródło:
Sylwan; 2007, 151, 11; 22-34
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 46-59 z 59

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