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Wyświetlanie 1-15 z 61
Tytuł:
Экологические характеристики возрастных рядов культуры и насаждений естественного происхождения сосняков мшистых в заказнике «Гродненская Пуща»
Ecological characteristics of the age series of culture and natural origin plantations of mossy pine forests in the reserve “Grodnenskaya Pushcha”
Autorzy:
Ивановна Садковская, Анна
Викторович Созинов, Олег
Powiązania:
https://bibliotekanauki.pl/chapters/31342664.pdf
Data publikacji:
2022
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
age range of tree-stands
environmental factors
Grodno Forest
mossy pine forest
ordination
Pinetum pleuroziosum
reserve
Opis:
The studies were carried out in 2019 on the territory of the landscape reserve Grodnenskaya Pushcha (Grodno region, Belarus) in which 26 natural and artificial communities of pine forests with mosses (Pinetum pleuroziosum) were studied on a age range from 5 to 113 years, using the trial plot method (400 m 2). Phytoindication of ecological regimes on the scales proposed by H. Ellenberg showed a tendency to decrease illumination, moisture, and trophy and an increase in acidity in the age range of pine forests with mosses. The ecological interpretation of the components (the Principal Component Analysis) of the studied pine forest communities showed that the main factors responsible for the formation of the time series of natural and artificial pine forests with mosses are forestry activities, illumination regime, and soil trophy.
Źródło:
Lasy przyszłości. Wyzwania współczesnego leśnictwa; 89-99
9788367185462
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wskaźnikowa analiza stanu lasów karpackich w latach 1967−2006
Indicator analysis of the Carpathian forest condition in the years 1967-2006
Autorzy:
Zięba, S.
Powiązania:
https://bibliotekanauki.pl/articles/1008929.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Karpaty
lasy gorskie
gospodarka lesna
zasoby lesne
struktura zasobow lesnych
wiek drzewostanu
zasobnosc drzewostanu
struktura przerebowo-zrebowa
analiza wskaznikowa
forests of the carpatians
timber resources
average age
forests beyond regeneration time
Opis:
The paper is an attempt to evaluate the forest management pursued in the mountains on the basis of the analysis of the volume and structure of Carpathian forest resources in the space of nearly forty years, i.e. from 1967 till 2006. The studies comprised 68 forest divisions (previously having the rank of forest districts) covering an area of 467,226 hectares of forests administered by the State Forests National Forest Holding and forests of the Forest Experimental Station in Krynica. The same research method and research material as in 1967 were used for the comparison of the results. The material included overall inventory results obtained from individual forest divisions, so−called "tables of age classes by dominant species".
Źródło:
Sylwan; 2010, 154, 07; 478-487
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Current state and productivity of age-old experimental plantations of prof. V.D. Ogievsky in the northeastern part of Ukraine
Autorzy:
Zhezhkun, M.
Demianenko, L.V.
Powiązania:
https://bibliotekanauki.pl/articles/2040994.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
Scots pine
natural stands
forest plantations
productivity
health condition
Opis:
This research is aimed at determining the health condition and productivity of Scots pine (Pinus sylvestris L.) stands created during 1906–1908 on the initiative of Prof. V. D. Ogievsky. The scheme of silvicultural experiments included: determining the influence of different widths and directions of clear felling on the natural regeneration, testing of pine plantations of pure and mixed composition and the choice of methods for their creation. In terms of health condition, 103–105-year-old artificial pine stands are weakened and their health condition is slightly worse compared to the aged pines of natural origin. The productivity of age-old linden-pine plantations is higher than of pure pine plantations, and the stock of stem wood in plantations created by seed sowing and marketability is higher compared to the plantations created by planting seedlings.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 3; 195-202
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Najstarsze świerki w Puszczy Białowieskiej
Issledovanija maksimal’nogo vozrasta eli v Belovezhskojj Pushhe
Studies of peak age of spruce trees (Picea excelsa L.) growing in Bialowieza Forest
Autorzy:
Zabek, J.
Zareba, R.
Powiązania:
https://bibliotekanauki.pl/articles/813493.pdf
Data publikacji:
1957
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1957, 101, 05
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Who applies for afforestation subsidies? Analysis of the age of beneficiaries of the Rural Development Program from 2004-2018
Autorzy:
Wysocka-Fijorek, Emilia
Gil, Wojciech
Gołos, Piotr
Dobrowolska, Ewelina
Powiązania:
https://bibliotekanauki.pl/articles/2041487.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
afforestation
non-forest land
Rural Development Programme (RDP)
afforestation subsidies
private forests
Opis:
In Poland, the afforestation rate is slowing down from year to year. An analysis of the demographic structure of land owners suitable for afforestation may contribute to a better recognition of trends and needs in order to increase the effectiveness of National Programme for the Augmentation of Forest Cover implementation, and thus increase interest in RDP activities. The aim of the study was to verify whether interest in afforestation among farmers is the same across the country in different age groups. The data presented in the publication come from the resources of the Agency for Restructuring and Modernization of Agriculture (ARiMR). The data covered the years 2004–2018 and were sorted by: voivodships (16), age group of beneficiaries of subsidies (4 groups), year of submitting the application (15 years) and the number of applications submitted. Beneficiaries were divided into four age groups: up to 30 years old, 31–40 years old, 41–60 and older than 60 years. Interest in afforestation changed in the period after Poland’s accession to the European Union. In recent years, there has been a significant decrease in the number of applications for afforestation subsidies submitted. There are also significant differences between the voivodships in the number of applications submitted. Farmers from eastern and southern Poland are more active in submitting applications for afforestation, and will reduce the so-called Recovered Territories in the western, northern and north-eastern part of Poland. Most afforestation in the entire analysed period is carried out by farmers aged 41–60 years. In the initial period, more applications were submitted by farmers of age over 60 years. In recent years, however, young farmers, that is, up to 40 years, are more interested in afforestation, than other groups. To increase interest in afforestation, more support should be directed to young farmers who, as part of farm specialization, may receive additional incentives for afforestation of land that is less useful to them.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2020, 62, 4; 279-287
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nietoperze w Puszczy Niepołomickiej
Bats in Niepolomicka Forest
Autorzy:
Wojciuch-Płoskonka, M.
Powiązania:
https://bibliotekanauki.pl/articles/985679.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lasy
fauna
nietoperze
Chiroptera
sklad gatunkowy
Puszcza Niepolomicka
bats
forest types
age class
echolocation
Opis:
The objective of the study was to recognise the species composition of bats in two forest stands that differ in terms of habitat type and age class. The study was carried out in the Niepołomicka Forest (southern Poland). An ultrasound ‘time−expansion’ processing system with Pettersson D240× detector was used to identify bat species by their echolocation signals employing SonoBat v.2.9.7 software to analyse bioacoustic spectrograms. We set up 36 recording points located in: old−growth and young plantations within the hygric mixed coniferous forest type (Pino−Quercetum) and hygric deciduous forest type (Tilio−Carpinetum). The measurements were carried out in July 2013, from 8:30 PM to 0.00 AM. The occurrence of nine species of bats were documented (tab.) of which Pipistrellus pygmaeus, P. pipistrellus, Barbastella barbastellus, Myotis myotis, M. emarginatus, and M. daubentonii had not been previously recorded in the Niepołomicka Forest. P. pipistrellus, M. emarginatus, M. daubentonii, and E. serotinus were recorded only in old−growths, whereas Nyctalus leisleri, N. noctula, and P. pygmaeus were found within both habitat types. Only two of the species identified in the study (M. myotis, and B. barbastellus) occurred both in the plantations and old−growth of hygric deciduous forest as well as in hygric mixed coniferous forest. None of the detected species was recorded exclusively in old−growth of hygric mixed coniferous forest type. The occurrence of a given bat species in the studied forest habitats and age classes of forest stands can be associated with the availability of prey, divergent feeding strategies, and with the adaptations affecting the nature of flight and ways of locating prey. The obtained results widened the knowledge of the species composition of bat fauna in the Niepołomicka Forest. At least 13 bat species live here. Apart from the nine species found in this study, four other species were found there in past years (Plecotus auritus, M. bechsteinii, M. brandtii and M. mystacinus).
Źródło:
Sylwan; 2019, 163, 04; 348-352
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie wieku dojrzałości rębnej drzewostanów sosnowych I bonitacji na przykładzie Obrębu Wilcze Bagno (Nadleśnictwo Pisz)
Determination of the rotation age in Scots pine stands of 1st site index class on the example of Wilcze Bagno Management Unit (Pisz Forest District)
Autorzy:
Stępień, E.
Lewandowska-Gross, M.
Powiązania:
https://bibliotekanauki.pl/articles/991503.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gospodarka lesna
drzewostany sosnowe
dojrzalosc rebna
dojrzalosc techniczna
drzewostany I bonitacji
Obreb Wilcze Bagno
Nadlesnictwo Pisz
scots pine
production target
rotation age
traditional criteria
financial indicators
Opis:
The paper presents determination of the rotation age in Scots pine stands of 1st site index class on the example of Pisz Forest District (northern Poland). The development of quantitative and qualitative changes in the structure of 10 stands, forming a homologous series ranged between 40 and 130 years was the basis for determining their rotation age. Stand maturity for cutting was determined taking into account three variants of production targets considered alternatively. Traditional criteria and financial indicators were adopted to determine the rotation age. The traditional criteria included the absolute yield of a given variant, the average yield of an assortment per hectare and per year and the percentage share of each assortment group in relation to the growing stock of stands. The financial criteria included the assortment value of the considered variants of production targets, the average change in the value of these assortments, the percentage share of each assortment group in relation to the total growing stock and the average price of one cubic meter of the selected assortments groups.
Źródło:
Sylwan; 2013, 157, 07; 526-532
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przemiany ubogich siedlisk borowych a aktualny stan roślinności runa w drzewostanach sosnowych kolejnych klas wieku w Nadleśnictwie Bolesławiec
Consistency in the classification of oligotrophic forest sites and forest vegetation in Scots pine stands of successive age classes in Boleslawiec Forest
Autorzy:
Stefanska-Krzaczek, E.
Powiązania:
https://bibliotekanauki.pl/articles/46321.pdf
Data publikacji:
2011
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Nadlesnictwo Boleslawiec
typologia lesna
siedlisko boru suchego
przemiany siedliska
drzewostany sosnowe
klasy wieku
runo lesne
sklad gatunkowy
zmiany skladu gatunkowego
bor chrobotkowy
zanikanie siedlisk
Źródło:
Leśne Prace Badawcze; 2011, 72, 1
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost różnorodności gatunkowej chrobotków jako efekt rębni zupełnej na ubogich siedliskach borowych
Increase of Cladonia species diversity as a consequence of clear-cutting in nutrient-poor forest sites
Autorzy:
Stefańska-Krzaczek, E.
Faltynowicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/994072.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
siedliska borowe
siedliska oligotroficzne
rebnie zupelne
drzewostany sosnowe
chrobotek
Cladonia
wystepowanie
roznorodnosc gatunkowa
scots pine forest
managed forest
ground lichens
stand age classes
Opis:
Clear−cutting impacts site conditions seriously. However, in nutrient−poor sites the effects of stand removal can be minor than in nutrient−rich sites. The aim of this work was to assess whether the clear−cut can improve species diversity of ground Cladonia species, which decline has been observed in forest communities. In stands of different age classes (≤10, 11−20, 21−40, 41−60, 61−80, ≥81 years) in the Przymuszewo Forest District (northern Poland) ground Cladonia species and their cover were recorded on research plots (10×15 m). A total of 24 species were identified in the study area. There were more Cladonia species and they were more abundant in young stands (<20 years old) than in stands older than 60 years. Nine species are significantly more frequent and demonstrated high fidelity in young stands and only one was characteristic for old stands. Composition of Cladonia species depended primarily on stand age and subsequently on canopy or bryophyte cover. In nutrient−poor sites clear−cutting is favourable for Cladonia species diversity.
Źródło:
Sylwan; 2013, 157, 12; 929-936
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic site index model and trends in changes of site productivity for Alnus glutinosa (L.) Gaertn. in southern Poland
Autorzy:
Socha, Jarosław
Ochał, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/956987.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
height growth model
height-age relationship
forest site
evaluating site productivity
alder
Opis:
Black alder is naturally widespread across all of Europe and has an increasing importance for forest ecosystems. Thanks to the considerable tolerance to adverse climatic and edaphic environmental conditions black alder is important both in open landscapes and can also be involved in the rehabilitation of disturbed soils. Assessment of site productivity is essential for providing a frame of reference for silvicultural diagnosis and prescription in order to ensure the sustainability of existing and newly established ecosystems. The most accepted method of evaluating site productivity is the site index (SI). The aim of the presented research was to develop the SI model for black alder in southern Poland. The developed SI model was used as a tool in order to test the research hypothesis assuming the increase in site productivity for black alder in southern Poland. The research material for development of SI model were stem analysis data from 180 research plots. Both, the local model parameter, which was estimated individually for every tree, and the other parameters estimated globally for the whole data set were estimated simultaneously. Changes in site productivity were analyzed on research plots and a set of 12,974 stands from the forest inventory database. Site indices calculated using the developed model are negatively correlated with age/ positively correlated with establishment year of the stands. This confirms the existence of the phenomenon of increasing site productivity for black alder. During the last century site productivity measured with site index increased on average 5 m. Therefore, black alder that belongs to the fast-growing tree species should be considered of the increasing importance for forest management.
Źródło:
Dendrobiology; 2017, 77; 45-57
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamiczne krzywe bonitacyjne dla drzewostanów sosnowych Puszczy Niepołomickiej
Dynamic site index curves for Scots pine stands in Niepolomice Primeval Forest
Autorzy:
Socha, J.
Orzeł, S.
Powiązania:
https://bibliotekanauki.pl/articles/973666.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
krzywe bonitacyjne
leśnictwo
Puszcza Niepołomicka
bonitacja drzewostanów
site index model
base−age invariant
height growth
Pinus sylvestris L.
Opis:
The aim of the research was to evaluate, under the conditions of the Niepołomice Primeval Forest, the usefulness of site index models applied in forest practice in Poland and to develop a local system of site index curves for Scots pine. The research materials included measurement results for the trees growing on 74 circular, 0.05 ha sample plots. On the basis of the completed analyses, the age−related change in stand heights in the Niepołomice Primeval Forest is different than the height growth described by means of the site index models used in forest practice in Poland. As a result of several−stage analyses, a dynamic system of site index curves was developed for the Niepołomice Primeval Forest allowing calculation of the site index, as well as forecast of the height of stands at any age.
Źródło:
Sylwan; 2011, 155, 05; 301-312
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza zależności struktury lasu od wieku na przykładzie drzewostanów sosnowych
Analysis of forest structure in relation to age – Scots pine case study
Autorzy:
Sławski, M.
Powiązania:
https://bibliotekanauki.pl/articles/973837.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
starodrzew
struktura drzewostanu
wiek drzewostanu
zmiany struktury drzewostanu
leśnictwo
forest structure
old−growth
pine forest
Opis:
Structure of pine forests develops with age and becomes more complex in older stands. Key attributes of old−growth forest structure include presence of huge trees, coarse woody debris, hollow trees, trees with fungi, clearings, two or more layered structure. In total, 26 attributes show positive correlation with age. This set can be used as base for old−growthness index. Cluster analysis divided forest stands into four groups with different level of maturity. Stands older than 160 years occurred fully developed. It seams that in sustainable forestry attributes of old−growth forests can be maintained as key elements for biodiversity.
Źródło:
Sylwan; 2011, 155, 01; 10-20
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wartość rekreacyjnej funkcji lasu w świetle wyników ogólnopolskiego badania opinii społecznej
Value of leisure-related function of forest in view of the results of nationwide survey in Poland
Autorzy:
Skłodowski, J.
Gołos, P.
Powiązania:
https://bibliotekanauki.pl/articles/989348.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
funkcje lasu
funkcje rekreacyjne
wartosc rekreacyjna
hipotetyczna gotowosc finansowania
opinia spoleczna
badania ankietowe
ce method
wtp
education
age
respondents' financial situation
forest management for tourist purposes
Opis:
Driven by social and economic changes, which have taken place for the last 30 years, the European forest management objectives have been redefined. By the action of public opinion, forest management, increasingly frequently and in a broader range, focuses on public benefits from forests. One of the most important functions is the possibility of leisure and recreation in the forest. The purpose of the research was the analysis of the hypothetical readiness to finance the leisure−related function of forest based on WTP (Willingness To Pay) amount. A question, which enabled the assessment of a social value of leisure−related function of forest, was asked to a random−quota sample of 1000 people over 18 years of age during the nationwide survey carried out in 2013 by TNS Polska. Out of 1000 respondents, the WTP>0 was declared by 29% respondents. Surveyed persons indicating forest with poorer infrastructure declared higher values calculated per household (PLN 13.59 ±0.84) than respondents who selected a better managed forest (PLN 12.86 ±0.88, PLN 12.91 ±1.46). The average WTP amount per person for respondents with the university degree (bachelor and master degree) was PLN 6.23 ±0.48, whereas for respondents with lower education, it was on the level of PLN 5.26 ±0.25. The average WTP also depended on the age of respondents. It was PLN 11.42 ±1.43 for 20−year−olds per family, whereas for 40−year−olds it was PLN 14.16 ±1.05. The average WTP per person increased along with the age of respondents; from PLN 4.37 ±0,42 (20−year−olds) to PLN 6.00 ±1.11 (80−year−olds). Disregarding the top WTP value per household of respondents in the worst financial situation (20.00 ±10.00), the average WTP value per household increased from PLN 10.26 ±1.69 (in poor financial situation) to PLN 14.55 ±2.97 (very well−off).
Źródło:
Sylwan; 2016, 160, 09; 759-766
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sprawozdanie z konferencji naukowej na temat wieku rębności drzewostanów sosnowych na Pojezierzu Mazurskim, zorganizowanej w ramach 60 Zjazdu Polskiego Towarzystwa Leśnego. Olsztym 24-25 września 1960 r.
Report on the scientific conference, held in Olsztyn september 24 - 25, 1960, organized at the 60-th Congress of the Polish Forest Society, to discuss the topic of the Cutting age of pine stands in Mazurian Lake District
Autorzy:
Sikora, B.
Powiązania:
https://bibliotekanauki.pl/articles/820896.pdf
Data publikacji:
1961
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1961, 105, 05
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 61

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