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Wyszukujesz frazę "forest age" wg kryterium: Wszystkie pola


Tytuł:
Wood-inhabiting fungi on pedunculate oak coarse woody debris in relation to substratum quantity and forest age
Autorzy:
Irsenaite, R.
Powiązania:
https://bibliotekanauki.pl/articles/67408.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
Wood-inhabiting fungi on pedunculate oak (Quercus robur) coarse woody debris (CWd) was investigated in 50 plots of 0.1 ha in oak stands of different ages in Lithuania. In maturing stands (50-120 years) the average volume of oak CWdwas 4.7 m3 /ha, and in mature stands (over 120 years) – 13.9 m 3 /ha. Both in maturing and mature stands, the greatest fraction of CWdconsisted of fallen oak branches (81 % and 84 % respectively), whereas fallen trunks comprised about 10 % of the total units of CWd. In total 1350 records of 203 species (49 ascomycetes and 154 basidiomycetes) were collected during 2 years of investigation. species richness and abundance increased significantly with the increase of volume and abundance of CWd. Higher species richness was detected in mature stands than in maturing ones. Woodinhabiting species composition varied greatly at stand scale, and one third of all detected species occurred only in one plot. Redlisted fungi were found only in mature stands. We conclude that, even in managed oak stands, oak CWd maintains a rather diverse species composition of ascomycetes and basidiomycetes. However, the current practice of forestry in Lithuania of removing dying or dead wood of large volume, e.g. standing and fallen trunks, reduce the distribution of highly specialized, usually rare, and endangered fungi.
Źródło:
Acta Mycologica; 2007, 42, 2
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wieku drzewostanu na dostępność pokarmu danieli
Autorzy:
Borkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1178263.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dostepnosc pokarmu
daniel
zwierzeta lowne
lowiectwo
drzewostany
wiek drzewostanu
lesnictwo
fallow deer
forest age
food availability
Opis:
Influence of forest age on fallow deer food availability was studied in two localities in Poland. There were some differences between them, but in both cases pole−sized and mature stands were more abundant in food than the younger age classes. Fallow deer food availability was lowest in mature beech stands. Comparisons with other studies on this issue made in Poland showed that results are different depending on deer species considered. It comes from different food eaten by every species and abundance of various plants in forest age classes may follow different patterns. Besides, this study has shown that it is very hard to find general pattern of relation between forest age and deer food abundance for various regions, because this will depend on tree species dominating in the forest as well as forest management practices.
Źródło:
Sylwan; 2003, 147, 01; 88-95
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deforestation and its impacts on climate change an overview of Pakistan
Autorzy:
Ali, A.
Riaz, S.
Iqbal, S.
Powiązania:
https://bibliotekanauki.pl/articles/11968.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
climate change
deforestation
Pakistan
catastrophic event
forest age
natural factor
weather
industrialization
urbanization
global temperature
surface temperature
disaster
South Asia
Opis:
Forests are one the main natural factors that regulate and determine climate, weather patterns and amount of CO2 of an area. With rapid industrialization and rapid urbanization there is a significant increase in deforestation and as a consequence rise in global mean surface temperatures. Rapid and unchecked cut down of forest cover has resulted in some of the worst disasters during the last decades. This paper focuses on studying the role of deforestation, its influence on climate change phenomena and its consequences in Pakistan.
Źródło:
Papers on Global Change; 2014, 21
2300-8121
1730-802X
Pojawia się w:
Papers on Global Change
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamika i główne kierunki zmian w drzewostanach zagospodarowanej części Puszczy Białowieskiej
Dynamics and main direction of change in forest stands constituting the managed part of Bialowieza Forest
Autorzy:
Bruchwald, A.
Dmyterko, E.
Brzeziecki, B.
Powiązania:
https://bibliotekanauki.pl/articles/985942.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Bialowieska
drzewostany gospodarcze
dynamika drzewostanu
siedliska lesne
struktura drzewostanu
sklad gatunkowy
struktura wiekowa
miazszosc drzewostanow
przyrost miazszosci
abiotic and biotic threats
forest age structure
low−productivity stands
stand productivity
stand volume
stand stability
species composition
wind risk model
Opis:
The paper describes current (in years 2007−2017) changes of basic parameters of forest stands that constitute the managed part of Białowieża Forest (ca. 53,000 ha), divided into three forest districts: Białowieża (12,600 ha), Hajnówka (19,700 ha) and Browsk (20,400 ha). The investigated tree stands represent different phases of ecological succession, modified by silvicultural treatments and other human activities. The course of the succession processes is varied, depending, first of all, on local site conditions, consisting mainly of fresh sites (ca. 60%) – particularly fresh broadleaved forest, and encompassing exceptionally high fraction of wet and swamp sites (40%) – especially wet broadleaved forest site type. Most stands represent the intermediate, highly productive phase of succession, with spruce and oak as the dominant tree species. In particular, such stands are common in Białowieża and Hajnówka forest districts. Recently, the share of the mentioned stands is declining, most intensely in the Browsk Forest District. In 2017 alone, 430 ha of highly productive forest stands disappeared from the Białowieża Forest. The process of decay involved mixed stands; besides of spruces which were killed by a current bark beetle infestation, also many oaks, pines, birches, alders as well as rare and valuable minor tree species (such as ashes and maples) died. Dying spruce and, more often, oak stands are often replaced by low−productive hornbeam trees, occupying earlier lower stand strata in such stands. The resulting hornbeam stands are often distinguished by low crown closure and low productivity. Tree stands occurring in the Białowieża Forest are among the most endangered by wind damage stands in Poland. It means that in case of strong winds, several trees will be broken and/or uprooted. The intensity of such phenomena will be further increased by the high tree volume of stands as well as by the presence of many gaps in forest canopy, caused by a massive mortality of spruce trees. In general, one may expect that in the nearest future many stands occurring in the Białowieża Forest, built by different tree species, will be subject to a massive decay. The list of factors contributing to this process is long and involves, among other things, recurring droughts during the growing season, unfavorable changes in ground water table and increased frequency of strong winds. All these factors negatively influence the health status of trees, which further favours the development of parasitic fungi and insects. In consequence, there is a high probability that many areas in the Białowieża Forest will, for a long time, retain a treeless character and/or will be occupied by low−productive and single species hornbeam stands.
Źródło:
Sylwan; 2018, 162, 11; 897-906
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O wskaźnikach rozwoju drzewostanów
О показателях развития древостоев
On the indices of the age of forest stands
Autorzy:
Battek, J.
Powiązania:
https://bibliotekanauki.pl/articles/740549.pdf
Data publikacji:
1959
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Applicationes Mathematicae; 1958-1959, 4, 4; 281-299
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępna charakterystyka chiropterofauny lasów Puszczy Napiwodzko-Ramuckiej - skład gatunkowy, struktura wiekowa oraz płciowa
Characterystic of bat fauna in Napiwodzko-Ramucka forest - species composition, age and sexual structureinitial reports
Autorzy:
Karabowicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/882692.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
Puszcza Napiwodzko-Ramucka
lasy
fauna
nietoperze
Chiroptera
sklad gatunkowy
struktura wiekowa
struktura plciowa
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2016, 18, 4[49A]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie lasu w dobie wyzwań środowiskowych i społecznych - planowanie regionalne
Forest management in the age of environmental and social challenges - regional planning
Autorzy:
Jaszczak, R.
Bańkowski, J.
Kowalczyk, B.
Powiązania:
https://bibliotekanauki.pl/articles/978926.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
spatial planning
Functional Forest Areas
Regional operational programs
Opis:
In the era of sustainable and multifunctional forestry, special efforts should be made to designate areas having the status of (multi)functional forest areas (MFA) and to include them in a special development plans. Their operational goals should be: to increase the acreage, to prevent further fragmentation and to preserve the spatial communication between them. Only such an approach will ensure the relative stability of ecosystems and their protection against anthropogenic degradation. Determining the MFA boundaries would certainly facilitate their space management as well as planning and furnishing activities. People responsible for given spatial units would also be able to determine parities of activities and develop optimal solutions in terms of land development, including the socio−economic development of the region. The concept of MFA delimitation and strengthening is consistent with the EU sustainable development strategy, whose provisions refer to the creation of large−scale natural functional areas. The paper objectives was to discuss the legal status of spatial planning in relation to forests and to propose MFA distinguishing and developing regional operational programs for them. It is urgent and necessary to consider the authorities responsible for forest management (relevant units of the State Forests) as authorized to comment on drafts of conditions and directions of spatial development of municipalities or local and regional spatial development plans. It may improve the effectiveness of spatial planning as one of the instruments for shaping forest resources and forest space in accordance with the principles of permanently sustainable forest management. In the study of conditions and directions of spatial development of the commune, the description of the actual state of the forest space as well as the directions and principles of its shaping should be carried out in a specific standard, in consultation with all units responsible for forest management. Distinguishing Forest Functional Areas may impact the optimization of the costs of forest management and nature protection, because after assigning dominant functions to the distinguished areas, directing financial resources to defined functioning goals will be easier both at the planning stage and during implementation. Verification of the results obtained will also be easier and more transparent. An equally important effect will be to indicate potential conflicts between different expectations from forest management. The characteristics of functional forest areas together with recommendations and suggestions for furnishing works should be provided by Regional Operational Programs, including in their content the assumptions of the region’s spatial development policy, valorization of the forest and assessment of its stability, assumptions for activities related to nature protection and water management, characteristics of climate conditions, optimization of the road network, fire protection, tourist development and forest education, characteristics of the state of forest resources and forecasts of the development of wood resources. An excellent source of information for that purpose is the Forest Data Bank.
Źródło:
Sylwan; 2020, 164, 05; 373-383
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda określania średniego wieku gospodarstwa w przerębowo-zrębowym sposobie zagospodarowania lasu
Method of assessment average age of forest range in shelter wood cutting system
Autorzy:
Banaś, J.
Zięba, S.
Bujoczek, L.
Zygmunt, R.
Drozd, M.
Powiązania:
https://bibliotekanauki.pl/articles/989920.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gospodarstwa lesne
gospodarstwa przerebowo-zrebowe
drzewostany
struktura drzewostanu
struktura wiekowa
klasy wieku
sredni wiek drzewostanu
wiek odnowienia
odnowienia podokapowe
age class structure
average age of stands
regeneration class
upgrowth
Opis:
The study describes a new method of assessing the average age of the forest range with significant share of stands in the regeneration class. In proposed method, average age of stands in regeneration layer is calculated as a mean age of tree layer as well as layer of upgrowth, recruitment and saplings weighed by these layers fraction. Example of calculation of average age was performed for 7 ranges located in Kotlina Kłodzka (SW Poland) with total area of 48 653 ha. Average age of stands calculated by proposed method vary from 62 to 73 years and is lower in comparison to average age calculating according to current regulations from 5 to 14 years. Proposed method of calculation the average age of stands in shelter wood cutting system takes into account composed structure of stands in regeneration period by using age and share of all trees generation in stand.
Źródło:
Sylwan; 2015, 159, 09; 732-739
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kształtowanie się smukłości modrzewia europejskiego (Larix decidua Mill.) w zależności od siedliska, wieku i pozycji biosocjalnej
Effect of forest habitat type, age and biosocial position on the slenderness of European larch (Larix decidua Mill.)
Autorzy:
Kaźmierczak, K.
Nawrot, M.
Pazdrowski, W.
Najgrakowski, T.
Jędraszak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1008902.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
smuklosc drzew
modrzew europejski
Larix decidua
klasy wieku
warunki siedliskowe
pozycja biosocjalna drzew
slenderness
forest habitat types
biosocial position
larch
Opis:
The study presents the results of MANOVA of tree slenderness. The study material comprised 72 larch trees in a dominant stand of different age classes growing in fresh mixed coniferous (BMśw), fresh mixed deciduous (LMśw) and fresh deciduous (Lśw) forest habitats. The slenderness of each larch tree was calculated as the ratio of tree height [m] to breast height diameter [cm]. Basic statistical characteristics were also established. A three−way analysis of variance was performed assessing the statistical significance of the impact of forest habitat type, age and biosocial position of trees in the stand. A similar analysis was done for two basic measurement characteristics of trees – breast height diameter and height.
Źródło:
Sylwan; 2011, 155, 07; 472-481
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:
Ewolucja ekonomicznych podstaw wyznaczania wieku dojrzałości rębnej drzewostanów
Ehvoljucija ehkonomicheskogo bazisa opredelenija vozrasta spelosti nasazhdenija
Evaluation of the economic background of determination of cutting maturity age of forest stands
Autorzy:
Klocek, A.
Powiązania:
https://bibliotekanauki.pl/articles/822941.pdf
Data publikacji:
1977
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1977, 121, 11
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preferencje siedliskowe leśnych ptaków drapieżnych a struktura wiekowa lasów gospodarczych ? na przykładzie Lasów Parczewskich
Habitat preferences of birds of prey vs age structure of forest - Lasy Parczewskie case study
Autorzy:
Keller, M.
Buczek, T.
Różycki, A.L.
Powiązania:
https://bibliotekanauki.pl/articles/1013410.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
fauna
struktura wiekowa
lasy
lesnictwo
Lasy Parczewskie
preferencje siedliskowe
ptaki drapiezne
lasy gospodarcze
birds of prey
habitat selection
age structure of tree−stands
Opis:
The study was conducted in Lasy Parczewskie forest complex in eastern Poland in two periods: 1991−1993 and 2002−2004. We analysed the location of 384 nests belonging to 6 species of diurnal birds of prey that are common in Poland: Honey Buzzard (Pernis apivorus), White−tailed Eagle (Haliaeetus albicilla), Goshawk (Accipiter gentilis), Sparrowhawk (Accipiter nisus), Buzzard (Buteo buteo), and Lesser Spotted Eagle (Aquila pomarina). We found that all species preferred particular age classes of tree stands (Fig. 2). Sparrowhawk chose tree−stands at age of between 30 and 50 years, Honey Buzzard – older than 50 years, Buzzard and Lesser Spotted Eagle – older than 70 years, Goshawk – older than 80 years, and White−tailed Eagle – older than 90 years. Beside the fact that the Parczew Forests are cultivated and harvested in a common manner, they play an important role for all the species concerned.
Źródło:
Sylwan; 2008, 152, 02; 30-35
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zależność grubości ściółki od wieku drzewostanów sosnowych rosnących na glebach porolnych i leśnych
The dependence of forest bed thickness on the age of pine stands growing on post-agricultural and forest soils
Autorzy:
Michalski, A.
Sałek, P.
Płatek, K.
Powiązania:
https://bibliotekanauki.pl/articles/1018331.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
gleby lesne
wiek drzewostanu
gleby porolne
grubosc
lesnictwo
sciolka
pine stand
forest bed
forest soils post−agricultural soils
Opis:
Forest bed layer developing in a tree stand plays a very important part in functioning of forest ecosystem and is of key importance in soil carbon accumulation. In two different study objects (Niedźwiady and Tuczno), 351 forest bed thickness measurements were taken in 117 pine stands of different age classes, separating them into those growing on forest lands (28 tree stands – 84 measurements) and those on post−agricultural ones (89 tree stands – 27 measurements). The above relationships were analysed, what showed a relation between the thickness of forest bed and the age of tree stand. Forest bed thickness increases together with tree stand age, both on forest and post−agricultural soils.
Źródło:
Sylwan; 2006, 150, 08; 20-25
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przestrzeń pojedynczego drzewa w drzewostanie panującym w zależności od wieku oraz typu siedliskowego lasu na przykładzie modrzewia (Larix decidua Mill.)
Single tree space in a dominant stand in relation to age and forest habitat type on the example of larch [Larix decidua Mill.]
Autorzy:
Kaźmierczak, K.
Pazdrowski, W.
Nawrot, M.
Szymański, M.
Powiązania:
https://bibliotekanauki.pl/articles/1009015.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrometria
drzewostany panujace
wiek drzew
klasy Krafta
drzewa lesne
modrzew europejski
Larix decidua
przestrzen wzrostu
przestrzen pojedynczego drzewa
siedliska lesne
siedlisko boru mieszanego swiezego
siedlisko lasu mieszanego swiezego
growth space
crown
age
habitat type
biosocial position
larix decidua
Opis:
The study presents the results of the MANOVA investigation on single tree growth space. The study included 48 larch trees in a dominant stand of different age classes growing in the fresh mixed coniferous (BMśw) and fresh mixed broadleaved (LMśw) forest habitats. The space occupied by a single tree was calculated for each larch tree as the volume of a cylinder with a height equal to the height of a tree, while the base area was determined from the average crown radius. Basic statistical characteristics were established. The MANOVA was performed to assess the statistical significance of the impact of forest habitat type, age and biosocial position of trees in a stand. A similar analysis was done for two basic measurement characteristics of trees – diameter at breast height and height.
Źródło:
Sylwan; 2010, 154, 11; 764-772
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Defoliacja koron drzew sosny zwyczajnej (Pinus sylvestris L.) wybranych klas biosocjalnych niezależnie od strefy uszkodzenia, klasy wieku i typu siedliskowego lasu
Crown defoliation of Scots pine [Pinus sylvestris L.] in selected biosocial classes irrespective of damage zone, age class and forest site type
Autorzy:
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1012893.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
defoliacja
korony drzew
klasy Krafta
sosna zwyczajna
lesnictwo
Pinus sylvestris
drzewa lesne
defoliation
scots pine
biosocial classes
Opis:
The paper presents the results of the investigation of the tree crown defoliation in different Kraft’s classes irrespective of damage zone, age class and forest site type. Biosocial position turned out to be itself a decisive factor influencing the significance of the differences in the mean defoliation of the crowns.
Źródło:
Sylwan; 2008, 152, 04; 13-20
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kolej rębu drzewostanów sosnowych według kryteriów ekonomicznych
Rotation age of pine stands on the basis of economic criteria
Autorzy:
Bednarski, K.
Miscicki, S.
Powiązania:
https://bibliotekanauki.pl/articles/972950.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
pozyskiwanie drewna
drzewostany sosnowe
kryteria ekonomiczne
leśnictwo
gospodarstwa zrębowe
kolej rębu
final cut
forest habitat type
income
maturity
value
Opis:
There is a lack of an acceptable and practical method for calculating the optimal moment at which a forest stand is considered ready for felling. The aim of the research was to: (1) develop a concept for the calculation of the rotation age for forest stands based on economic criteria and (2) develop a methodology for obtaining and processing empirical data necessary for such calculation. It is assumed that stands are felled at the age affecting the age structure (area of age classes) of a forest in such a way that the difference between revenues from the sale of timber harvested in inter−mediate cuts and final cuts and the costs of timber harvest, silvicultural management, forest protection and administration is the largest. The developed method of calculating the rotation age was tested on the example of three Scots pine forests under the clear−cutting system representing typical forest habitats. The collected empirical material consisted of (1) own measurement data used to determine the value of the growing stock, and (2) data from the State Forests Information System used to determine the management costs, timber prices and the volume of timber harvested from intermediate cuts. These data helped to calculate the relationship between the income from a forest (including: revenues from the final and intermediate cuts, costs of forest management as well as timber harvesting and extraction) and the rotation age. The highest net income was when the rotation age was 108−125 years. The more fertile habitat, the shorter was the rotation age. The proposed methodology can be treated as a useful tool for the calculation of rotation age related to forest management in Poland. The dependence of income from a forest on the rotation age can be used to calculate losses that may arise when other than an optimal rotation age is applied.
Źródło:
Sylwan; 2016, 160, 03; 197-206
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekonomiczny wiek rębności drzewostanów sosnowych
Economic rotation age of Scots pine stands
Autorzy:
Piekutin, J.
Skręta, M.
Powiązania:
https://bibliotekanauki.pl/articles/1008788.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gospodarka lesna
drzewostany sosnowe
wiek rebnosci
ekonomiczny wiek rebnosci
economic rotation age
value of forest stand
Opis:
The determination of the best rotation age for trees and forest stands is one of the most decisive problems in forestry. It results from different aims of forest management. There are many criteria of selecting the product of forest utilization and deciding about stand maturity. They can be divided into biological, technical and economical ones. The most common are usually based on the rules of forest management. Different rotation age for the stand, dependent on various factors, always influences economical balance between bore costs and achieved income. Article presents the method of defining the economical rotation age based on the maximization of the income.
Źródło:
Sylwan; 2012, 156, 10; 741-749
0039-7660
Pojawia się w:
Sylwan
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:
On the relations between burial types and a level of development of the society
Autorzy:
Grechko, Denis S.
Powiązania:
https://bibliotekanauki.pl/articles/567516.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
Tematy:
East European Forest-Steppe
Bronze Age
Scythian period
funeral ceremony
human burials
exposure
Opis:
There are main forms of the funeral ceremony of indigenous population of Central and East European Forest-Steppe of the Bronze Age and the Scythian period which have been marked out in the article. The ways of treating the dead were different. The body could be buried in the ground and burial mounds within the territory of settlements (in household buildings and special graves). The bones of dead could be left in the settlement area on exposure. The forest-steppe population followed a tradition of forefathers which was expressed in worship of human remains.
Źródło:
Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego; 2017, 38; 101-109
0137-5725
Pojawia się w:
Materiały i Sprawozdania Rzeszowskiego Ośrodka Archeologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza i ocena wyników gospodarowania w Lasach Państwowych w minionym dwudziestoleciu
Analysis and evaluation of forest management in the State Forests National Forest Holding in the last two decades
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/972780.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Polska
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
gospodarka lesna
gospodarka zrownowazona
pozyskiwanie drewna
wyniki gospodarowania
ocena wynikow
average age
average standing volume
volume increment
final cut
intermediate cut
planned
and executed cut
Opis:
Forest management in the State Forests in the past two decades (1990−2009) focused solely on the aging of forest stands and augmentation of forest resources. This period saw an increase in the average age of forest stands from 54 to 61 years, the average standing volume from 186 to 245 m3/ha, and the share of harvested volume in annual increment volume from 50 to 58%. As a result, the share of stands older than 80 years increased from 21 to 28% while that of plantations and young stands decreased from 14.4 to 11%. This resulted in the deterioration of the health and sanitary condition of forests.
Źródło:
Sylwan; 2012, 156, 07; 542-547
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wieku rębności wg instrukcji urządzania lasu z 1957 r. i projektu nowej instrukcji z 1967 r. dla sosny, jodły, dębu i buka w wybranych nadleśnictwach ozlp Radom, Lublin i Przemyśl
Analysis of cutting age according to forest survey instruction from 1957 and the draft of a new instruction from 1967 for pine, fir, oak, and beech in selected forest-districts of the provincial boards of state forests at Radom, Lublin and Przemyśl
Autorzy:
Gierlinski, T.
Powiązania:
https://bibliotekanauki.pl/articles/814797.pdf
Data publikacji:
1968
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1968, 112, 10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybiórczość siedlisk leśnych przez głuszce (Tetrao urogallus) w polskiej części Karpat Zachodnich
Selection of forest habitats by Capercaillie (Tetrao urogallus) in Polish part of the Western Carpathians
Autorzy:
Ligocki, D.
Merta, D.
Bobek, B.
Powiązania:
https://bibliotekanauki.pl/articles/989511.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lowiectwo
ptaki lowne
gatunki chronione
gluszec
Tetrao urogallus
preferencje siedliskowe
siedliska lesne
Nadlesnictwo Ujsoly
Beskid Zywiecki
capercaillie
stand age
altitude
canopy closure
habitat selection
carpathians
Opis:
The objective of this paper is to analyse the forest habitat selection by Capercaillie in Polish part of the Western Carpathians. The study was carried out in the Ujsoły Forest District located in the Beskid Żywiecki Mountains in years 2002−2004. Habitats were investigated with regard to the forest types, age classes of the main tree species, canopy closure and altitude. We established 28 linear transects of the total length of 221 km. Data regarding Capercaillie occurrence (n=141) i.e., bird observations, tracks, feathers and droppings were collected twice during spring, summer, autumn and winter. Average index of Capercaillie density based only on birds seen amounted to 0.055/km of the transect and was the highest during spring (0,090/km). Availability and usage by Capercaillie, as well as preference index were calculated for distinguished habitat groups. As shown by Bailey's test, mountain mixed coniferous forest and mountain coniferous forest sites were preferred by Caperacillie, while mountain deciduous forest was avoided. The birds preferred spruce and beech stands of age ranging from 80 to 120 years. Moreover, stands with open and broken canopy and habitats located 800−1200 m a.s.l. turned to be highly preferred by Capercaillie. The obtained results were analyzed in relation to potential food resources, predator pressure and human disturbance. The following forest management measures in mountain refuges of Capercaillie were suggested: (1) maintaining open or broken canopy closure of stands, (2) policyclic timber harvesting system with a long period of regeneration, (3) patchy distribution of understory vegetation with cover below 50% of area, (4) maintaining in the ground flora at least 30% cover of bilberry, and (5) leaving seed trees and old−growth forest patches in clear−cuts as well as promotion of natural regeneration. This activities together with control of predation and reduction of human pressure allows to protect Capercaillie population in the Beskid Żywiecki Mountains.
Źródło:
Sylwan; 2016, 160, 07; 582-590
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiek rębności w lesie normalnym oraz lesie celowym
Rotation age in normal and target forests
Autorzy:
Klocek, A.
Piekutin, J.
Powiązania:
https://bibliotekanauki.pl/articles/973332.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
model lasu celowego
model lasu normalnego
drzewostany
proces ubywania
proces przezywania
leśnictwo
wiek rębności
deterministic model of normal forest
probabilistic model of target forest
survival and mortality processes
Opis:
The paper focuses on the deterministic model of normal forest, the probabilistic model of target forest and the processes related to the survival and mortality of forest stands suitable for these models. They are the basis for the assumptions, presented in this paper, of two different methods of regulating rotation age adequate for normal forest and target forest. Optimizing the rotation age of a stand is essential for the regulation of forest production. It aims to establish such an age−dependent state of stand, which is the most desirable from the point of view of the adopted forest management objectives. Because of the long−term cycle of stand development, optimizing the age at which a stand is considered mature for felling usually means maximizing the average annual increase in stand volume. Under the conditions of normal forest, the concept formulated in the first half of the nineteenth century, the above optimization criterion has the form of the equation [2]. The current annual increase of timber production (Pb (tu)) at the optimal rotationage (tu) is equal to the average annual increment (Pp(tu)). At this age, the intensity (rate) of thecurrent growth of the production function (Pb(tu)/P(tu)) becomes equal to the fractionof the stand area (1/tu). These relationships are illustrated in figure 3. The model of target forest is derived from the random nature of two opposing processes described as 'survival' and 'mortality' of forests. This is reflected in the transition probability matrix where a forest stand moves from the younger age class to the older or to the youngest age class. The probability function (U(t)) of stand survival in individual management periods (t) developed on the basis of these data, is one of the main parameters of the optimization equation for the rotation age of target forest [11]. Formula [13] indicates that the optimal rotation age (t=tu) is when the rate of growth in the volume of merchantable timber (Pb(t)/P(t)) and the negative growth rate (decline) for a part or the entirestand (Ub(t)/U(t)) are equal to a fraction of the stand area. These interactions are illustrated infigure 8, which additionally presents the effect of the decline in the survival rate on the optimal rotation age (tu). This age may be analyzed separately for natural disasters and for clear−cuttingof stands in accordance with the forest management plan. These two categories of effects mayalso be dealt with jointly.
Źródło:
Sylwan; 2015, 159, 12; 971-988
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Description and characteristic of bird species inhabiting dry coniferous forests exceeding 150 years of age in Kampinos National Park
Autorzy:
Pepłowska-Marczak, Danuta
Powiązania:
https://bibliotekanauki.pl/articles/1157315.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Kampinos National Park
forest birds
hole-nesters
mature forest
mature forest specialists
old forest
umbrella species
Opis:
This paper presents the results of the ornithological research performed in the oldest dry coniferous forests of Kampinos National Park (central Poland). The field study took place on three 25-ha-sites overgrown with Scots pine Pinus sylvestris over 150 years old. The species composition of the dominant group was found to differ from that of other forests. Hole-nesters constituted the most important part of the population of birds together with old and mature forest specialists and residents. Hole-nesters were numerously represented (50% of all noted pairs). Old and mature forest specialists constituted 40% of all pairs. Seven species connected to natural forest clearings were also found to be of significant importance. The presence of such ecological groups is proof of the biological balance and diversity of the researched forests.
Źródło:
World Scientific News; 2018, 92, 2; 155-170
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The formation and structure of clones of forest herbs in ecosystem of north-eastern Ukraine
Autorzy:
Kovalenko, I. M.
Powiązania:
https://bibliotekanauki.pl/articles/100506.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
forest herbs
population
clone
partial bush
age state
zioło leśne
populacja
kopia
Opis:
The clonal structure of forest herbs of north-eastern Ukraine, such as Aegopodium podagraria L., Asarum europaeum L., Carex pilosa Scop., Stellaria holostea L., has been examined using the total mapping method. The regularities of changes within the radii of clones, density of partial bushes and their age have been found out. The author has suggested an original statistical and graphical method which allows to estimate age state of each clone and make its land zoning.
Źródło:
Geomatics, Landmanagement and Landscape; 2016, 2; 61-76
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The state of bioelements in the hair of free-ranging European bisons from Białowieża Primeval Forest
Autorzy:
Kosla, T.
Skibniewska, E.
Skibniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/30717.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Bialowieza Forest
Polska
European bison
bioelement content
bison
hair
animal age
age
gender
animal hair
animal organism
hair sample
phosphorus content
magnesium content
titanium content
vanadium content
Opis:
Human or animal hair is considered to be a good indicator of the content of bioelements or toxic elements in human and animal organism. Its analysis is a good alternative for the arduous obtaining blood or biopsy samples. The aim of the performed research was the assessment of some chosen bioelements in the organism of European bison on the basis of their analysis in hair. The investigation material comprised hair samples obtained from 22 animals. All animals were divided into groups according to gender (males, females) and age (calves up to one year of age and animals older than 2 years). Samples were mineralized in nitric acid, under pressure in the microwave apparatus. The content of phosphorus, sulphur, magnesium, iron, titanium and vanadium were determined in hair samples. The content of these elements was determined using the ICP-AES method in accredited laboratory. The accuracy of determinations was tested using the standard reference material. The mean content of phosphorus in hair amounted to 245.14 mg · kg–1, SD 65.00, magnesium 97.32 mg · kg–1, SD 33.16, iron 119.48 mg · kg–1, SD 83.31 and titanium 2.368 mg · kg–1, SD 2.097. In case of these elements, differences depending on gender and age were statistically insignificant. Mean content of sulphur in the European bison hair amounted to 3.41% with equalized content in the herd (SD 0.22%). Here also statistically insignificant differences depending on gender were observed. However, a statistically significant difference (p ≤ 0,05) was demonstrated which depended on animal age. Mature European bisons had more sulphur in hair as compared to calves. The concentration of vanadium (0.362 mg · kg–1, SD 0.396 on the average) significantly differed in hair depending on the European bison age with much higher values in adult animals (calves 0.260 mg · kg–1, animals older than 2 years 0.686 mg · kg–1). Similar data were obtained while investigating hair of sea mammals.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
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:
Optymalizacja wieku przebudowy drzewostanów negatuwnych na przykładzie Nadleśnictwa Żednia
Optimization of the transformation age of negative stands exemplified by the forest district Żednia
Autorzy:
Klocek, A.
Lubanski, A.
Powiązania:
https://bibliotekanauki.pl/articles/824910.pdf
Data publikacji:
1985
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1985, 129, 07
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grodziska strefy lasostepu pontyjskiego we wczesnej epoce żelaza. Wstęp do dyskusji
AN INTRODUCTION TO THE STRONGHOLDS OF THE PONTIC FOREST STEPPE ZONE IN THE EARLY IRON AGE
Autorzy:
Ignaczak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/941816.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
The problem of the „giants’ strongholds” (of sizes often over 50 ha) situated in the early Iron Age in the Ukrainian forest steppe zone is the wealthy Russian and Ukrainian literature. Hitherto, many concepts explaining this phenomenon pursuant to politics (as a response to military threat) as well as to the economy (as a result of social organisation of local tribes) have been suggested. The main source of this discussion comes from the activities of a Polish-Ukrainian research expedition, – „Fortresses of Podolia”. It aims were to recognize and describe the history of strongholds forming the western Podolian settlement concentrating within the Ukrainian forest steppe. This programme is a derivate of the cooperation between the Institute of Archaeology of the Academy of Sciences of Ukraine and the Institute of Prehistory of the Adam Mickiewicz University in Poznañ2. Within the programme, researches of a Severinovka stronghold (Winnica district) were conducted in seasons 2009–2011 as a prologue of the project, as well as surface prospections in the area of western Podolia – mainly in the Winnica district. When interpreting the research results one has to examine the problems of strongholds of the „Scythian period”. In this article, which is an introduction to the discussion, the author would like to outline which processes may have led to fortifying the defensive settlements.
Źródło:
Acta Universitatis Lodziensis. Folia Archaeologica; 2011, 28
0208-6034
2449-8300
Pojawia się w:
Acta Universitatis Lodziensis. Folia Archaeologica
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:
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:
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:
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:
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:
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:
Monitoring cetyńców (Tomicus sp.) w różnych typach siedliskowych lasu
Monitoring of pine−shoot beetles (Tomicus sp.) in different forest habitat types
Autorzy:
Lesniak, A.
Powiązania:
https://bibliotekanauki.pl/articles/973063.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Tomicus piniperda
bonitacja siedliska
cetyniec mniejszy
lesnictwo
drzewostany sosnowe
klasy wieku
owady
Tomicus minor
monitoring
typy siedliskowe lasu
szkodniki roślin
entomologia leśna
cytniec większy
pine−shoot beetle (tomicus sp.)
forest habitat type
age class
bonitet class
Opis:
The paper synthesises results from the study on pine−shoot beetles occurring in 10 types of forest habitat in seven forest districts of central Poland. The paper provides assessment of three methods for collecting insect−induced needle drop, as well as its quantities in age and bonitet classes in pure and mixed pine stands.
Źródło:
Sylwan; 2003, 147, 11; 61-67
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement and evaluation of timber yields and corresponding non-timber forest products of selected tree species. An exploratory study on poplar, Acacia, Ulmus and Juglans tree species in Kyrgyzstan
Autorzy:
Agbenowu, Y.I.S.
Attah, R.
Powiązania:
https://bibliotekanauki.pl/articles/2049706.pdf
Data publikacji:
2018
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
forest zone
Kirgizstan
timber yield
wood measurement
evaluation
poplar
Acacia
Ulmus
Juglans
biomass
volume
net present value
growth yield
rotation age
Opis:
With issues of high timber demand and illegal logging in the forest zones of Kyrgyzstan, agroforestry may serve as a viable option for rectification. Yields of timber and expected income from the most popular tree species are in most cases lacking. The goal of this study is to evaluate the timber yields and non-timber forest product from Ulmus, Poplar, Acacia and Juglans tree species in Kyrgyzstan. More focus was allocated to Poplar as this is one of the most common and preferred tree species in Kyrgyzstan. A sample size of 420 trees was recorded from 18 stands with 20 trees measured in each stand with the exception of Juglans which were 6 stands with 9-17 trees each The study estimated (i) tree volume using allometric parameters (ii) age-biomass relationship (iii) Factual Branch Analysis model to estimate the above ground biomass of the different tree segments (iii) revenue deduction and NPV of Poplar trees and (iv) biological rotation Age to determine the suitable age for Poplar harvesting. The findings show that NPV is highest at 10 years for Poplar when it is being considered for fast-growing timber. The biological rotation age was, however, higher at around 17 years. Site-specific age-biomass model appears to be suitable for estimating tree biomass since the tree allometry was found to differ significantly between studied stands even with similar age ranges. The developed relationship and tree database can adequately be applied to estimate tree volume and biomass in similar site conditions in the studied region.
Źródło:
Environment, Earth and Ecology; 2018, 2, 1; 12-27
2543-9774
2451-4225
Pojawia się w:
Environment, Earth and Ecology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena metod i zasad gospodarowania w Lasach Państwowych w minionym dwudziestoleciu
Evaluation of the methods and principles of forest management in the State Forests in the past two decades
Autorzy:
Poznański, R.
Powiązania:
https://bibliotekanauki.pl/articles/991592.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
gospodarka lesna
gospodarka zrownowazona
lasy gospodarcze
lasy ochronne
uzytkowanie rebne
uzytkowanie przedrebne
wiek rebnosci
regulacja uzytkowania rebnego
rotation age
allowable cut
cut determination by silvicultural needs
forest management planning
location of cutting sites
ecological forest management
Opis:
The adopted rotation age and prescribed cut are found not to be fully respected at any stage of regulation, planning and implementation of cutting plans. As a result, timber, the main crop in forestry, is not uniform in terms of rotation age and fails the adopted criteria of crop maturity. Protective forests are not subject to management unless cut determination derives from silvicultural needs, without specifying the criteria for these needs. The level of cuts subjectively determined by quality control inspectors is not respected in forest management practice and should be recommended for use in the forests administered by the State Forests.
Źródło:
Sylwan; 2013, 157, 04; 298-305
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O metodzie dokładnego określania wieku podrostów i rocznych przyrostów wysokości u niektórych gatunków drzew leśnych
About the method to determine accurately the age of saplings and the annual height growth of sime forest tree species
Autorzy:
Chojnacki, W.
Powiązania:
https://bibliotekanauki.pl/articles/824367.pdf
Data publikacji:
1964
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1964, 108, 01
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:
Dendrochronological studies of Juniperus communis dying out population in the "Jalowce" reserve (Pomerania)
Autorzy:
Cedro, A
Wrobel, M.
Jurzyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/41065.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
dendrochronology
juniper
Juniperus communis
population
meteorological condition
tree ring width
Jalowce reserve
Pomeranian region
Polska
forest nature reserve
plant age
tree
Opis:
The aim of undertaken research was recognition the reasons of dying out the common juniper Juniperus communis L. ssp. communis population in the forest nature reserve “Jałowce” (Pomerania). Applied methods of dendrochronological analysis let to determine the age of juniper-stand in the reserve and describe the influence of climatic conditions on its growth. Obtained results testify to Juniperus communis chronology with signature WIE collected from 17 individual sequences which numbered 102 tree ring width and represented a time span 1903 to 2004. Such results described the juniper-stand in the reserve as ageing population with the oldest specimen at age 98 years. However, the last several years were characterised by the lack of strong growth depressions typical for earlier time periods with tree ring width ranged 0.7–1.0 mm (themean annual tree ring width amounted to 0.85 mm), but the visible symptoms of degeneration and dying out of protected common juniper population intensified probably because of its age.
Źródło:
Dendrobiology; 2007, 58; 17-23
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie metody litologicznej do weryfikacji rezultatów nieinwazyjnych badań kurhanów z epoki brązu na pograniczu śląsko-wielkopolskim (Las Krotoszyn, Wielkopolska)
Use of the lithological method in verifying results of non-invasive surveys of the Bronze Age barrow mounds on the Silesia and Wielkopolska borderland (Krotoszyn Forest, Wielkopolska)
Autorzy:
Hildebrandt-Radke, Iwona
Mateusz, Stróżyk
Czebreszuk, Janusz
Jaeger, Mateusz
Pospieszny, Łukasz
Cwaliński, Mateusz
Niebieszczański, Jakub
Rotnicka, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/578286.pdf
Data publikacji:
2018
Wydawca:
Łódzkie Towarzystwo Naukowe
Tematy:
kurhany
lotniczy skaning laserowy (ALS)
prospekcja magnetometryczna
metoda litologiczna
epoka brązu
Las Krotoszyn
barrow mounds
Airborne Laser Scanning (ALS)
magnetometry prospection
lithological methods
Bronze Age
Krotoszyn Forest
Opis:
Upowszechnienie się w archeologii metod nieinwazyjnych umożliwiło w znacznie większej skali badania obszarów leśnych. W badaniach cmentarzysk kurhanowych położonych na Wale Krotoszyńskim (Las Krotoszyn), w celu rozpoznania morfometrycznego cmentarzyska kurhanowego i identyfikacji kopców, które weryfikowano dodatkowo w terenie, zastosowano metody lotniczego skaningu laserowego do wykonania numerycznego modelu terenu. Wykonanie prospekcji magnetometrycznej, na podstawie oceny zróżnicowania anomalii magnetycznych, dało możliwość uchwycenia złożonej struktury wewnętrznej badanych kurhanów. Wyniki magnetometrii weryfikowane były poprzez odwierty geologiczne w miejscach występowania anomalii magnetycznych w obrębie kurhanu, a pobrany z nich materiał poddano badaniom litologicznym oraz analizie podatności magnetycznej.
The spread of non-invasive methods in archaeology made it possible to study forest areas. In the study of barrow cemeteries located on the Krotoszyn Ridge (Krotoszyn Forest), aerial laser scanning methods were used to implement a numerical terrain model for morphometric recognition and identification of burial mounds, which were additionally verified in the field. Magnetometric prospection made it possible to study the complex internal structure of the studied mounds on the basis of the diversity of magnetic anomalies. The verification of the geomagnetic surveys was based on geological drillings in the places with the largest magnetic anomalies within the burial mounds; the material collected from them was subjected to lithological tests and analysis of magnetic susceptibility.
Źródło:
Acta Geographica Lodziensia; 2018, 107; 73-92
0065-1249
Pojawia się w:
Acta Geographica Lodziensia
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:
Przyrost bieżący i przeciętny drzewostanów w lasach państwowych i jego wpływ na określanie wielkości etatów użytków rębnych i przedrębnych
Current and average increment of stands in state forest and its influence upon the determination of the extend of cutting age earlier uses
Autorzy:
Gierlinski, T.
Powiązania:
https://bibliotekanauki.pl/articles/822316.pdf
Data publikacji:
1970
Wydawca:
Polskie Towarzystwo Leśne
Źródło:
Sylwan; 1970, 114, 12
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alienacja ekologiczna dzieci w wieku wczesnoszkolnym – refleksje nad pokoleniem pasażerów
Environmental Alienation of Children in the Early School Age – Reflections on the Passenger Generation
Autorzy:
Brudzińska, Patrycja
Powiązania:
https://bibliotekanauki.pl/articles/1810741.pdf
Data publikacji:
2021-04-21
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
alienacja ekologiczna
naturalne place zabaw
przedszkola leśne
deficyt natury
pedagogia źródeł
ecological alienation
natural playgrounds
forest kindergartens
nature deficit
Opis:
Prezentowany artykuł omawia problem jakości relacji współczesnych dzieci ze środowiskiem naturalnym. W tekście zamieszczono wyniki polskich i zagranicznych badań ukazujących poziom dziecięcej wiedzy przyrodniczej oraz wzrastającą tendencję do ograniczania czasu spędzanego w środowisku naturalnym. Poruszono także kwestię odpowiedzi na tę sytuację – dostrzeżenie potrzeby wyznaczania nowych miejsc do zabawy dziecięcej, umożliwienia prowadzenia obserwacji przyrody.
The presented paper discusses the problem of the quality of contemporary children – natural environment relationship. The text includes results from Polish and foreign studies demonstrating the level of children’s environmental knowledge and increasing tendency to limit the time spent in the natural environment. It also covers the issue of response to this situation, the recognition of the need for designation of new places for children to play as well as enabling nature observation.
Źródło:
Roczniki Pedagogiczne; 2021, 13, 1; 81-93
2080-850X
Pojawia się w:
Roczniki Pedagogiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wskaźnik uszkodzenia koron sosny (Pinus sylvestris L.) III i IV klasy wieku a ustalanie stref uszkodzenia lasu
Damage index of Pine (Pinus sylvestris L.) crowns of the 3rd and 4th age classes and the determination of forest damage zones
Autorzy:
Jaszczak, R.
Powiązania:
https://bibliotekanauki.pl/articles/1022788.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
drzewostany sosnowe
uszkodzenia korony
klasy wieku
strefy uszkodzen lasu
wskaznik uszkodzenia korony
sosna zwyczajna
monitoring
lesnictwo
Pinus sylvestris
drzewa lesne
scots pine
damage index
damage zone
age class
Opis:
In years 2002 and 2003, pairs of test plots were established in pine stands of the 3rd and 4th age classes of selected forest divisions. The crown condition of 25 trees from the main stand was assessed on each plot employing the so called stand method. Damage indices were calculated for each test plot, which were used to assign individual stands to the appropriate damage zone. The presence or lack of statistically significant differences of damage indices was checked and this was referred to the membership of individual stand pairs in damage zones. The proportions of damage zones determined according to two divisions for the 3rd, 4th and, jointly, for the 3rd and 4th age classes in both years of observations were compared.
Źródło:
Sylwan; 2005, 149, 11; 25-36
0039-7660
Pojawia się w:
Sylwan
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

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