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Wyszukujesz frazę "primeval forest" wg kryterium: Temat


Tytuł:
Mszaki epifityczne świerka pospolitego w wybranych zespołach leśnych Białowieskiego Parku Narodowego
Epiphytic bryophytes of Norway spruce in selected forest communities of Białowieza National Park, NE Poland
Autorzy:
Zin, E.
Obidziński, A.
Powiązania:
https://bibliotekanauki.pl/articles/973716.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zespol Calamagostrio arundinaceae-Piceetum
podzespol Tilio-Carpinetum typicum
zespol Circaeo-Alnetum
zespol Carici elongatae-Alnetum
Picea abies
epifity
mszaki
bogactwo gatunkowe
leśnictwo
drzewa leśne
Białowieski Park Narodowy
zbiorowiska leśne
świerk pospolity
występowanie
bryophytes
epiphytism
Białowieża primeval forest
Opis:
The epiphytic bryoflora of Norway spruce in four forest communities of Białowieża National Park consists of 27 species, including 5 liverworts. The first factor differentiating the distribution of the bryophytes is the surrounding forest community and the other − the tree section. Composition of facultative epiphytes on the tree trunk basis reflects the influence of forest association on epiphytic bryoflora on spruce, with the acidity of habitat being the main differentiating factor.
Źródło:
Sylwan; 2011, 155, 11; 769-777
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Budowa, struktura i dynamika górnoreglowych borów świerkowych o charakterze pierwotnym w dolinach Pańszczycy i Stawów Gąsienicowych (Tatrzański Park Narodowy) w okresie kontrolnym 1991 - 2002
The structure, composition and dynamics of subalpine primeval spruce forests in the Panszczyca Valley and the Stawy Gasienicowe Valley [in the Tatra National Park] during the control period 1991-2002
Autorzy:
Karczmarski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1016108.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
dynamika drzewostanu
sklad gatunkowy
Tatrzanski Park Narodowy
drzewostany swierkowe
Dolina Panszczycy
lesnictwo
proces dorastania
struktura drzewostanu
zasobnosc drzewostanu
budowa drzewostanu
Dolina Gasienicowa
regiel gorny
proces ubywania
przyrost drzewostanu
stand structure
stand dynamics
natural development cycle
primeval forest
spruce
subalpine zone
poland
Opis:
The research presents changes (in the period of 1991−2002) in species composition, volume, dbh structure, height and storey structure, increment value, self−thinning rate and regeneration dynamics of the primeval−type spruce forests of the upper montane zone in the Pańszczyca Valley and the Stawy Gąsiennicowe Valley in the Tatra National Park on the example of three permanent experimental plots. The stands under study (as compared with other stands in the Polish Carpathians from the similar altitudinal zone, feature high productivity expressed by the current annual volume increment value of 4.1−4.5 cu.m./ha, diverse structure and composition depending on the represented stages and phases of stand development, as well as high stand stability.
Źródło:
Sylwan; 2007, 151, 11; 41-59
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Żubrze eksponaty z lat 1811-1914 w europejskich kolekcjach naukowych - mało znany aspekt XIX-wiecznej gospodarki łowieckiej w Puszczy Białowieskiej
European bison specimens from 1811-1914 in European science collections - little known aspect of the 19th century game management in Białowieża Primeval Forest
Autorzy:
Samojlik, T.
Daszkiewicz, P.
Fedotova, A.
Powiązania:
https://bibliotekanauki.pl/articles/987196.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lowiectwo
historia
wiek XIX
Puszcza Bialowieska
gospodarka lowiecka
zubr
Bison bonasus
pozyskanie zwierzat
pozyskanie dla celow naukowych
pozyskanie dla celow muzealnych
pozyskanie lowieckie
pozwolenia na polowania
zbiory zoologiczne
zbiory muzealne
lata 1811-1914
european bison conservation
natural science history
białowieża primeval forest
game management
Opis:
The 19th century game management in Białowieża Primeval Forest (BPF), especially hunts for European bison, have been a subject of several works. The aspect of hunts motivated by research and museum needs have not been described in detail yet. The paper attempts at describing the administrative process behind such hunts and collecting all records of bison hunted or captured and carcasses acquired in BPF for museums, natural collections and universities in 1811−1914 (period covered by manuscript sources and published historical works with data on bison hunts available). Based on available sources, we calculated that in the period in question a total of 153 bison were hunted during ‘recreational' hunts (by tsars, their families and exalted guests with special tsars' permissions) and 56 were shot for purposes of study and research – therefore 27% out of 209 hunts had research motivations. Furthermore, 72 bison were captured alive (for zoos, cross−breeding and taming experiments) and carcasses of 89 bison (plus another 9 of unknown origin) were sent to museums and universities all around Europe. We believe that this little known aspect of the 19th century game management in BPF has had a significant impact on informing the scientific world and especially the general public about the European bison species, which in turn could have contributed to successful, international collaboration after the extinction of the species in the wild in 1919.
Źródło:
Sylwan; 2017, 161, 04; 341-352
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regeneracja grądu Tilio-Carpinetum Tracz. 1962 w następstwie dawnego użytkowania lasu w Białowieskim Parku Narodowym
Regeneration of Tilio-Carpinetum hornbeam forest [Tracz. 1962] as a follow-up of forest utilisation in the Bialowieza National Park
Autorzy:
Keczyński, A.
Powiązania:
https://bibliotekanauki.pl/articles/1016313.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
regeneracja
zbiorowiska lesne
zbiorowisko Tilio-Carpinetum
lesnictwo
grady
regeneration
hornbeam forest
tilio−carpinetum
forest utilisation
strict protection
białowieża primeval
forest
białowieża national park
Opis:
The article presents a hypothetical history of a stand and the occurring changes resulting from the on−going regeneration processes in the Tilio−Carpinetum hornbeam community following the past forms of forest utilisation. The anthropogenic destruction of stands took place most probably at the end of the 18th century. The regeneration process started at the beginning of the 19th century had led to the appearance of a spruce stand which disappeared in the middle of the 20th century. A lime−spruce−hornbeam stand was formed in its place. Since over 70 years, the regeneration process has been continuing under strict protection regime.
Źródło:
Sylwan; 2007, 151, 01; 58-65
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of Sentinel-2 Data for Automatic Forest Cover Changes Assessment – Białowieża Primeval Forest Case Study
Autorzy:
Pelc-Mieczkowska, Renata
Powiązania:
https://bibliotekanauki.pl/articles/2051560.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
Białowieża Primeval
forest cover
remote sensing
radiometric indices
Sentinel-2
Puszcza Białowieska
lesistość
teledetekcja
wskaźniki radiometryczne
Opis:
Sentinel-2 mission, as a part of European Space Agency Earth Observation Program Copernicus, designed specifically for Earth surface observations provides images in 13 bands. That imaging is used to analyse many subject areas as Land monitoring, Emergency management, Security and Climate change. In the presented paper the application of Sentinel-2 data for automatic forest cover changes detection has been analysed. As input data, B02, B03, B04 and B08 bands have been used to compute Normalized Difference Vegetation Index (NDVI) and Enhanced Normalized Difference Vegetation Index (ENDVI). To track changes in the forest cover over the years, for each pixel the difference in the value of vegetation indices between consecutive years have been calculated. Then the threshold was set at the level of 0.15. The values of differences above the threshold mean a significant decrease in the quality of vegetation and may be considered areas of deforestation.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 4; 148-166
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przestrzenna zmienność struktury drzewostanu w wybranych lasach o charakterze pierwotnym w Karpatach Zachodnich i Górach Dynarskich
Spatial variation in stand structure of selected old-growth forests in the Western Carpathians and the Dinaric Mountains
Autorzy:
Paluch, J.
Bartkowicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/979198.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy o charakterze pierwotnym
struktura drzewostanu
analiza porownawcza
Karpaty Zachodnie
rezerwat Oszast
rezerwat Perucica
Gory Dynarskie
leśnictwo
lasy góskie
pierśnicowe pole przekroju
zmienność przestrzenna
Beskid Żywiecki
rezerwat Żarnówka
old−growth forests
primeval forests
natural forest dynamics
structural heterogeneity
patch−mosaic
developmental stages
continuous cover forestry
Opis:
The research was conducted in three old−growth forests consisted of silver fir Abies alba Mill., European beech Fagus sylvatica L., and Norway spruce Picea abies Karst. located in the southern part of Poland (Żarnówka and Oszast) and the south−eastern Bosnia and Hercegovina (Perućica). The aim of the study was to compare basic stand characteristics and spatial heterogeneity in terms of variation in stand basal area and vertical structure. In each research area, small sample plots (0.015 ha) were localised in a regular 20×20 m grid covering approximately 10 ha. In each sample plot the diameter at breast height (d1.37 cm) and species of all live trees were recorded. For each plot the basal area of live trees and an index of structural diversification were determined. As a measure of structural diversification, the simple variance in tree height was computed and scaled through comparison with a hypothetical variance of the uniform distribution. The spatial patterns of basal area and structural diversification were tested with paired−plot approach. In addition, simulation techniques were used to model variation in the basal area of live trees dependent on spatial scale. The Carpathian and Dinaric stands considerably differed in basal area (ranging from 36.1 to 65.2 m2/ha) and volume (varying from 522 to 1176 m3/ha), but all of them had diameter distributions proximate to a negative exponential model. The basal area recorded on the 0.015 ha plots had a very similar pattern of variation, which could be generalised as a truncated normal distribution. The distribution of the structural diversification index was different and resembled an uniform (Perućica) or a bimodal distribution with modal values at its extremes (Oszast and Żarnówka). However, in the spatial scales above 1,000 m2 the index distri− bution become similar to a normal (Oszast) or a truncated normal (Perućica and Żarnówka) ones with high mean values, indicating the predominance of complex vertical structures. In general, the spatial variability in basal area and structural diversification of live trees tended to be random. These results suggest that the patch−mosaic assumption being fundamental for the developmental cycle hypothesis is inapplicable to the studied primeval forests. Regardless of differences in geographic location and site conditions, the studied stands show a similar spatial pattern of structural heterogeneity, suggesting a close resemblance of disturbance regimes driving its dynamics.
Źródło:
Sylwan; 2020, 164, 02; 91-101
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł

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