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The long−term changes of vegetation cover at the level of woodland community taking place between 1959 and 2016 on the permanent study plot located in the compartment 319 of Białowieża National Park are discussed. In 1959 two distinctive woodland community types occurring on sample plot were distinguished: subboreal mixed pine−oak forest (Serratulo−Pinetum) and hornbeam−lime forest (Tilio−Carpinetum)...
The visual estimates of tree canopy cover belong to the fundamental measurements of analytical features of forest phytocoenoses. However, it is the subjective method, which results in error difficult to control. The objective of the research was to present a canopyscope and to compare results of canopy cover estimation using it with visual estimates. We conducted several experiments in oak−hornbeam,...
Cladonio−Pinetum Juraszek 1927 forest is protected in Europe as the Natura 2000 habitat. Nowadays its naturalness is often considered to be doubtful. In spite of the many research, the knowledge about ecology and dynamics of this community is still insufficient. The aim of the research is to define the stability of the community within ‘Bory Tucholskie' National Park. The site is located in the area...
Ramienice (Characeae), jako gatunki wrażliwe na zmiany środowiska wodnego, mogą być bardzo dobrymi wskaźnikami jego stanu, zwłaszcza gdy tworzą podwodne zbiorowiska, zwane łąkami ramienicowymi. Wykazują, ponadto, znaczący wpływ na jakość wód. W artykule przeanalizowano cechy wód 15 jezior Ziemi Lubuskiej, w których stwierdzono obecność fitocenoz zespołu krynicznicy tępej Nitellopsis obtusa (Desvaux)...
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