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The study objectives were to identify external sources of financing the nature and forest education and to analyze the level of their use in regional directorates of the State Forests (RDSF) in the years 2006−2016. In addition, we studied the relationship between the amount of external and internal financing. As a data source, we used reports on educational activities of the State Forests for the...
One of the tree species appearing after a decline of Norway spruce Picea abies (L.) H. Karst. in the Silesian Beskid Mountains is Silver Birch Betula pendula Roth. Therefore our study was aimed at evaluating this birch regeneration and the dynamics of changes resulting from experimental cutting. Measurements and inventories of trees were conducted on research plots located in a ten-year old birch...
The review focuses on use of airborne hyperspectral imagery in forest species classification. Studies mentioned in the review concern hyperspectral image classification with use of various methods. Only research, where study area is located in Europe or North America were selected. Articles were reviewed with respect to used pre−processing methods, methods of feature selection or feature extraction,...
The study embraced 159 nest boxes placed in three different study plots in the Wielkopolski National Park in western Poland. In the first season, 64% of nest boxes were occupied by four species: great tit Parus major, blue tit Cyanistes caeruleus, Eurasian nuthatch Sitta europaea and European pied flycatcher Ficedula hypoleuca. The dominant species were great and blue tits. Over 80% of broods of great...
The aim of this study was to identify the motives of visits in the Wigierski National Park (north−eastern Poland), which were focused on health and regeneration of vitality by inhabitants of Suwałki. Knowledge about the influence of forest environment on health was also investigated. The quota sampling was used to determine the sample size and number of respondents was determined proportionally to...
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