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Modern multifunctional forest management needs indicators showing the state of forest environment. Commonly used solution is monitoring of the abundance of species with specific environmental requirements. This paper analyses the possibility of use of the biggest European woodpecker (Dryocopus martius) as forest management quality indicator. The black woodpecker resides in all types of forest sites...
Estimation of population abundance is one of the most difficult tasks in wildlife management. In case of forest−dwelling ungulates, none of the currently available survey methods is satisfying in terms of accuracy, precision, and cost−effectiveness. Therefore, we propose a new method of ungulate monitoring based on distance sampling and using unmanned aerial vehicles equipped with thermal infrared...
The aim of the study was to investigate how industrial pollutants and change of thermal conditions of winter season in the second half of the 20th century affected the basal area increment (BAI) and the climatic signal in the BAI chronologies of Pinus sylvestris and Pinus banksiana. Samples were collected from 21 trees of both species growing in the Chrzanów Forest District (50°20‵ N, 19°47‵ E) which...
The aim of the study was to determine the spatial variation of vapour pressure (e), relative humidity (f) and vapour pressure deficit (Δ) on the clear−cut and gap as well as to compare the spatial distribution of air humidity conditions on both areas. The research was carried out in Rogów Forest Experimental Station (51.827023°N, 19.922315°E) on a clear−cut with a width of 60 m and on a gap of an...
Mistletoe (Viscum album L.) is a semi−parasitic plant and, as long as it is not present in large quantities, it does not pose a lethal threat to trees. Due to its ability to carry out photosynthesis, its effect on the host is negligible. However, recent droughts have made heavy impact on forests and mistletoe in recent years began to appear on a larger scale in regions and in places where it has never...
Formulation of new forest policy and its implementation requires the use of past experiences and the enactment of many changes. Modification to the provisions of the 1997 National Forest Policy is necessary, introducing additions and corrections resulting from climate, economic and environmental changes, social expectations and international conditions. Agriculture and energy are the sectors of the...
The article is a continuation of research on the relationship between forest habitat type and economic aspects of forest management. It assesses the impact of forest habitat types on reforestation costs. As a part of the implementation of the assumed work objectives, economic activities related to afforestation were identified. The research was carried out using the passive experiment method. The...
Cryphonectria parasitica is a pathogen that causes chestnut blight – a disease that has decimated chestnut trees Castanea dentata in North America and C. sativa in Europe. C. parasitica also infects other tree species, including oaks. Although the disease on oaks progresses and develops in a milder way, it can pose a threat to them. The main purpose of the work is to investigate the risk of C. parasitica...
The efficiency of wood transport depends not only on the maximum load capacity, but also on the duration of individual transport operations. The purpose of the presented research is to analyze the duration of transport stages of Scots pine large−size wood (saw logs) and indicate the factors that affect the structure of the duration of the entire operation. The operation was divided in to truck driving...
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