Title
EFFECT OF THE BIOSOCIAL POSITION AND TREE AGE OF SCOTS PINE (PINUS SYLVESTRIS L.) ON DEFOLIATION OF THEIR CROWNS IN MILD DAMAGE ZONE
Autor
Roman Jaszczak, Piotr Jankowski, Łukasz Maliszak
Keywords
Scots pine, Kraft classes, mean defoliation, defoliation scatter, defoliation variability
Abstract
The study analysed the significance of differences of the defoliation, scatter and variability of Scots pine tree crowns of various biosocial classes performed on the basis of observation results from 1996 and 1999 in pine stands of the Siemianice Experimental Forests Division. It was found that, irrespective of the impact of outside factors, the biosocial position of Scots pine (Pinus sylvestris L.) trees had a significant influence on the extent of mean defoliation of their crowns. The age was found to have influence on the increase of the mean defoliation of tree crowns of the main stand. High defoliation variability indicates the necessity of its analysis in the case of more extensive areas.
Pages
27-45
Cite
Jaszczak, R., Jankowski, P., Maliszak, . (2003). EFFECT OF THE BIOSOCIAL POSITION AND TREE AGE OF SCOTS PINE (PINUS SYLVESTRIS L.) ON DEFOLIATION OF THEIR CROWNS IN MILD DAMAGE ZONE. Acta Sci. Pol. Silv. Colendar. Ratio Ind. Lignar., 2(1), 27-45.
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