CHANGES IN COMPOSITION AND STRUCTURE OF PLANT COMMUNITIES WITH PARTICIPATION OF
LARIX SIBIRICA IN THE COURSE OF FOREST FORMATION IN THE POLAR URALS
N.I. Andreyashkina
Institute of Plant and Animal Ecology, UB RAS, 620144, Yekaterinburg, 8 Marta str., 202
nell-a@yandex.ru
Keywords: экотон верхней границы древесной растительности, сосудистые растения, структура сообщества, стадии лесообразовательного процесса, Полярный Урал, timberline ecotone, vascular plants, structure of plant community, stages of the process of forest formation, Polar Urals
Abstract
The composition and structure of a number of plant communities were studied in the timberline ecotone of the Polar Urals. The communities represent different stages of the process of forest formation. Correlations between characteristics of the forest stand and the lower layers as well as between the lower layers were analyzed. With the present density, the forest stand creates favourable conditions for the development of shrubs and maintaining species diversity of dwarf shrubs and herbaceous plants.
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