The Changes in Managed Fir Forest in Beskid MTS Due to Forest Management After 11 Years

Abstract

Abstract.The new phytosociological studies on permanent study plot (40 m x 40 m) divided into 16 subplots in managed forest were conducted in upper part of basin of Bystrzanka (Beskid Niski Mts, SE Poland). The aim of the research was to determine the direction of changes in the community Rubus hirtus-Abies alba community in the vicinity of forest where forest management treatments are applied.. It was recorded that total number of species increased from 52 in 2000 to 80 in 2011. The DCA showed significant changes in species composition and cover of species. Among others, the increase of forest edge species (epilobisation) and ruderal species (therophytization) and first of all the increase of meadow was observed. The structure of the community also changed; the mean cover of shrub species decreased.