Influence of birch admixture on radial growth of pine in mixed pine-birch stands

Abstract

The article deals with the analysis of the influence of the birch trees impurity in pine-birch forest standss on the radial growth of pine trees. With the help of software Q-GIS forest trees mapping was done. Also using Q-GIS features, someanalysis of the influence of the forest stands spatial structure on pine trees characteristics was carried out. Based on anassessment of the radial growth of pine stems, some classification into three groups according to the growth intensity was done. As a result of a regression analysis the effect of forest stands characteristics of birch trees in biogroups on radial growth of pine stems was indicated and researched.