PLANT COMMUNITIES OF THE ENVIRONMENTS CONTACT SITES AS INDICATORS OF THE VEGETATION GENESIS: SOME AREAS OF LAKE BAIKAL BASIN AS EXAMPLES

Usage of methods for determination of long-time trends of the dynamics of vegetation genesis on the background of climate changes becomes more important at modern stage of the assessment of natural systems development. Solution of such a task results inevitably in necessity to correct the understanding of existing processes occurring in the vegetation cover. It allows establishing a direction of their development in system of natural factors of any territory. The aim of this study is to revel peculiarities of spatial and temporal organization of phytocenoses-ecotones between hight belts, zonal forest-steppe and zonal steppe, as well as one of phytocenoses reflecting paragenese as indicators of structure-dynamical organization of vegetation genesis for different areas of Lake Baikal region.