PHYTOCOENOSES UNDER DIFFERENT PHYSICAL-GEOGRAPHIC CONDITIONS: INTERZONAL, INTERHEIGHT BELTS, EXTRAZONAL ONES, ECOTONES AND PARAGENESE (LAKE BAIKAL REGION).

This paper presents information on the vegetation of concrete environments - zonal, interzonal, interheight belts and extrazonal ones as a result of studies done by numerous vegetation researchers for different regions during many years. As this information is separate statistics in the characteristics of the vegetation cover for environmental zones and height belts, it is necessary to take it into account while characterizing the heterogeneity of vegetation structure under different physical-geographic conditions of the vast Baikal Region: this is an important aspect of such studies. Taking into account of opinions of different researchers concerning the characteristics of the structure of different territories favors the understanding of structural peculiarities of the coenoses under concrete physical-geographic conditions at a concrete territory. Stating of typological diversity of phytocoenoses as of proxies of vegetation modern state and formation trends allows to perform in a more concrete way assessments and forecasts of the development of different environments at a regional-topologic level of their spatial and temporal organization. [ABSTRACT FROM AUTHOR]