Results and prospects of geosystem monitoring in Prioksko-Terrasny biosphere reserve

The empirical-statistical models of spatial organization and function of forest biogeocoenoses of the Prioksko-Terrasny Reserve are developed. The edaphic climaxes of forest communities reflecting the diversity of zonal structures of this subtaiga region are revealed. The causal mechanisms of climax formation are described. The role of catenary organization of biogeocoenoses, as well as the lithogenic factor and the hydrological regime in the structure of forest cover is demonstrated. It is shown that the nature reserve can be a favorable testing ground for regional geosystem monitoring. However, the range of objects for solving the problems of global biosphere monitoring is very limited here due to ubiquitous forest regeneration successions. The two groups of forest biogeocoenoses are proposed as priority objects in respect to structural development and biological cycle parameters – (1) mesomorphic and meso-xeromorphic pine-lime-oak and pine-lime mixed grass and broad grass forests in a wide range of landscape interfaces (from eluvial geotopes to transaccumulative); (2) meso-hydromorphic spruce and spruce-pine acid-green forests of flat poorly drained watersheds (eluvial). This significantly diversifies the objects of geosystem monitoring.