Monitoring of postentrapment landscapes of South Karelia

The work presents a forecast of postentrapment (from 3 to 20 years) succession of agrobiocenoses. It is established that the primary stage of secondary succession (from 3 to 5-6 years) with sufficient productivity (4-8 t/ha C. C.) demonstrates low species diversity of crops thus allowing fast and cost-neutral brining meadows back into operation. When the postentrapment recovery takes from 5 to 10 years the development of biological diversity depends on soil and climatic conditions to a greater degree. It has been found that secondary genesis of bog soils takes place on peat bogs which results in hygrophytic vegetation growth; while dry meadows develop on sod-podzolic soils. The plants development on shungit soils has its own characteristics. It is revealed that with the increase of species diversity the ecosystem productive capacity reduces despite its increasing stability.