Matwijchuk L. Ecological estimation of the drained biogeocenoses in West Polyssa Ukraine.

The types of soil degradation on the dried area were studied. Three zones of different plant groupings' replacement had been distinguished here. First of them has catastrophic replacement in plant groupings composition after draining. This has con-firmed with the tree-growth analyses and derivative groupings widening. At the same time the negative consequences for Shatsk-national-nature-park (the important state protected object) have been proved in practice. The regularities of the degradation into natural and agricultural landscapes were determined. The new methods of its mark have been offered for the dried area were proposed. There were suggested agroecological and bioindicated marks of these reclamation geocomplex productive. As a result 14 agroecologic regions in West Polyssa Ukraine were distin-guished and the differentiated strategy for invariable development here was proposed.