Babko I. Steppe plant cover differentiation of the Left-Bank Forest-Steppe south part of Ukraine

Problem of floristic and ecology-cenotic diversity of plant cover was evaluated. Metod's of geobotanical investigated, fitoindication, ordination. 100 locations with conserved original vegetation of steppe type has been find. That flora composition and it's systematic, biomorphological, ecology-cenotic, geographical analyses has been carrier out. Aclassified scheme steppe vegetation on a floristic basis, was descriped 2 alliances, 9 associations and 3 subassociations. It has been established that the key factors of steppe shaping are hydroregime and the carbonates content of the soil. Discovered speading of rare spesies and communites.