LANDSCAPE ACTIVITY OF MAN-MADE ECOSYSTEM PLANTS ON THE TERRITORY OF RYAZAN OBLAST
The article presents the characteristics of plants species composition at basic anthropomorphic habitats on the territory of Ryazan oblast (620 species). The species are divided into 7 activity groups. 35 species (5.6 %) have the highest landscape activity, 83 species (13.4 %) are rather active. Native plants play the leading role in these groups. Most of the discovered species 502 (81.0 %) are characterized by low activity. Adventitious plants prevail among them. We have considered the species activity as an appraisal ratio of their segetal potential and role in biodiversity.