Аннотация:The paper deals with the attempt to assess the changes in plant species activity as a result of anthropogenic transformation of landscapes. The approaches of the Russian–Soviet school of landscape cartography and land cover mapping based on remote sensing data are used. The species activity was determined by standard methods accepted in the Russian–Soviet floristics. Using the specific examples, the main trends of the species activity changes from the natural condition of the territory to the present moment and in the last 40 years are shown.