Study of plant communities of ecotopes formed by denudation at cliff

摘要

The plant communities of the sea coasts are formed in the specific conditions of the natural environment. Denudationprocesses on the sea coast have significant impact to the development of cliff vegetation. This paper presents the resultsof studies of plant communities’ characteristics on the intensively denudated Black Sea coast. There are four mainecotopes marked by the nature of denudation processes and substrate. Seventy seven plant species are detected at the seacliff of Tuapkhat massif during geobotanical study.July 6, 2012 on the Black Sea coast near Gelendzhik the extreme storm rainfalls took place. Numerous landslides andlandfalls were noted on the coast as a result of rain. The most damaged by denudation sites were identified by analyzingof satellite image series (WorldView-2, WorldView-3, GeoEye-1, Pleiades-1). At the second stage, surveys were carriedout from the drone, followed by the construction of digital earth models (DEM) and orthophotoplans for test sites. Fieldgeobotanical investigations at the test sites were performed. It is determined that the distribution of landslide cones isirregular. In total the 20 large landslides with a volume more than 100 m3 were noted. In the course of our research, asignificant effect of the past natural extreme phenomenon to the plant communities on the coast was noted. After theextreme rainfall, the new ecotope was formed by landslide bodies. This ecotope is characterized by increased speciesdiversity.