NATURAL CONDITIONS OF FORMATION OF THE LANDSCAPE-MORPHOLOGICAL STRUCTURE OF THE ANAPA BAY-BAR (BLACK SEA COAST, KRASNODAR KRAI)
V.I. Kravtsova1, V.V. Krylenko2
1Lomonosov Moscow State University, 119991, Moscow, Leninskie gory, 1, Russia
2Shirshov Institute of Oceanology, Russian Academy of Sciences, 117997, Moscow, Nakhimovskii pr., 36, Russia
Keywords: Black Sea, Anapa bay-bar, geosystems, sea coast, relief, satellite images
Abstract
Detailed mapping of the landscape and morphological structure of the Anapa bay-bar based on interpretation of aerial and satellite images and field research was performed during 2012-2019. At the new level we analyzed the formation history of the Anapa bay-bar geosystem and its constituent elements, including the Vityazevskaya bay-bar. It was found that the landscape-morphological structure of the Anapa bay-bar was formed under the influence of multiple fluctuations of the Black Sea level and the volume of solid runoff of the Kuban river. Variability in external conditions predetermined a significant difference in the structure of individual sections of the Anapa bay-bar. A characteristic feature of the Vityazevskaya bay-bar, in contrast to the other areas, is the presence of relict dune ridges. Analysis of the landscape-morphological structure, supplemented by hydro-lithodynamic regime data, showed that the Vityazevskaya bay-bar is distinguished by the greatest width and development of all longitudinal zones, which are characteristic for the Anapa bay-bar: the beach, the dune belt, hilly sands and the lowland around the lagoon. The structure and location of landforms reflects the stages of formation of the accumulative body under study during the change in the configuration of the adjacent shores under the influence of abrasion and other processes. The Vityazevskaya bay-bar, located in the most hydro-dynamically active zone, is subject to periodic effects of extreme waves. During this period, a hydrogenous reformation of the beach relief occurs, and the dune zone undergoes a significant transformation. Later, the eolian transformation of the coastal relief is observed again, and vegetation develops. A high variability in the relief and periodic flooding and drainage of the territory contributes to the formation of a significant variety of dune and aquatic landscapes, which determine the high environment-oriented value of the Vityazevskaya bay-bar.
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