Natural Conditions and Anthropogenic Change of the Coastal Zone in the Area of Kacha Village

Yu. N. Goryachkin*, A. P. Fedorov, V. V. Dolotov, V. F. Udovik

Морской гидрофизический институт РАН, Севастополь, Россия

* e-mail: yngor@mhi-ras.ru

Abstract

Development of not yet used parts of the coastal zone poses the task of developing appropriate management principles based on scientific ideas and forecast. The aim of the work is to characterize natural conditions, features of lithodynamics and anthropogenic impact on the coastal area adjacent to the village of Kacha (Sevastopol region); using this site as a case, to demonstrate the problems arising out of economic development; and to give recommendations for rational use of natural resources. The data of repeated geomorphological surveys, observations of the coastline dynamics at the controls, measurements of the beach profiles were analyzed using the results of tacheometric and photogrammetric surveys, satellite images, and other materials. Geological and geomorphological conditions and lithodynamics are considered in detail. In the area under study, a complex pattern of redistribution of sediment volumes is observed; it is characterized by a significant seasonal and interannual variability of alongshore sediment migrations. The average rate of the cliff edge retreat is 0.43 m/year in the northern part of the site, 0.04 m/year in the central part and 0.10 m/year in the southern part. At the same time, the central part of the cliff falls due to soil crumbling in the absence of landslides. According to satellite data, over a 2 km area centered at the Nemetskaya Clough, average displacement of the cliff edge was about 0.27 m/year in the period from 2004 to 2016. The most probable average annual value of sediment input due to destruction of cliffs is about 6,000 3/year. Provided earlier in the literature, the values of the cliff retreat and sediment influx due to its destruction are not confirmed by the data of long-term observations and seem to the authors to be significantly overestimated. Specific cases of hazardous exogenous processes (landslides) and current anthropogenic impact on the coastal zone are considered. Specific recommendations are given for further economic development of the coastal zone.

Keywords

coastal zone, lithodynamic processes, anthropogenic impact, Kacha, Sevastopol region

Acknowledgments

The research is performed under State Order no. 0827-2020-0004.

For citation

Goryachkin, Yu.N., Fedorov, A.P., Dolotov, V.V. and Udovik, V.F., 2020. Natural Conditions and Anthropogenic Change of the Coastal Zone in the Area of Kacha Village. Ecological Safety of Coastal and Shelf Zones of Sea, (4), pp. 5–21. doi:10.22449/2413-5577-2020-4-5-21 (in Russian).

DOI

10.22449/2413-5577-2020-4-5-21

References

  1. Agardy, T., Alder, J., Dayton, P., Curran, S., Kitchingman, A., Wilson, M., Catenazzi, A., Restrepo, J., Birkeland, C. [et al.], 2005. Coastal Systems. In: R. Hasan, R. Scholes, A. Neville, eds., 2005. Ecosystems and Human Well-being: Current State and Trends, Vol. 1. Washington : Islandpress, pp. 513–549. Available at: https://www.researchgate.net/publication/292123520_Current_state_and_trends_assessment [Accessed: 01 December 2020].
  2. Pranzini, Е. and Williams, А., eds., 2013. Coastal Erosion and Protection in Europe. London: Routledge, 488 p. https://doi.org/10.4324/9780203128558
  3. Zenkovich, V.P., 1960. [Morphology and Dynamics of the Soviet Black Sea Coast, Vol. 2]. Moscow: AS USSR Publ., 216 p. (in Russian).
  4. Agarkova-Lyakh, I.V., 2017. Development of Exogenous Geological Processes in Coastal Zone of Crimea from Сape Lukull to Сape Konstantinovskij. Monitoring Systems of Environment, 30, pp. 58–67. doi:10.33075/2220-5861-2017-4-58-67 (in Russian).
  5. Agarkova-Lyakh, I.V., 2007. [Contemporary State in the Coastal Zone of Sevastopol region and Particularities of Anthropogenic Change]. Culture of Black Sea People = Kultura Narodov Prichernomoria, 118, pp. 7–13 (in Russian).
  6. Shuisky, Yu.D., 2005. Basical Peculiarities of Morphology and Dynamic of the Western Crimea Peninsula Coast. In: MHI, 2005. Ekologicheskaya Bezopasnost' Pribrezhnykh i Shel'fovykh Zon i Kompleksnoe Ispol'zovanie Resursov Shel'fa [Ecological Safety of Coastal and Shelf Zones and Comprehensive Use of Shelf Resources]. Sevastopol: ECOSI-Gidrofizika. Iss. 13, pp. 62–72 (in Russian).
  7. Pankeeva, T.V. and Mironova, N.V., 2019. Spatiotemporal Changes in the Macrophytobenthos of Laspi Bay (Crimea, Black Sea). Oceanology, 59(1), pp. 86–98. doi:10.1134/S0001437019010168
  8. Pankeeva, T.V., Mironova, N.V. and Novikov, В.A., 2019. Mapping of Bottom Vegetation of Kruglaya Bay (the Black Sea, Sevastopol). Ecological Safety of Coastal and Shelf Zones of Sea, (3), pp. 61–71. doi:10.22449/2413-5577-2019-3-61-71 (in Russian).
  9. Guiry, M.D. and Guiry, G.M., 2020. AlgaeBase. World-wide Electronic Publication. Galway: National University of Ireland. Available at: http://www.algaebase.org [Accessed: 15 April 2020].
  10. Shuisky, Yu.D., 1986. Problems of Drifts Balance Investigation in Coastal Zone. Leningrad: Gidrometeoizdat, 240 p. (in Russian).
  11. Goryachkin, Yu.N. and Dolotov, V.V., 2019. Sea Coasts of Crimea. Sevastopol: Colorit, 256 p. (in Russian).
  12. Udovik, V.F. and Goryachkin, Yu.N., 2015. Estimations of Interannual Variability of Longshore Sediment Transport on the Sector of Coastal Zone from Sevastopol to Yevpatoriya. In: MHI, 2015. Ecological Safety of Coastal and Shelf Zones of Sea. Sevastopol: ECOSI-Gidrofizika. Iss. 1, pp. 55–65 (in Russian).
  13. Nugraha, W., Parapat, A.D., Arum, D.S. and Istighfarini, F., 2019. GNSS RTK Application to Determine Coastline Case Study at Northen Area of Sulawesi and Gorontalo. E3S Web of Conferences, 94, 01016. https://doi.org/10.1051/e3sconf/20199401016
  14. EGSA, 2019. Report on Surveying User. Needs and Requirements. EGSA, pp. 66. Available at: https://www.gsc-eu-ropa.eu/sites/default/files/sites/all/files/Report_on_User_Needs_and_Requirements _Mapping_Surveying.pdf [Accessed: 01 December 2020].
  15. Taddia, Y., Stecchi, F. and Pellegrinelli, A., 2019. Using DJI PHANTOM 4 RTK Drone for Topographic Mapping of Coastal Areas. In: G. Vosselman, S.J. Oude Elberink and M.Y. Yang, eds., 2019. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Enschede, the Netherlands. Vol. XLII-2/W13, pp. 625–630. https://doi.org/10.5194/isprs-archives-XLII-2-W13-625-2019
  16. Goryachkin, Yu.N., 2016. Coast Protections of Crimea: West Coast. Part 2. Hydro-technika, (2), pp. 38–43. Available at: http://coast-crimea.ru/index.php/publications/send/7-publications/31-crimea-protection-facilities-western-coast-part-2 [Accessed: 01 December 2020] (in Russian).

Download the article (PDF, in Russian)