Registration Number
0224U032452,
(0124U003176)
, R & D reports
Title
Land Cover Change in River Deltas of the Black Sea Basin
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Моніторинг змін земельного покриву у дельтах Дніпра, Дністра й української частини дельти Дунаю внаслідок регулювання річкового стоку в умовах війни Росії проти України.
Head
Starodubtsev Volodymyr M., Доктор біологічних наук
Registration Date
21-10-2024
Organization
National University of Life and Environmental Sciences of Ukraine
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To investigate the effect of large river flow regulation by reservoirs in the northern coast of the Black Sea (Dnieper, Dniester and the Ukrainian part of the Danube) on the land cover in their deltas.
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The object of research is the causes and processes of land cover changes in the deltas of the northern coast of the Black Sea (e.g., the Dnieper, Dniester, and the Ukrainian part of the Danube rivers).
The subject of research is the influence of anthropogenic factors on river delta formation in the northern part of the Black Sea basin.
Research was conducted to detect land cover changes in the rivers’ deltas of the Dnipro, Dniester and Danube under the influence of flow regulation, economic use, and military operations. The dynamics of land cover changes were investigated in the lower Dnieper before and after the Kakhovskaya HPP dam explosion and the descent of the reservoir of the same-name. It is shown that in late June - early July 2023, the territory was covered with a layer of silt, and five months after the disaster, the delta ecosystem was gradually restored.
The Dniester River flow regulation by reservoirs is weaker than in the Dnipro River, and seasonal and multi-year flow fluctuations are more significant. However, there is also a clear tendency for overgrowth of delta reservoirs with hygrophytic and hydrophytic vegetation. This process is most active in the upper part of the studied area and at the mouth of the Dniester River. From 1975 to 2023, the hydromorphic landscapes expanded here at a rate of 89.8 hectares per year.
Changes in the ecological state of the landscapes of the Danube Delta are largely caused by the agricultural development of new territories, especially in the central part of the delta. Canals and dams are being built, channels are being deepened on large areas of flood plains, which contributes to fodder production, fish farming, reed harvesting, etc. However, such measures cause the drainage of wetlands. In general, the average annual growth rate of land area in the Ukrainian part of the Danube Delta was 84.16 hectares per year. First of all, it is caused by the development of wetland vegetation and the accumulation of organic
Product Description
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Ladyka Maryna M.
Ladyka Oleksandr V.
Piskunova Larysa E.
Palamarchuck Svitlana P.
Starodubtsev Volodymyr M.
Terentiev Oleksii Ye.
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2024-10-21
