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Information × Registration Number 0218U001725, 0117U006947 , R & D reports Title Scientific substantiation of the solution of priority project tasks for clearing small rivers in the Dnepropetrovsk region popup.stage_title Head Shapar Arkady Grigorovich, Registration Date 13-08-2018 Organization Institute of Problems on Nature Management and Ecology a National Academy of Sciences of Ukraine popup.description2 The main reason for the degradation of the Dnipropetrovsk rivers is the creation of Dnieper reservoirs, which resulted in a decrease in the slope of surface and underground drainage, a decrease in the flow velocity, and the accumulation of bottom sediments. The ecological situation is aggravated by the construction of ponds and reservoirs, which actually creates obstacles that can not be overcome along the river's course. Under the similar mechanism there are losses of surface and soil nutrition of the river. The restoration of the hydrological regime should be carried out in a complex manner using hydro-amelioration, phytomelioration, anti-erosion, zoology, and management measures within the entire basin. The solution of the problems of the location of bottom sediments depends on their chemical composition, determination of fertility and toxicity. For determination of fertility the main parameters are the content of organic matter, nutrient elements (nitrogen and phosphorus), degree of salinity, salinization, sodoexpression. To determine the toxicity it is necessary to carry out laboratory studies on the content of heavy metals, radioactive elements, petroleum products. Fitomeliorative measures should become an indispensable component of ecosystem restoration, as they contribute to counteracting soil erosion, floodplain abrasion, stabilization of seasonal flow, and increased soil nutrition. Local clearing can serve a limited time and space improvement of the environmental situation. Usually, they promote the development of recreational attractiveness of the territory. Measures on phytomelioration and landscape design are becoming relevant. Product Description popup.authors Андрєєв Василь Генрихович Кириченко Вікторія Анатаоліївна Подрезенко Ігор Миколайович Скрипник Олег Олександрович Шапар Аркадій Григорович popup.nrat_date 2020-04-02 Close