Justification of measures for the

Abstract

Purpose. To substantiate and assess the environmental and economic impact of pond improvement measures within the village of Troitske (Synelnykivskyi district Dnipro region) in order to improve the ecological and hydrological regimes of the water body. The methods. An analytical study of the best international and domestic practices for the renaturalisation of river ecosystems and water bodies. Calculations of engineering and technological parameters, as well as ecological and economic assessment of the research results, were performed using generally accepted methods, state legal norms and standards of Ukraine. The geo-ecological assessment of the current state of the pond catchment area and water quality was carried out using field expeditionary research with water sampling and laboratory analysis (2019-2021). The open-access software package (geographic information systems) QGIS was used in the study. Findings. The general methods, techniques and measures for the renaturalisation of the pond are substantiated and evaluated. It is determined that for a water body with a water mirror area of 13.7 hectares and a catchment area of 24.3 hectares, the duration of the main types of organisational and technological work will be about 5 months, labour costs – 4311.9 man-hours, and the total estimated cost of the project is about UAH 20 million. The originality. It is a comprehensive scientific and practical substantiation of measures for reclamation of aquatic ecosystems of rivers and artificial reservoirs for the conditions of the south-eastern regions of Ukraine, depending on the existing natural and economic situation. Engineering, technical and organisational approaches to achieving an environmentally safe level of functioning of aquatic and near-water ecosystems and obtaining a socio-economic effect from the implementation of renaturation measures have been improved. The dependencies of different types of impact on water bodies during the implementation of environmental projects are substantiated. Practical implementation. The example of a typical water management facility shows the possibility of developing technological and organisational solutions for land reclamation and obtaining a comprehensive environmental and economic effect as a result of the implementation of environmental management measures. The results obtained can be applied to the further development of programmes for the restoration and rational use of water and land resources based on the principle of integrated management at the level of individual settlements, communities, catchment areas or regions.