ІНДИВІДУАЛЬНІ КОЛЕКЦІЇ ВИКЛАДАЧІВ ТА СПІВРОБІТНИКІВ
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Item SPATIO-TEMPORAL ANALYSIS OF THE ECOLOGICAL STATE OF THE DNIESTER RIVER TRANSBOUNDARY WATER(2021) Shakhman, I.; Bystriantseva, A.; Шахман, І. О.; Бистрянцева, А. М.The ecological state of transboundary water of the Dniester River Basin was analyzed in the context of cross-border cooperation. The major objects of economic activity affecting the state of transboundary water were identified in the Dniester River Basin in Ukraine and Republic of Moldova. It was established that over the years of transboundary cooperation, a decrease in the average annual concentrations of Suspended solids, Nitrites, Chlorides and Sulfates below the maximum permissible values was achieved. The ecological state of the Dniester River transboundary water in time and space was investigated using an integral assessment of the state of the Dniester River water environment. It is recommended to assess the transboundary water ecological state using complex indices. An assessment of the ecological reliability of the Dniester River Basin transboundary water in 2020 was carried out. The research results show that the use of transboundary water of the Dniester River Basin is potentially dangerous. Further cooperation between Ukraine and the Republic of Moldova in the issue of reducing the wastewater containing harmful substances with a synergistic effect, is encouraged.Item MATHEMATICAL DESCRIPTION OF THE PHYSICAL PROCESS OF FORMING THE SURFACE WATERS QUALITY(2020) Bystriantseva, A.; Shakhman, I.; Yermakova-Cherchenko, N.; Goncharenko, T.; Бистрянцева, А. М.; Шахман, І. О.; Єрмакова-Черченко, Н. О.; Гончаренко, Т. Л.Ecological state of the Lower Section of the Dnieper River was estimated by method of calculation of integrated index on the basis of monitoring over the years 2013–2016. Self-purification potential and capability of restoration in time and space (along the river stream) of the aquatic ecosystem of the lower section of the Dnieper River was established. The method for assessing the quality of surface water by hydrochemical parameters in accordance with the fishery standards as the most sensitive to changes of the ecological state of the river was used. The current calculation method takes into account the effect of the total action of substances and is approved practically for the analysis of the ecological state of other rivers. It was discovered, that the state of surface water of region was characterized as unsteady with the low of ecological reliability. Consequently, the processes of self- purification potential and capability of restoration of the aquatic ecosystem are at the low level. The ecological state of the river is characterized as an ecological regress.Item Impact of the Environmental Externalities and Technological Progress on the Stability of Economic System Development on the Example of the Ingulets River Basin(2020) Kobets, V.; Shakhman, І. О.; Bystriantseva, A.; Кобець, В. М.; Шахман, І. О.; Бистрянцева, А. М.Our study demonstrates the introduction of a market-based mechanism for environmental management in conditions of a shortage of natural (water) resources. The purpose of this paper is to investigate impact of the environmental externalities and technological progress on the stability of economic system development. We considered model of upstream and downstream firms with production negative externality, suppose producer pollutant and farm enterprise along Ingulets river using experimental data and OLS method. The results of the study and practical recommendations will allow participants of the technological process to respond quickly on changes in the state of the environment and make effective decisions aimed at ensuring the stability of the economic system and environmental safety. We found that enterprise’s rate of technological development inspired by IT implementation has to be 0.28 times more than technological development of pollutant to save stability of farm enterprise’s output.