Formation conditions of natural waters in the Yangtze river valley and its adjacent territories, China

The purpose of the research is to study the formation conditions of natural waters of the eastern part of the South China Platform in the subduction influence zone under the effect of endogenous and exogenous processes of natural and man-made genesis. The material obtained during the study enables the analysis of the structure of domestic drinking water supply in the eastern regions of China as well as the availability and quality of water resources. The relevance of the study is determined by the fact that the country is currently suffering an acute shortage of fresh water, which is caused by a number of reasons, including economic growth, industrialization, urban development, intensive (often uncontrolled) use of water resources in agriculture and industry of various types, as well as pollution caused by excessive eutrophication. One of the solutions of the water supply problem is understanding of the formation conditions of natural waters and analysis of the dynamics of regime-forming factors. The latter include natural, climatic, geological, structural, and man-made characteristics that determine various elements of the regional water balance. Based on the structural and hydrogeological analysis, recommendations are proposed in order to optimize the structure of water supply and provide rational use of surface and groundwater. The results of the conducted analysis can serve the basis for further research aimed at developing an effective water resources management strategy in Jiangsu, Anhui, and Zhejiang provinces.