Field studies were carried out on the earthen dam of channel reservoir Tuyamuyun hydrosystem Amudarya River (Uzbekistan), which was put into operation in 1984 according to traditional method using control and measuring equipment embedded body dam. The water levels upper lower reaches, piezometers, drainage discharge measured. Maximal 130.00 head race observed middle October minimal 117.00 March...

The alluvial plain (Anqing section) of the lower reaches Yangtze River basin is facing increasing groundwater pollution, not only threatening safety drinking water for local residents and sustainable development utilization resources but also ecological security Basin. Therefore, it necessary to conduct a preliminary analysis on hydrochemical characteristics evolution law in this area. This stu...