The Three Gorges Reservoir Watershed Pollution Characteristics And Its Comprehensive Renovation Program

This paper analyzes the characteristics of the Three Gorges Reservoir watershed pollution, based on the proposed watershed pollution in the reservoir area comprehensive improvement measure.Types of small watershed pollution in the Three Gorges reservoir area is mainly industrial pollution type, life polluting, non-point source pollution, and mixed polluting. Major source of pollution is domestic sewage, industrial waste water, rural non-point source, as well as soil erosion.Cause major pollution of urban sewage and garbage harmless treatment rate is low, comprehensive utilization of livestock and poultry manure is low, non-point source pollution control measures difficult to implement; weak environmental awareness, environmental governance, a serious shortage of capital investment; water resources, low prices, there is no the formation of water conservation and water to repeat the price constraints; irrational industrial structure, the structural pollution is serious; part of the industrial enterprises of the industrial wastewater discharge standards are not, waste-water treatment Loupai serious; urban sewage treatment facilities, lack of funds the construction and operation of the slow, the current management and operating mechanism of the imperfect; some basins in the river sediment to release large quantities of pollutants deposited on the water causing secondary pollution.Analysis of combination of pollution, as well as the actual situation of the Three Gorges region, offered to water the starting point and overall control as the guiding principle to ensure the safety of drinking water to determine the priority control unit, the implementation of pollution control, water resource, non-point source control, watershed restoration, as well as the ecological the integration of environmental management to strengthen water pollution comprehensive improvement ideas.A combination of industrial pollution sources to strengthen governance and industrial restructuring, promoting clean production, emphasis on urban sewage treatment, strengthen the agricultural non-point source pollution control and other measures to build long-term operating mechanism to achieve in the reservoir area and upper reaches of the water environment of small watershed functions.