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南水北调中线工程是解决我国北方地区缺水，优化水资源区域配置的重大战略举措。加强水源地保护和水土保持工作，对于确保水质和保证调水工程安全运行，促进区域经济社会可持续性发展、实现人与自然和谐具有重要意义。据有关资料，南水北调中线工程陕西省区内污染源主要是城镇
The Middle Route of South-to-North Water Diversion Project is a major strategic move to solve the water shortage and optimize the regional allocation of water resources in northern China. Strengthening water source protection and soil and water conservation work is of great significance for ensuring the water quality and ensuring the safe operation of water transfer projects, for promoting the sustainable economic and social development in the region and for the harmony between man and nature. According to relevant information, the main sources of pollution in Shaanxi Province are the cities and towns in the midline of the South-to-North Water Diversion Project