南水北调中线工程水源地的水质保护

介绍了南水北调中线工程水源地丹江口水库的水质现状，分析了影响因素及存在的问题。指出了目前丹江口水库总体水质良好，符合水源地水质要求，但库周和上游地区水污染防治严重滞后，是水库水质的潜在隐患，应加大治理力度，采取有效措施，以保护丹江口水库水质，确保一库清水向北流。丹江口水库库区污染主要是农业非点源污染及库汊区水体的污染，针对污染现状，提出了对策建议。

Water quality protection in water source area of the middle route project of South to North Water Transfer

The water quality at present of Danjiangkou reservoir in water source area of Middle Route Project of South to North Water Transfer is presented and influence factors and the existing problems are analyzed.The results demonstrate that the water quality at present of Danjiangkou reservoir is qualified and meets water quality requirement as water source,but water quality pollution control surrounding the reservoir and in the upstream area falls behind severely,being a hidden trouble of water quality of the reservoir.The quality control and treatment of water shoulld be strengthened with powerfull measures to protect water quality in the reservoir to safeguard clear water flowing toward north.The pollution in Danjiangkou reservoir area is non-point pollution and water body pollution in the reservoir bays.In the light of pollution situation at present,the countermeasures are suggested.