水土保持通报2011，Vol.31Issue(6)：186-189,4.
陕西省丹汉江流域面源污染现状及防治对策
Surface Pollution and Countermeasures in Danjiang-Hanjiang Watershed in Shaanxi Province
摘要
Abstract
Surface pollution is the main threat to water quality of Danjiangkou Reservoir.In order to analyze the amount and form of surface pollution in Danjiang—Hanjiang watershed in Shaanxi Province,a study was carried out,and the amounts of the main surface pollutants transported into the rivers and their contribution rates were calculated using the methods of statistical investigation,parameter calculation and comparison analysis.The results indicated that the annual amounts of CODcr,ammonia nitrogen,total-nitrogen,and total phosphorus transported into the two rivers were 103 053,19 851,213 453 and 39 838 t respectively.Domestic sewage,human excrement and urine are the main source of CODcr pollution.Soil and water loss is the main source of nitrogen and phosphorus pollution.The amounts of surface pollutants transported into rivers are related to the factors such as pollution sources baseline,pollutant contents and pollutant scatter degree.It is suggested that more efforts should be invested in soil and water conservation,new countryside construction and extension of ecological and clean small watershed,etc.关键词
丹汉江流域/面源污染/水土保持/南水北调中线工程Key words
Danjiang-Haujiang watershed/surface pollution/soil and water conservation/the middle route of south-to-north water transportation project分类
资源环境引用本文复制引用
王星,李占斌,李鹏,张林红..陕西省丹汉江流域面源污染现状及防治对策[J].水土保持通报,2011,31(6):186-189,4.基金项目
国家自然科学基金项目“植被格局对坡沟水蚀过程调控机理研究” （）
陕西省教育厅重点实验室项目“丹汉江水源区水土流失非点源污染过程与调控”（09JS094） 陕西省教育厅重点实验室项目“陕北能源基地开发建设对水土资源环境演变作用机制研究” （）
