陕西省丹汉江流域农业非点源污染区划  

Zoning of Agricultural Non-Point Source Pollution in Dan-Han River Basin in Shaanxi Province

作　　者：张军[1,2] 李鹏[1] 唐润芒[3] 贾春蓉 王添[1] 汤珊珊[1] 

机构地区：[1]西安理工大学水利水电学院,西安710048 [2]西华师范大学国土资源学院,四川南充637009 [3]陕西省水土保持局,西安710004

出　　处：《水土保持研究》2017年第2期325-329,共5页Research of Soil and Water Conservation

基　　金：国家自然科学基金重点项目(41330858;41471226);陕西省自然科学基础研究计划项目(2014JM2-4036)

摘　　要：农业非点源污染是导致地表水环境质量恶化的重要原因。丹汉江流域是南水北调中线工程的主要水源地,实现农业非点源污染分区管理分类控制,将进一步确保中线工程的水质安全。以陕西省丹汉江流域27个县(区)为基本单元,采用水质指数法、聚类分析法和等标污染负荷法等方法,进行了污染源敏感性评价和污染类型识别,进而实现流域农业非点源污染分区。结果显示:(1)丹汉江流域农业非点源污染可分为5级敏感区,且敏感区等级呈现以中心城市为核心,以干流为轴线,向南北两侧递减的分布格局。(2)农业非点源污染控制类型主要包括农业种植、畜禽养殖、生活排放3种基本类型。(3)敏感区等级越高,污染类型越复杂。Agricultural non-point source pollution（ANPSP）is an important cause of surface water quality deterioration.The Dan-Han River Basin is the major water sources of the middle route of the South to North Water Diversion Project.Zoning management and classified control implemented for ANPSP will further ensure the water quality safety of the middle route.We took 27counties（or districts）in Dan-Han River Basin in Shaanxi Province as basic units,the sensitivity assessment and pollution type identification of ANPSP were calculated using the methods of index of water quality,cluster analysis and the equivalent pollution loading.Finally,the pollution control zones were determined.The results show that：（1）the sensitive zones of ANPSP of Dan-Han River Basin were divided into five levels,taking the central city as the core,the main stream as the axis trace,and decreasing on both sides of the main stream from the north-south,this distribution pattern of sensitive zone based on the sensitivity has been formed;（2）the control types of ANPSP included three basic types,such as agricultural cultivation,livestock and poultry breeding,life discharge;（3）the higher levels of sensitive zone were,the more complex pollution types were.

关 键 词：农业非点源污染 丹汉江流域 敏感区 污染类型 

分 类 号：X32[环境科学与工程—环境工程]