松华坝流域非点源污染关键源区识别  

Identification of Critical Nonpoint Pollution Source Areas In Songhuaba Watershed

作　　者：何承刚[1,2] 冯彦[1] 李运刚[1] 

机构地区：[1]云南大学亚洲国际河流中心,云南昆明650091 [2]国家林业局昆明勘察设计院,云南昆明650225

出　　处：《安徽农业科学》2009年第28期13768-13771,共4页Journal of Anhui Agricultural Sciences

基　　金：云南省教育厅基金(07J51432);国家重点基础发展研究计划(2003CB415105)资助

摘　　要：使用USLE模型作为识别松华坝流域非点源污染关键源区的方法,利用DEM、土地利用、降雨和土壤类型数据库计算出USLE模型中的各影响因子及年土壤流失量。结果表明,在牧羊河、冷水河和松华坝水库集水区中,非点源污染高风险区主要集中在牧羊河集水区,占其控制面积的1.61%;而在冷水河与松华坝水库集水区所占比例则较小,分别占其控制面积的0.39%和0.19%。在松华坝流域的水质治理过程中要针对不同的关键源区制定合理科学的规划措施。USLE model were used as a method of identification Songhuaba watershed non-point source pollution of the key source region. DEM, land use, rainfall and soil type database were utilized to calculate the various impact factors of USLE model and annual soil loss. The results showed that the non-point source pollution in high-risk areas mainly concentrated in the Muyang River catchment area, its control area of 1.61% ; and in Lengshui River and the Songhuaba Reservoir the proportion of the catchment areas were smaller, respectively of its control area of 0.39% and 0.19%. In the process of governance the water quality in Songhuaba Basin, formulated a reasonable science planning measures aimed to critical source areas.

关 键 词：松华坝流域 非点源污染 USLE模型 

分 类 号：X524[环境科学与工程—环境工程]