流域内污染负荷分布的评价模型研究--以密云县蛇鱼川小流域为例  

Study on the assessment model about contaminant load distribution in basins——take Sheyuchuan small watershed as example

作　　者：武晓峰[1] 李婷[1] 

机构地区：[1]清华大学水文水资源研究所,水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《中国环境科学》2011年第4期680-687,共8页China Environmental Science

基　　金：饮用水源保护区水源保护三道防线划分方法示范研究项目

摘　　要：在引入欧洲学者建立的潜在非点源污染指数模型PNPI的基础上,根据我国的社会经济条件和流域状况对其进行了土地利用类型扩展、土地利用类型比对和土壤渗透性等级划分等3个重要改进,建立了一个评价流域污染负荷分布的潜在污染指数模型PPI(Potential Pollution Index),并在北京市密云水库流域典型的3个小流域——曹家路、黄土坎和蛇鱼川进行了初步应用和分析验证.研究表明,改进后的PPI模型能够综合考虑养殖场、旅游区等各种污染源对河流水质的潜在污染影响,可用其评价流域内各种污染源对河流造成的潜在污染的空间分布.On the basis of potential non-point pollution index（PNPI） which is developed in Europe,according to the social economy condition and basin situation,3 important improvements were made including extending land use types,matching land use types and dividing the soil permeability classes to build up potential pollution index（PPI） which can be used to assess pollution distribution in the watershed.The improved PPI was applied and verified by qualitative analysis in three typical watersheds-Caojialu,Huangtukan and Sheyuchuan.The improved PPI could comprehensively evaluate the potential threat on river water from different pollution sources including farms and tourist area,and then could evaluate the space distribution of potential pollution to the river from different sources in the watershed.

关 键 词：潜在非点源污染指数PNPI 潜在污染指数PPI 潜在污染影响 空间分布 

分 类 号：X821[环境科学与工程—环境工程]