Abstract: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.
武晓峰, 李婷. 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
[J]. 中国环境科学, 2011, 31(4): 680-687.
WU Xiao-Feng, LI Ting. Study on the assessment model about contaminant load distribution in basins—take Sheyuchuan small watershed as example. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(4): 680-687.