The significance, difficulty and key technologies of large scale model applied in estimation of non-point source pollution
大尺度区域非点源污染负荷估算方法研究的意义、难点和关键技术——代“大尺度区域非点源污染研究”专栏序言

Scientific and normative plan can effectively coordinate the relationship among the human being, environment and society, The survey non-point pollution in large area is important base for a lot of kinds plan. Studying on the defect and difficulty in the current systems of non-point pollution load calculation and basing on the water resource planning in China, the significance, function and key technologies of non-point pollution load calculation system on the micro-scale applied in the level of planning are present.