农业非点源污染负荷核算方法研究

Research on Methods of Agricultural Non-point Source Pollution Load Calculation

根据实际资料情况和技术条件,将农业非点源污染负荷核算方法整合为监测调查条件下核算、有限资料条件下估算及基于机理性模型估算3类,具体方法包括输出系数法及改进输出系数法、氮磷负荷模型法、PLOAD模型计算法、污染分割法、平均浓度法、降雨量差值法、水量水质相关关系法及机理模型模拟预测法等,分析了各方法在不同资料条件下的技术共性,为农业非点源污染负荷核算技术提供了参考依据。

According to the conditions of data and technology, three kinds of general methods under different conditions which include observation data, limited information and mechanism model simulation are integrated from agricultural non-point source pollution load calculation methods. In detail, it includes output coefficient approach and revised output coefficient model, nitrogen and phosphorus load modeling, PI.OAD model calculation, pollution load division method, mean concentration method, rainfall deduction, correlation method of water quantity and quality, mechanism model simu- lation. The properties of common technology under different data conditions are discussed, which provides reference for agricultural non-point source pollution load calculation technology.