辽河源头区典型小流域农业非点源污染模拟  

Simulation of Non-point Pollution at Watershed Scale:a Case Study of the Source Areas of the Liaohe River

作　　者：孙丽娜[1,2] 梁冬梅[1] 马继力[1] 

机构地区：[1]吉林省环境科学研究院,长春130021 [2]吉林农业大学,长春130118

出　　处：《中国农村水利水电》2011年第5期33-35,38,共4页China Rural Water and Hydropower

基　　金：国家重大水专项(2009ZX07208-006)

摘　　要：目前辽河流域农业非点源污染比较突出,因此对其研究具有重要的现实意义及理论价值。选择辽河源头区典型-泉涌小流域为研究区,应用AnnAGNPS模型对泉涌小流域的上游(泉涌河道)及下游(会中河)3-10月的水体进行了农业非点源污染模拟。通过对氨氮、总磷污染物的实地监测及模型模拟估算,运行结果显示AnnAGNPS模型对氨氮具有较好的模拟效果,误差控制在15%以内;对总磷的模拟结果误差较大。氨氮、总磷模拟的最小模拟偏差为1.37%,最大模拟偏差为36.36%。模拟数据表明AnnAGNPS模型在泉涌小流域基本可行,也为该模型在中国北方寒冷地区的合理使用做了有益的尝试。At present,non-point source pollution,especially agricultural non-point source pollution is very serious,so this study of agricultural non-point source pollution in Quanyong watershed has important realistic significance and theoretical value.The Liaohe source area-Quanyong watershed is selected as an example.By using AnnAGNPS model,Quanyong watershed of upstream（Quanyong River） and downstream（Huizhong River） load simulation and estimation the waters of agricultural non-point pollution load simulation and estimation from March to October.Through the ammonia nitrogen and phosphorus pollutants field monitoring and modeling estimation,the results reveal that AnnAGNPS model of ammonia nitrogen has good simulation results and that error control is less than 15%.The results of total phosphorus shows that the error of simulation results is even larger.The simulation results are good,and the minimum and maximum deviations are 1.37% and 36.36% respectively.The authors point out that the feasibility study of the AnnAGNPS model in Quanyong watershed is an attempt to apply the AnnAGNPS in the cold areas in North China.

关 键 词：泉涌小流域 农业非点源 ANNAGNPS模型 模拟研究 

分 类 号：X522[环境科学与工程—环境工程]