Monitoring and Evaluation on Agricultural Non-point Source Pollution of Xiaoxiang Reservoir,Qujing,Yunnan

By monitoring and analyzing the content of the pollutants from the soil,surface runoff and the silt and sand conveyed by runoff around the Xiaoxiang reservoir of Qujing Municipality,Yunnan Province,the following conclusions were proposed: The pollutants from agricultural non-point source pollution affecting the Xiaoxiang reservoir mainly consisted of the four categories,i.e.,the pollutants from the domestic animals and poultry,surface runoff and the silt and sand conveyed by runoff,and the living sewage produced in the rural area.The nitrogen and phosphorus pollution out of farming activities and from animal and poultry raising was obvious and should be paid much more attention by corresponding departments.The countermeasures and recommendations to control the non-point source agricultural pollution around the reservoir were proposed.