Study on Non-point Source Pollution Caused by Agriculture in Shaanxi District in Weihe River Valley

The non-point source pollution caused by agriculture is the main source of today's environmental pollution.According to the non-point source pollution caused by agriculture in Weihe River valley,the main nonpoint pollution sources in the Shaanxi district of this valley in 2005 such as water and soil erosion pollution source,fertilizer pollution source,living sewage pollution source,animal dung pollution source and agricultural film pollution source were analyzed,on which,the non-point source pollution sources and pollution situations caused by agriculture in this region were made clear.The strategic measure of controlling the non-point source pollution caused by agriculture in Shaanxi district of Weihe River valley was put forward to developing the green agriculture.