Estimation of Non-Point Source Pollution in the Yellow River Basin

This paper introduces 5 kinds of non point source pollution estimation method of life in the countryside,agricultural runoff,distributed livestock and poultry breeding,soil erosion and surface runoff of cities in the Yellow River Basin and gives the method and related parameters according to the estimation of the Yellow River Basin of non-point source pollution load.The results show that the Yellow River water non-point source pollution is mainly caused by farmland runoff and soil erosion.TN and TP make a large contribution to the Yellow River water pollution.Pollutants into the river in Longmen-Sanmenxia section of the river are in large quantities.