Evaluation on Non Point Source Pollution of Soil and Water Loss and Its Economic Loss of China
It conducts an overall and systematic evaluation of non point source pollution load caused by soil erosion in China(excluding Taiwan,Hongkong and Macao) of year 2000 after revising output coefficient model by introducing rainfall affecting coefficients,i.e.COD 13.664 6 million tons,TP 197 700 tons and TN 2.741 6 million tons.Its economic loss is about 30.443 72 billion Yuan calculated by the method of cost of replacement.The outcomes of economic loss calculation reflect the status of non point source pollution of China soil and water conservation to a certain degree and provide decision basis of preliminary quantification for soil and water conservation work and water pollution prevention and control of river basin.