Study on the Ecological Prevention Measures for Agricultural Non-point Pollution

The agricultural non-point pollution is one of the main reasons for the deterioration of water quality in river and lake.This paper analyzed the causes and damages of agricultural non-point pollution,and put forward the ecological engineering measures to control the agricultural non-point pollution in terms of the runoff and agricultural pollution sources.The paper also introduces several typical ecological engineering measures,such as ecological agricultural,wetland system,water and soil conservation,etc.Ecological engineering measures is based on the balance of nataral resources and ecological system.Compared with traditional techniques,ecological engineering is effective,with low cost and sustainable.