Discussion on the Principles and Techniques of Ecological Engineering Control of Non-point Source Pollution in Hangjiahu Plain

This manuscript reviewed the progress of non-point source pollution control, and then discusses the principle of ecological control of NPSP. Four types ecological engineering measures of NPSP in Hangjiahu were proposed: water source area protection forest construction and function optimization technology; rparian of waters biological protection technology; artificial pond-wetland composite system construction technology of catchment areas and phytoremediation technology of polluted water bodies.