Farm Ecosystem Management and Control of Nonpoint Source Pollution
农田生态系统管理与非点源污染控制

Agricultural nonpoint source pollution due to widely application of fertilizers and pesticides is becoming the major part of water deterioration.In this paper,the relationship between agricultural nonpoint source pollution and different tillage methods,such as no tillage,little tillage and conventional tillage,the amount of fertilizer application,application methods and seasons,and various irrigation methods,such as furrow irrigation,basin irrigation and sprinkle irrigation is analyzed.Some approaches on agricultural landscape design for controlling nonpoint source pollution are suggested,which will be helpful for making a decision on sustainable agricultural development.