Current Situation of Agricultural Non-Point Source Pollution and Its Control

Agricultural non-point source pollution (AGNPS) is considered a key problem affecting global water quality. The main causes of AGNPS are the loss of N, P, and other pollutants in agricultural production activities, the improper treatment of livestock and poultry manure, and rural household garbage and sewage. However, there is a lack of systematic summary on the source of AGNPS. This paper summarizes the sources, current situation, prevention, and control policies of AGNPS, and technical control policy and fertilizer reduction policy, which can contribute to solve AGNPS arising from agricultural production, such as renewable energy policies and control technologies that mitigate AGNPS caused by livestock industry, urban–rural integration policies and domestic sewage biogas treatment have mitigated AGNPS caused by rural life. Therefore, this paper can provide an important basis and guidance for solving AGNPS.