Research On The Impact Of Environmental Regulations On Agricultural Non-point Source Pollution

The control of agricultural non-point source pollution is an important topic of sustainable development,which is related to the green development of agriculture and the water tanks,rice bags and vegetable baskets of urban and rural residents.At present,the deterioration of agricultural non-point source pollution has exacerbated the risk of soil and water pollution,and may threaten the high-quality living standards of residents.The establishment of a mature and effective environmental regulatory system has become an important task of the government.The agricultural production backgrounds of various regions in China are very different.Further discussion of the characteristics and effects of environmental regulation from the perspective of regional differences will help improve the environmental regulation system and promote the development of environmentally friendly agriculture.This study uses the relevant data of 31 provinces（municipalities and autonomous regions）in China from 2010 to 2019 as the research sample.The inventory analysis method is used to calculate the emissions of agricultural non-point source pollutants,total nitrogen,total phosphorus,and chemical oxygen demand,and to analyze the current situation of agricultural non-point source pollution from the time and structural dimensions.Collected 1,113 environmental regulation documents based on agricultural non-point source pollution control,and analyzed the strength,objectives,measures,and inspection characteristics of environmental regulation using text quantitative methods.Among them,environmental regulation measures include the following four types: command control type,economic Incentive,technical support,publicity and education.Construct static and dynamic panel data models to analyze the effects of agricultural non-point source pollution reduction in the environmental regulation level across the region.Furthermore,this study analyzes the environmental regulation characteristics and emission reduction effects of the eastern,central,western,and northeastern regions,as well as large agricultural and non-agricultural provinces.Research shows:（1）The situation of agricultural non-point source pollution is still severe,and livestock and poultry breeding is an important pollution unit.（2）The intensity,objectives,measures,and inspections of environmental regulations based on agricultural non-point source pollution control have the characteristics of volatility.On the whole,local governments have paid more attention to agricultural non-point source pollution.（3）From a global perspective,the environmental regulations implemented by local governments at this stage have the effect of reducing agricultural non-point source pollution,but their effectiveness is still limited.（4）The focus of the environmental regulation documents in each region is different.Environmental regulation in the northeastern region and major agricultural provinces has a significant effect on reducing agricultural non-point source pollution.According to the research content and results,this paper puts forward the following countermeasures and inspirations:（1）Pay attention to the pollution control of livestock and poultry breeding sources.（2）Coordinate the use of various types of environmental regulation measures,and attach importance to the publicity and education of environmental regulation measures.（3）Each region should improve the environmental regulation documents based on the actual situation.The eastern,central and western regions should further promote the effective implementation of the documents,and the northeastern region should continue to exert the emission reduction effect of the existing environmental regulation documents.Major agricultural provinces should further improve the environmental regulation system of agricultural non-point source pollution,while non-agricultural provinces need to pay more attention to local agricultural development,and formulate and implement environmental regulation documents for agricultural non-point source pollution.（4）Strengthen cooperation between local governments.