Agricultural Non-point Source Pollution in China:Evaluation,Convergence Characteristics and Spatial Effects

作     者：QIU Wenwen ZHONG Zhangbao LI Zhaoliang QIU Wenwen;ZHONG Zhangbao;LI Zhaoliang

作者机构：School of LiteratureLaw and EconomicsWuhan University of Science and TechnologyWuhan 430081China Research Center for Rural Social Construction and ManagementHuazhong Agricultural UniversityWuhan 430070China College of Law and BusinessWuhan Institute of TechnologyWuhan 430205China 

出 版 物：《Chinese Geographical Science》 (中国地理科学（英文版）)

年 卷 期：2021年第31卷第3期

页      面：571-584页

核心收录：

学科分类：082803[工学-农业生物环境与能源工程] 08[工学] 0828[工学-农业工程] 0708[理学-地球物理学] 09[农学] 0815[工学-水利工程] 0903[农学-农业资源与环境] 0704[理学-天文学] 

基　　金：Under the auspices of Key Program of the National Social Science Fund of China(No.16ASH007) 

主　　题：intensity of agricultural non-point source pollution spatial effects inventory analysis spatial econometric model βconvergence 

摘      要：In this study,an inventory analysis approach was used to investigate the intensity of agricultural non-point source pollution(ANSP)and its spatial convergence at national and provincial levels in China from 1999 to *** this basis,spatial factors affecting ANSP were explored by constructing a spatial econometric *** results indicate that:1)The intensity of China s ANSP emission showed an overall upward trend and an obvious spatial difference,with the values being high in the eastern and central regions and relatively low in the western region.2)Significant spatial agglomeration was shown in China s ANSP intensity,and the agglomeration effect was increasing gradually.3)In the convergence analysis,a spatial lag model was found applicable for interpretation of the ANSP intensity,with the convergence rate being accelerated after considering the spatial factors but slower than that of regional economic growth.4)The spatial factors affecting the ANSP intensity are shown to be reduced by improving agricultural infrastructure investment,labor-force quality,and crop production ratio,while the expansion of agricultural economy scale and precipitation and runoff have positive impact on ANSP in the study ***,agricultural research and development(R&D)investment showed no direct significant effect on the ANSP ***,improving the quality of the labor force would significantly reduce the ANSP intensity in the surrounding areas,while the precipitation and runoff would significantly increase the pollution of neighboring *** research has laid a theoretical basis for formulation and optimization of ANSP prevention strategies in China and related regions.