空间溢出视角下经济集聚对水污染物排放的影响——基于中国 339 个地级及以上城市数据的实证分析（英文）

编号 zgly0001691445

文献类型 期刊论文

文献题名 空间溢出视角下经济集聚对水污染物排放的影响——基于中国 339 个地级及以上城市数据的实证分析（英文）

作者 周侃  刘汉初  王强 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  KeyLaboratoryofRegionalSustainableDevelopmentModeling  CAS  InstituteofScienceandDevelopment  SchoolofGeographicalSciences  FujianNormalUniversity 

母体文献 Journal of Geographical Sciences 

年卷期 2019年12期

年份 2019 

分类号 X52 

关键词 economicagglomeration  waterpollutantemissions  emissionreductioneffect  citysize  bivariatespatialautocorrelation  spatialspillovereffect 

文摘内容 Whether economic agglomeration can promote improvement in environmental quality is of great importance not only to China’s pollution prevention and control plans but also to its future sustainable development. Based on the COD（Chemical Oxygen Demand） and NH3-N（Ammonia Nitrogen） emissions Database of 339 Cities at the city level in China, this study explores the impact of economic agglomeration on water pollutant emissions, including the differences in magnitude of the impact in relation to city size using an econometric model. The study also examines the spillover effect of economic agglomeration, by conducting univariate and bivariate spatial autocorrelation analysis. The results show that economic agglomeration can effectively reduce water pollutant emissions, and a 1% increase in economic agglomeration could lead to a decrease in COD emissions by 0.117% and NH3-N emissions by 0.102%. Compared with large and megacities, economic agglomeration has a more prominent effect on the emission reduction of water pollution in small-and medium-sized cities. From the perspective of spatial spillover, the interaction between economic agglomeration and water pollutant emissions shows four basic patterns: high agglomeration–high emissions, high agglomeration–low emissions, low agglomeration–high emissions, and low agglomeration–low emissions. The results suggest that the high agglomeration–high emissions regions are mainly distributed in the Beijing–Tianjin–Hebei region, Shandong Peninsula, and the Harbin-Changchun urban agglomeration; thus, local governments should consider the spatial spillover effect of economic agglomeration in formulating appropriate water pollutant mitigation policies.