Spatio-Temporal Pattern Evolution and Influencing Factors of Air Pollution-Intensive Enterprises in the Yangtze River Economic Belt
Industrial agglomeration plays a dual role in promoting regional economic development and causing environmental pollution.Under China's"two control zone"policy,taking the air pollution intensive enterprises in the industrial enterprise database(RESSET)for the Yangtze River Economic Belt in 1998,2005 and 2012 as the research object,the locations of the enterprises were obtained by encoding address with Baidu Map API interface.Spatial nearest neighbor analysis,spatial autocorrelation analysis and spatial econometric model were used to investigate the distribution model and spatial agglomeration of the air pollution intensive enterprises,together with the influencing factors.Results show that the number of air pollution intensive enterprises in the Yangtze River economic belt increased from 1998 to 2012,and the spatial distribution presented obvious agglomeration characteristics,which is generally in line with the"center-periphery"structure model.There is a significant positive spatial autocorrelation of changes in the number of air pollution intensive enterprises in districts and counties,and the hot spots are Shanghai,Jiangsu,and Zhejiang.The influence of industrial agglomeration on the spatio-temporal changes in the number of enterprises has gradually increased over time.The labor force and boundary effects have a significant relationship with the number of new enterprises,and there are regional differences in the effect of environmental regulations.
air pollution intensive enterprisesindustrial agglomerationenvironmental regulationSARAR modelYangtze River Economic Belt