Chen Ming, Chen Hongquan
Ginling College, Nanjing Normal University, Nanjing, 210097, China.
Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, USA.
Environ Sci Pollut Res Int. 2021 Sep;28(34):46319-46333. doi: 10.1007/s11356-021-14743-3. Epub 2021 Aug 2.
With the industrial-level panel data on total output and wastewater discharge over the period of 1997 to 2018, this paper employs GIS and ESDA methods to empirically investigate the spatial relationship between industrial total output and wastewater discharge. In this paper, we empirically examine whether and how industrial wastewater discharge in a particular province may affect the wastewater discharge in its neighboring provinces. Results suggest that provinces (municipalities) with large-scale industrial sewage discharge are located along riversides and coastal areas and these discharges then gradually distribute to coastal, central, and western areas. Results also show a strong spatial autocorrelation of industrial wastewater discharge between the observed local province and its neighboring provinces which is increasing over time. In addition, there is also a significant spatial spillover effect of industrial wastewater discharge among neighboring provinces in China's eastern and central regions, indicating a structural convergence of high-pollution industries.
本文利用1997年至2018年工业总产值和废水排放的行业层面面板数据，采用地理信息系统（GIS）和探索性空间数据分析（ESDA）方法，对工业总产值与废水排放之间的空间关系进行实证研究。本文实证检验了特定省份的工业废水排放是否以及如何影响其邻近省份的废水排放。结果表明，工业污水排放量大的省份（直辖市）位于沿江和沿海地区，这些排放随后逐渐向沿海、中部和西部地区扩散。结果还显示，观察到的本地省份与其邻近省份之间的工业废水排放存在很强的空间自相关性，且这种相关性随时间推移而增强。此外，中国东部和中部地区邻近省份之间的工业废水排放也存在显著的空间溢出效应，表明高污染行业存在结构趋同现象。
