Coupling Relationship Between Polluting Industrial Agglomeration and Water Environment Pollution in Southern Jiangsu of Taihu Lake Basin
Zhang Shanshan;Zhang Lei;Zhang Luocheng;Gao Shuang;Key Laboratory of Environmental Engineering of Jiangsu Province, Jiangsu Provincial Academy of Environmental Sicence Jiangsu Provincial Academy of Environmental Science;Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences;
This article uses the Kernel Density Distribution method to analyze the industrial agglomeration of sub-industries, and evaluates the discharging intensity of industrial waste water, COD and NH3-N in each township taking the case study of Suzhou, Wuxi and Changzhou district. Based on this, the article chooses textile industry and manufactures of chemical materials and products whose contribution of output value and contaminants are relatively high to study the coupling relationship between industrial agglomeration and water environment pollution, and also analysis the coupling relationship of all enterprises. Results show that: 1) The pollution-intensive manufacturing industries centralized mainly in Huishan district of Wuxi City, the eastern part of Jiangyin city, adjacent parts of Changzhou and Wujin District, and Kunshan City, and generally there are less in Changzhou City. 2) The spatial distribution of discharging intensity of COD and NH3-N have some comparability, and the emission intensity decreased compared with the year of 2006, the emission intensity of industrial point sources in Changzhou City and the surrounding towns reduced significantly, and trend to transfer to surrounding suburbs. 3) Based on the special-correlation between industrial agglomeration and pollution distribution, the study area was divided into four categories: high-agglomeration and high-pollution area, low-agglomeration and high-pollution area, low-agglomeration and low-pollution area, high-agglomeration and low-pollution area. The acreage is 781.25 km2, 2 993.75 km2, 12 187.50 km2, 1 187.50 km2 and account for4.56%, 17.46%, 71.06%, 6.92% of the total area respectively, the coupling effect between industrial agglomeration and pollution distribution is obvious, and about 75%(high-agglomeration and high-pollution, low-agglomeration and low-pollution) of the area have positive spatial coupling effects. It illustrates that the agglomeration of manufacturing industry has important effects on water environment. The low-agglomeration and low-pollution and high-agglomeration and low-pollution area increased apparently compared with before. It demonstrates that industrial pollution construction has a remarkable effects, the water environment pollution tends to reduce. This article analysis the coupling relationship between industrial agglomeration and water environment pollution which provides scientific basis for rational distribution of industry.
【Fund】： 中国科学院重点部署项目(KZZD-EW-10-04-2);; 国家科技部重大专项(2018ZX07208007)资助~~
【CateGory Index】： X22;X52
【CateGory Index】： X22;X52