Spatial Distribution Characteristics and Influencing Factors of Soil Heavy Metal Pollution in the Yangtze River Economic Belt

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  • 1. Academy of Regional and Global Governance,Beijing Foreign Studies University,Beijing 100081,China;
    2. School of Public Finance and Public Administration,Jiangxi University of Finance and Economics,Nanchang 330013,Jiangxi,China;
    3. Key Laboratory of Data Science in Finance and Economics,Jiangxi University of Finance and Economics,Nanchang 330013,Jiangxi,China;
    4. Key Laboratory of Environment Remediation and Ecological Health (Ministry of Education),Zhejiang University,Hangzhou 310058,Zhejiang,China

Online published: 2024-03-29

Abstract

With the rapid development of economy and the continuous advancement of urbanization,it has severe ecological environmental pollution and degradation problems in the Yangtze River Economic Belt,especially the point source pollution of heavy metals in soil. Based on the soil heavy metal content data of 100 cities in 11 provincial-level regions of the Yangtze River Economic Belt from 2008 to 2018,this paper quantitatively analyzes the characteristics of heavy metal accumulation and pollution in soil in 11 provincial-level regions by the means of geoaccumulation index,health risk evaluation,spatial correlation analysis and other models. The results showed that: 1)The concentration of heavy metals in soils had great spatial heterogeneity in different regions of the Yangtze River Economic Belt. 2) Cd and Hg elements are the main soil heavy metal pollutants in the soil of the Yangtze River Economic Belt. 3) The health risks brought by heavy metal exposure were the highest in children,and the potential carcinogenic risk brought by heavy metal exposure was significantly higher than the non-carcinogenic risk,cities with the high risk were mainly concentrated in Hunan,Jiangxi,Yunnan and Guizhou. 4) Industrial production activities,economic development level and population density and other factors are closely related to the accumulation of heavy metals in the soil. The research can provide theoretical support and scientific basis for the prevention and control of heavy metal pollution and the management and improvement of ecological environment quality in the Yangtze River Economic Belt.

Cite this article

LIANG Zongzheng, HU Bifeng, XIE Modian, NI Hanjie, LI Hongyi . Spatial Distribution Characteristics and Influencing Factors of Soil Heavy Metal Pollution in the Yangtze River Economic Belt[J]. Economic geography, 2023 , 43(9) : 148 -159 . DOI: 10.15957/j.cnki.jjdl.2023.09.016

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