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Current Situation of Agricultural Soil Pollution in Jiangsu Province: A Meta-Analysis

Author

Listed:
  • Rui Zhang

    (School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
    The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China)

  • Tao Chen

    (College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
    Key Laboratory of Plant Nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling 712100, China)

  • Lijie Pu

    (School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
    The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China
    School of Environmental Engineering, Nanjing Institute of Technology, Hongjing Road 1, Nanjing 211167, China)

  • Lu Qie

    (School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
    The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China)

  • Sihua Huang

    (School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
    The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China)

  • Dejing Chen

    (School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China
    The Key Laboratory of the Coastal Zone Exploitation and Protection, Ministry of Natural Resources, Nanjing 210023, China)

Abstract

In recent years, heavy metal contamination in agricultural soils in Jiangsu Province has attracted more and more attention. However, most studies have been characterized by their small scale, few samples, and short-term monitoring. The overall status and temporal accumulation characteristics of heavy metals have not been fully reflected. Therefore, this paper attempted to provide a comprehensive analysis of the current status of heavy metals and provide accurate information for soil pollution management in Jiangsu Province. This paper collected available data in the literature (1993–2021) on heavy metal-polluted agricultural soils in Jiangsu Province. Based on these available data, the weighted mean values of each heavy metal were obtained by meta-analysis. Then, the ecological risks in soils were evaluated and spatiotemporal variations in the accumulation of heavy metals were explored. In addition, suggestions for pollution prevention and control were made by predicting future heavy metal concentrations. The results showed that Cd and Hg were the major polluting elements in Jiangsu Province. The spatial enrichment of heavy metals followed the pattern of southern > northern > central. Heavy metal concentrations in Nanjing, Suzhou, and Xuzhou should be paid special attention. The ecological risk level of heavy metals in agricultural soils in Jiangsu Province was high, predominantly contributed by Hg and Cd. The accumulation of most heavy metals gradually decreased after 2010, while the opposite happened with Cd. Jiangsu Province should continue to take active pollution control measures in order to maintain the decreasing trend of heavy metal concentrations in farmland soils. This study could provide a scientific and theoretical basis for the development of pollution control and soil remediation measures.

Suggested Citation

  • Rui Zhang & Tao Chen & Lijie Pu & Lu Qie & Sihua Huang & Dejing Chen, 2023. "Current Situation of Agricultural Soil Pollution in Jiangsu Province: A Meta-Analysis," Land, MDPI, vol. 12(2), pages 1-21, February.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:2:p:455-:d:1064322
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    References listed on IDEAS

    as
    1. Shufeng She & Bifeng Hu & Xianglin Zhang & Shuai Shao & Yefeng Jiang & Lianqing Zhou & Zhou Shi, 2021. "Current Status and Temporal Trend of Potentially Toxic Elements Pollution in Agricultural Soil in the Yangtze River Delta Region: A Meta-Analysis," IJERPH, MDPI, vol. 18(3), pages 1-15, January.
    2. Shuangmei Tong & Hairong Li & Li Wang & Muyesaier Tudi & Linsheng Yang, 2020. "Concentration, Spatial Distribution, Contamination Degree and Human Health Risk Assessment of Heavy Metals in Urban Soils across China between 2003 and 2019—A Systematic Review," IJERPH, MDPI, vol. 17(9), pages 1-22, April.
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