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Distribution of Potential Harmful Trace Elements and Potential Ecological Risk in the Jiulongchi Wetland of Fanjing Mountain, Southwest China

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  • Weidan Shen

    (School of Karst Science, Guizhou Normal University/State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China
    These authors contributed equally to this work.)

  • Kangning Xiong

    (School of Karst Science, Guizhou Normal University/State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China
    These authors contributed equally to this work.)

  • Yang Gao

    (School of Karst Science, Guizhou Normal University/State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China)

  • Mingying Quan

    (School of Geographic Sciences, South China Normal University, Guangzhou 510631, China)

  • Haijun Peng

    (State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China)

  • Ting Yang

    (School of Geographic Sciences, South China Normal University, Guangzhou 510631, China)

  • Linfeng He

    (School of Chemistry and Materials Science, Guizhou Normal University, Guiyang 550025, China)

  • Kunshan Bao

    (School of Geographic Sciences, South China Normal University, Guangzhou 510631, China)

Abstract

In order to understand the distribution and ecological risk of potential harmful trace elements (PHTEs) in the high altitude areas of the Fanjing Mountain World Natural Heritage Property, 30 surface samples including soil and plants were collected in April, 2019 in the Jiulongchi wetland which lies in the saddle between the New Jinding Peak of Fanjing Mountain and Fenghuang Peak. The contents of 23 major and trace elements were determined, and the pollution characteristics and potential ecological risk of 11 PHTEs (Mn, V, Zn, Cr, Co, Ni, Cu, As, Cd, Sb and Pb) were discussed. The element contents showed significant differences in plant and soil samples. Enrichment factor and single-factor pollution index demonstrated that Mn, Zn, Co, As and Cd in the soil were in a clean state. The potential ecological risk index and pollution load index indicated an overall good ecological condition of Jiulongchi wetland, with a weak pollution degree. Comparisons of relevant studies showed the anthropogenic activities have considerable impacts on the pollution status of PHTEs with significant spatial differences in Fanjing Mountain. Multivariate statistical analysis proved that Pb and Sb were main pollutants of the soil in the Jiulongchi wetland, and the mining and smelting of minerals such as mercury, manganese and lead-zinc ore in the adjacent areas could be the main pollution sources through atmospheric deposition. This study could provide targeted strategies for the environmental protection and management of the Property and give scientific evidence for the pollution prevention in southwest China.

Suggested Citation

  • Weidan Shen & Kangning Xiong & Yang Gao & Mingying Quan & Haijun Peng & Ting Yang & Linfeng He & Kunshan Bao, 2020. "Distribution of Potential Harmful Trace Elements and Potential Ecological Risk in the Jiulongchi Wetland of Fanjing Mountain, Southwest China," IJERPH, MDPI, vol. 17(5), pages 1-16, March.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:5:p:1731-:d:329306
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    References listed on IDEAS

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    1. Xiangyu Kong & Ting Liu & Ziheng Yu & Zhe Chen & Da Lei & Zhiwei Wang & Hua Zhang & Qiuhua Li & Shanshan Zhang, 2018. "Heavy Metal Bioaccumulation in Rice from a High Geological Background Area in Guizhou Province, China," IJERPH, MDPI, vol. 15(10), pages 1-14, October.
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    Cited by:

    1. Xiangyang Zhou & Kejia Zhou & Rong Liu & Shanggui Sun & Xinqiang Guo & Yanni Yang & Lixia Chen & Kun Zou & Wenjuan Lei, 2021. "Significant Decrease in Heavy Metals in Surface Sediment after Ten-Year Sustainable Development in Huaxi Reservoir Located in Guiyang, Southwestern China," IJERPH, MDPI, vol. 18(14), pages 1-22, July.

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