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Vertical Distribution and Controlling Factors Exploration of Sc, V, Co, Ni, Mo and Ba in Six Soil Profiles of The Mun River Basin, Northeast Thailand

Author

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  • Wenxiang Zhou

    (Institute of Earth Sciences, China University of Geosciences, Beijing 10083, China)

  • Guilin Han

    (Institute of Earth Sciences, China University of Geosciences, Beijing 10083, China)

  • Man Liu

    (Institute of Earth Sciences, China University of Geosciences, Beijing 10083, China)

  • Chao Song

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China)

  • Xiaoqiang Li

    (Institute of Earth Sciences, China University of Geosciences, Beijing 10083, China)

  • Fairda Malem

    (Environmental Research and Training Center, Department of Environmental Quality Promotion, Klong 5, Klong Luang, Pathumthani 12120, China)

Abstract

Exploring the enrichment and controlling factors of heavy metals in soils is essential because heavy metals can cause severe soil contamination and threaten human health when they are excessively enriched in soils. Soil samples (total 103) from six soil profiles (T1 to T6) in the Mun River Basin, Northeast Thailand, were collected for the analyses of the content of heavy metals, including Sc, V, Co, Ni, Mo, Ba. The average contents of soil heavy metals decrease in the following order: Ba, V, Ni, Sc, Co, and Mo (T1, T3, T4 and T5); Ni, V, Ba, Co, Sc, Mo, and Ba (T2); Ba, V, Sc, Ni, Mo, and Co (T6). An enrichment factor (EF) and geoaccumulation index were calculated to assess the degree of heavy metal contamination in the soils. The EFs of these heavy metals in most samples range from 0 to 1.5, which reveals that most heavy metals are slightly enriched. Geoaccumulation indexes show that only the topsoil of T1 and T2 is slightly contaminated by Ba, Sc, Ni, and V. Soil organic carbon (SOC), soil pH and soil texture are significantly positively correlated with most heavy metals, except for a negative correlation between soil pH and Mo content. In conclusion, the influence of heavy metals on soils in the study area is slight and SOC, soil pH, soil texture dominate the behavior of heavy metals.

Suggested Citation

  • Wenxiang Zhou & Guilin Han & Man Liu & Chao Song & Xiaoqiang Li & Fairda Malem, 2020. "Vertical Distribution and Controlling Factors Exploration of Sc, V, Co, Ni, Mo and Ba in Six Soil Profiles of The Mun River Basin, Northeast Thailand," IJERPH, MDPI, vol. 17(5), pages 1-14, March.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:5:p:1745-:d:329691
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    References listed on IDEAS

    as
    1. Rui Qu & Guilin Han & Man Liu & Xiaoqiang Li, 2019. "The Mercury Behavior and Contamination in Soil Profiles in Mun River Basin, Northeast Thailand," IJERPH, MDPI, vol. 16(21), pages 1-16, October.
    2. Man Liu & Guilin Han & Qian Zhang & Zhaoliang Song, 2019. "Variations and Indications of δ 13 C SOC and δ 15 N SON in Soil Profiles in Karst Critical Zone Observatory (CZO), Southwest China," Sustainability, MDPI, vol. 11(7), pages 1-16, April.
    3. Jie Zeng & Guilin Han & Qixin Wu & Yang Tang, 2019. "Heavy Metals in Suspended Particulate Matter of the Zhujiang River, Southwest China: Contents, Sources, and Health Risks," IJERPH, MDPI, vol. 16(10), pages 1-16, May.
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