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Evaluation of semi-arid arable soil heavy metal pollution by magnetic susceptibility in the Linfen basin of China

文献类型： 外文期刊

作者： Yang, Pingguo 1 ; Byrne, James M. 2 ; Li, Hongjun 3 ; Shao, Hong-Bo 4 ;

作者机构： 1.Shanxi Normal Univ, Coll Life Sci, 1 Gongyuan St, Linfen 041000, Peoples R China

2.Univ Tubingen, Ctr Appl Geosci, Tubingen, Germany

3.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang, Peoples R China

4.Jiangsu Acad Agr Sci, Inst Agrobiotechnol, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China

关键词： Heavy metal contamination;magnetic susceptibility;semi-arid Linfen basin;topsoil

期刊名称：ARID LAND RESEARCH AND MANAGEMENT （ 影响因子：1.696； 五年影响因子：1.747 ）

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收录情况： SCI

摘要： The values of magnetic susceptibility and Cu, Zn, Ni, Pb, Cr, Cd concentrations of 70 topsoil samples were analyzed and assessed for soil contamination in the Linfen basin of China. The contamination factor (CF) and pollution load index (PLI) were used to assess the degree of heavy metal pollution. All heavy metal concentrations in the soil were greater than the background values of Shanxi agricultural soils. PLI values ranged from 1.27 to 2.18 indicating significant soil contamination. Principal component analyses and correlation analyses were adopted for data treatment to identify heavy metal sources. Cu, Zn, Ni, and Pb were responsible for 31.2% of the total variance suggesting that these elements mainly originated from agrochemistry and atmospheric deposition. A positive correlation of magnetic susceptibility with Cu and PLI were observed in cultivated soils. This study shows that magnetic susceptibility measurements can be used as a technique in which different types of soil pollution can be distinguished and can also be used to rapidly monitor anomalies in areas that might require expensive and time consuming detailed chemical analyses.

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