Influence of cadmium-contaminated soil on earthworm communities in a subtropical area of China
文献类型： 外文期刊
作者： Wang, Kun 1 ; Qiao, Yuhui 1 ; Zhang, Huiqi 1 ; Yue, Shizhong 1 ; Li, Huafen 1 ; Ji, Xionghui 2 ; Crowley, David 3 ;
作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
2.Hunan Acad Agr Sci, Changsha 410125, Hunan, Peoples R China
3.Hengyang Acad Agr Sci, Hengyang 421151, Peoples R China
关键词： Heavy metal; Ecotoxicology; Earthworm communities; Biological indices
期刊名称：APPLIED SOIL ECOLOGY （ 影响因子：4.046； 五年影响因子：4.884 ）
ISSN： 0929-1393
年卷期： 2018 年 127 卷
页码：
收录情况： SCI
摘要： Research was conducted to examine the influence of historical cadmium (Cd) contamination and soil properties on the biomass, diversity and structure of earthworm communities in a subtropical area (Hunan province) of South China. Fourteen earthworm species were identified across the twelve field sampling sites. Metaphire californica was the most widespread and dominant species. Results showed that both earthworm density and the Simpson diversity index decreased inversely with increasing soil Cd concentrations. The proportion of adult earthworms was greater in soils with high levels of Cd contamination. The abundance of earthworms was also correlated with soil organic carbon and total nitrogen contents. Cd concentrations in M. californica were well predicted by both the total and available soil Cd concentrations (R-2 = 0.83, R-2 = 0.90, p < 0.01, respectively), and suggested that this species may have particular applications for risk assessment and use in bioremediation.
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