Influence of cadmium-contaminated soil on earthworm communities in a subtropical area of China

文献类型： 外文期刊

第一作者： Qiao, Yuhui

作者： Qiao, Yuhui;Zhang, Huiqi;Yue, Shizhong;Li, Huafen;Ji, Xionghui;Crowley, David

作者机构：

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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