作    者：張俊會等
影響因子：1.18
刊物名稱：Chemistry and Ecology
出版年卷：DIO:10.1080/ 02757540. 2014.907282

文章摘要：The interactions between microbial properties and metal partitioning were investigated in paddy soils during the cultivation of rice in field experiments. Samples from an electronic waste-recycling centre (e-waste centre) were used as the contaminated sample. Multiple regressions analysis showed that activity of soil enzymes and the abundance of microbial physiological groups were affected by residual Cd, residual Zn, exchangeable Cu, exchangeable Zn and Fe–Mn-oxidising Cd. The residual Cd concentration could predict 66.7, 35.5 and 62.4% of the variance in the activity of sulfate reductase, peroxidase and urease, respectively, while the concentrations of exchangeable Cu, exchangeable Zn and Fe–Mn-oxidisingCdexplained 43.2, 9.9 and 65.2% of the variance in catalase, sulfate reductase and acid phosphatase, respectively. The contents of residual Cd and residual Zn could predict 89.0 and 42.7%, respectively, of the variations in the abundance of total bacteria and metal-resistant bacteria.However, metal partitioningwas affected by soil microorganisms. Organic Zn and Fe–Mn-oxidising Cd were easily affected by soil bacteria and sulfur-oxidising bacteria. The abundance of soil bacteria explained 69.8 and 64.7% of the variance in organic Zn and Fe–Mn-oxidising Cd, and sulfur-oxidising bacteria explained 21.0% of the variance in Fe–Mn-oxidising Cd.

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