[两种污泥连续施用对冲积土酶活性和重金属含量的影响]
[Effect of continual application of two kinds sludge on enzyme activities and heavy metal concentrations in alluvial soil].
作者信息
Tan Qiling, Hu Chengxiao, Zhao Bin, Mclaren R G, Cheng Li, Wu Lishu
机构信息
Huazhong Agricultural University, Wuhan 430070, China.
出版信息
Ying Yong Sheng Tai Xue Bao. 2004 Mar;15(3):497-500.
Pot culture experiments were conducted to study the effect of industrial and sewage sludge on some enzyme activities and heavy metal concentrations in alluvial soil. The results showed that the heavy metals in both industrial and sewage sludge were mainly non-exchangeable, and those in sewage sludge had a lower concentration but a higher bio-availability than in industrial sludge. The application of sludge could increase the activities of soil urease, polyphenol oxidase and neutral phosphatase, and the polyphenol oxidase and neutral phosphatase activities showed a reverse relationship with the concentrations of soil exchangeable Zn and Cu. Soil polyphenol oxidase and catalase activities could be used to indicate the Zn pollution in soil.
进行了盆栽试验，以研究工业污泥和污水污泥对冲积土中某些酶活性和重金属浓度的影响。结果表明，工业污泥和污水污泥中的重金属主要为非交换态，污水污泥中重金属的浓度较低，但生物有效性高于工业污泥。污泥的施用可以提高土壤脲酶、多酚氧化酶和中性磷酸酶的活性，多酚氧化酶和中性磷酸酶的活性与土壤交换性锌和铜的浓度呈负相关。土壤多酚氧化酶和过氧化氢酶的活性可用于指示土壤中的锌污染。
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