| Cr~(3+)、Ni~(2+)单一及复合污染对水稻土酶活性的影响 |
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| 引用本文： | 任宗玲,黄丽芸,李永涛,戴军.Cr~(3+)、Ni~(2+)单一及复合污染对水稻土酶活性的影响[J].华南农业大学学报,2010,31(4). |
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| 作者姓名： | 任宗玲 黄丽芸 李永涛 戴军 |
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| 作者单位： | 1. 华南农业大学,资源环境学院,广东,广州,510642
2. 广东省农业科学院,科技情报研究所,广东,广州,510640 |
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| 基金项目： | 法国-中国先进研究计划资助项目，广东省自然科学基金，华南农业大学校长基金，农业部生态农业重点开放实验室开放课题 |
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| 摘 要： | 在室内恒温培养条件下,研究了外源Cr3+、Ni2+单一及复合污染对水稻土脲酶、酸性磷酸酶及过氧化氢酶活性的影响.结果表明,低浓度Ni2+处理对脲酶、酸性磷酸酶有不同程度的激活作用,而对过氧化氢酶起一定的抑制作用;中、高浓度Ni2+及各污染水平的Cr3+、Cr-Ni复合污染处理对3种酶活性均表现为抑制作用;Ni2+处理对土壤酶活性的抑制效应顺序为脲酶酸性磷酸酶过氧化氢酶;Cr3+和Cr-Ni复合污染处理对脲酶活性的抑制效应最大,对过氧化氢酶、酸性磷酸酶活性的抑制效应相似;Cr-Ni复合污染处理对脲酶、酸性磷酸酶主要表现为协同作用,对过氧化氢酶则主要在污染初期表现为协同作用.
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| 关 键 词： | 单一污染 复合污染 水稻土 酶活性 |
Effects of Single and Combined Pollution of Cr3+ and Ni2+ on Soil Enzyme Activities in Paddy Soil |
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| REN Zong-ling,HUANG Li-yun,LI Yong-tao,DAI Jun.Effects of Single and Combined Pollution of Cr3+ and Ni2+ on Soil Enzyme Activities in Paddy Soil[J].Journal of South China Agricultural University,2010,31(4). |
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| Authors: | REN Zong-ling HUANG Li-yun LI Yong-tao DAI Jun |
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| Institution: | REN Zong-ling1,HUANG Li-yun2,LI Yong-tao1,DAI Jun1(1 College of Resources and Environment,South China Agricultural University,Guangzhou 510642,China,2 Institute of Scientific and Technical Information,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China) |
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| Abstract: | The effects of single and combined pollution of Cr3+ and Ni2+ on the activities of urease,acid phosphatase and catalase in paddy soil were investigated through the lab-scale experiment by artificially controlling temperature and humidity.The results showed that urease and acid phosphatase activities were stimulated under low added Ni2+ concentration in single Ni2+ treatments,while the activities of the three enzymes in the rest treatments were all inhibited.Ni2+ inhibited the enzyme activities in the order ... |
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| Keywords: | Cr3+ Ni2+ |
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