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| Ｃｄ、Ｐｂ单一及复合污染下土壤酶生态抑制效应及生态修复基准研究 | |
| 引用本文： | 黄云凤,高扬,毛亮,周培,黄志勇.Ｃｄ、Ｐｂ单一及复合污染下土壤酶生态抑制效应及生态修复基准研究[J].农业环境科学学报,2011,30(11). |
| 作者姓名： | 黄云凤 高扬 毛亮 周培 黄志勇 |
| 作者单位： | 1. 集美大学生物工程学院,环境工程技术研究所,厦门361021 2. 陆地水循环及地表过程重点实验窒,中国科学院地理科学与资源研究所,北京100101 3. 上海交通大学农业与生物学院,上海,200240 |
| 基金项目： | 国家自然科学基金(No.41001153,No.50979003); 福建省自然科学基金项目(2011J05114) |
| 摘 要： | 由于土壤酶活性可有效地反映土壤重金属的污染程度,因此,本文通过研究Cd、Pb单一及复合污染对土壤酶(脱氢酶、磷酸酶、脲酶、过氧化氢酶、淀粉酶和蔗糖酶)活性的影响,以期选取合适的土壤酶指标作为Cd、Pb污染的生物标记物,为建立Cd、Pb污染生态修复的基准提供科学依据。研究结果表明,不同的土壤酶活性对Cd、Pb的敏感性各不相同,并且酶活性随土壤重金属浓度增加表现为叠加效应或拮抗效应。Cd、Pb单一及复合污染对脲酶活性抑制作用显著,Cd、Pb复合污染对脲酶活性表现为叠加效应,因此,脲酶可作为土壤Cd、Pb污染的生物标记物。通过半数生态剂量模型研究发现:Cd、Pb污染下,50%脲酶活性受抑制的毒性阈值分别为2273和2703;Cd污染土壤的生态修复基准值为1.33mg·kg-1,Pb污染土壤的生态修复基准值为106mg·kg-1。 |
| 关 键 词： | 土壤酶活性 修复基准 复合污染 拮抗效应 |
The Ecological Inhibition Effect of Soil Enzyme Activity and Ecological Restoration Baseline Under Cd and Pb Single and Combined Pollution |
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| HUANG Yun-feng,GAO Yang,MAO Liang,ZHOU Pei,HUANG Zhi-yong.The Ecological Inhibition Effect of Soil Enzyme Activity and Ecological Restoration Baseline Under Cd and Pb Single and Combined Pollution[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2011,30(11). | |
| Authors: | HUANG Yun-feng GAO Yang MAO Liang ZHOU Pei HUANG Zhi-yong |
| Institution: | HUANG Yun-feng1,GAO Yang2,MAO Liang3,ZHOU Pei3,HUANG Zhi-yong1 (1.School of Biotechnology Engineering,Jimei University,Xiamen 361021,China,2.Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,3.School of Agriculture and Biology,Shanghai Jiaotong University,Shanghai 200240,China) |
| Abstract: | Soil enzyme activity can effectively reflect the pollution degree of heavy metal on soil. In order to select appropriate soil enzymes as a biomarker for Cd and Pb pollution and provide scientific basis for the establishment of ecological restoration baseline on Cd and Pb pollution, the present study is to research on the change of dehydrogenase, phosphatase, urease, catalase, amylase and sucrase activities under Cd or Pb single and combined pollution. The results indicated that the sensitivity of soil enzym... |
| Keywords: | soil enzyme activity restoration criterion combined pollution antagonistic effects |
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