| EDTA与EDDS螯合诱导印度芥菜吸取修复重金属复合污染土壤研究 |
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| 引用本文： | 宋静,钟继承,吴龙华,王国庆,李晨曦,骆永明,钱薇.EDTA与EDDS螯合诱导印度芥菜吸取修复重金属复合污染土壤研究[J].土壤,2006,38(5):619-625. |
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| 作者姓名： | 宋静 钟继承 吴龙华 王国庆 李晨曦 骆永明 钱薇 |
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| 作者单位： | 1. 中国科学院南京土壤研究所土壤与环境生物修复研究中心,南京,210008;土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008
2. 中国科学院南京土壤研究所土壤与环境生物修复研究中心,南京,210008;中国科学院南京地理与湖泊研究所,南京,210008 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);国家自然科学基金;中国科学院知识创新工程项目 |
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| 摘 要： | 盆栽试验比较研究了EDTA和易降解的EDDS对复合污染土壤中Cu、Zn、Pb、Cd的活化能力及印度芥菜对4种重金属的吸收与转运特征。结果表明:施用量相同的条件下,EDDS活化土壤Cu的能力与EDTA相当;而EDDS活化土壤Zn、Pb、Cd,尤其是活化土壤Pb、Cd的能力小于EDTA,这与两种螯合剂与不同重金属形成螯合物的稳定常数相一致。向复合污染土壤中施入3mmol/kg和6mmol/kgEDDS均可诱导印度芥菜叶中超量积累Cu。本研究中3mmol/kgEDDS的不同施用方式(单次施,分2次和4次施)对印度芥菜叶片Cu含量的影响差异不显著。各处理印度芥菜叶中的重金属浓度要远高于茎中的浓度,茎中的Cu浓度随土壤溶液Cu浓度线性增加,而叶中Cu的浓度随土壤溶液Cu浓度先增加后下降。
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| 关 键 词： | 土壤重金属 螯合诱导 植物吸取 印度芥菜 |
Chelate-induced extraction and remediation of Brassica juncea on heavy metals mix-polluted soils by EDTA and EDDS |
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| SONG Jing,ZHONG Ji-cheng,WU Long-hu,WANG Guo-qing,LI Chen-xi,LUO Yong-ming and QIAN Wei.Chelate-induced extraction and remediation of Brassica juncea on heavy metals mix-polluted soils by EDTA and EDDS[J].Soils,2006,38(5):619-625. |
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| Authors: | SONG Jing ZHONG Ji-cheng WU Long-hu WANG Guo-qing LI Chen-xi LUO Yong-ming and QIAN Wei |
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| Institution: | Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjng 210008, China,Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China,Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China and Soil and Environment Bioremediation Research Centre, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China;State Key Laboratory of Soil and Sustainable Agriculture(Institute of Soil Science, Chinese Academy of Sciences), Nanjing 210008, China |
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| Abstract: | |
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| Keywords: | Heavy metal Chelate-induced Phytoextraction Indian mustard |
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