[1]杨卓,陈婧.重金属污染土壤植物修复的EDTA调控效果[J].江苏农业科学,2017,45(02):258-261.
Yang Zhuo,et al.Effect of adding EDTA on phytoremediation of heavy metal contaminated soil[J].Jiangsu Agricultural Sciences,2017,45(02):258-261.
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重金属污染土壤植物修复的EDTA调控效果(PDF)
Yang Zhuo,et al.Effect of adding EDTA on phytoremediation of heavy metal contaminated soil[J].Jiangsu Agricultural Sciences,2017,45(02):258-261.
《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]
- 卷:
- 第45卷
- 期数:
- 2017年02期
- 页码:
- 258-261
- 栏目:
- 资源与环境
- 出版日期:
- 2017-01-20
文章信息/Info
- Title:
- Effect of adding EDTA on phytoremediation of heavy metal contaminated soil
- Keywords:
- -
- 分类号:
- X53
- DOI:
- -
- 文献标志码:
- A
- 摘要:
- 通过盆栽试验比较乙二酸四乙酸(EDTA)对印度芥菜修复镉(Cd)污染土壤的增效作用，探讨EDTA施入量与不同施入阶段对复合污染土壤中Cd、铅(Pb)、锌(Zn)的活化能力和印度芥菜吸收3种重金属的影响。结果表明：Cd添加量相同的条件下，EDTA的施入使印度芥菜生物量明显下降，地上部Cd吸收量明显增加，重金属提取量是未施入EDTA组的0.5~1.63倍，收获时土壤有效态Cd含量施入组低于未施入组；生物量和Cd吸收量随着Cd添加量的增加呈现先升高后下降的抛物线形规律，临界Cd添加量为120 mg/kg；EDTA一次性使用剂量为3 mmol/kg与分3个阶段施入 1 mmol/kg 相比，后者取得了最佳修复效果，Cd、Pb、Zn提取量分别是对照的1.13、3.78、1.29倍。将最优方案应用于微区试验，地上部重金属含量较对照显著增加，对Cd、Pb、Zn的提取量分别是对照的1.24、2.06、207倍。
- Abstract:
- -
参考文献/References:
［1］Chaney R L，Broadhurst C L，Centofanti T，et al. Phytoremediation of soil metals［J］. Current Opinion in Biotechnology，1997，8(3)：279-284.
［2］Salt D E，Smith R D，Raskin I. Phytoremediation［J］. Annu Rev Plant Physiol Plant Mol Biol，1998，49：643-668.
［3］Meagher R B. Phytoremediation of toxic elemental and organic pollutants［J］. Current Opinion in Plant Biology，2000，3(2)：153-162
［4］McGrath S P，Zhao F J. Phytoextraction of metals and metalloids from contaminated soils［J］. Current Opinion in Plant Biology，2003，14(3)：277-282.
［5］Huang J W，Chen J，Berti W R，et al. Phytoremediation of lead-contaminated soils：role of synthetic chelates in lead phytoextraction［J］. Environment Science & Technology，1997，31(3)：800-805.
［6］Vassil A D，Kapulnik Y，Raskin I，et al. The role of EDTA in lead transport and accumulation by Indian mustard［J］. Plant physiology，1998，117(2)：447-453.
［7］Blaylock M J，Salt D E，Dushenkov S，et al. Enhanced accumulation of Pb in Indian mustard by soil-applied chelating agents［J］. Environment Science & Technology，1997，31(31)：860-865.
［8］Cooper E M，Sims J T，Cumningham S D，et al. Chelate-assisted phytoextraction of lead from contaminated soils［J］. Journal of Environmental Quality，1999，28(6)：1709-1719.
［9］Kayser A，Wenger K，Keller A，et al. Enhancement of phytoextraction of Zn，Cd and Cu from calcareous soil：the use of NTA and sulfur amendments［J］. Environment Science & Technology，2000，34(9)：1778-1783.
［10］Song J，Luo Y M，Wu H. Chelate enhanced phytore-mediation of heavy metal contaminated soil［M］//Van Briesen J M，Nowack B. Biogeochemistry of chelating agents. Washington DC：American Chemical Society，2005.
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备注/Memo
- 备注/Memo:
-
收稿日期：2015-11-16
基金项目：2013年度河北省科学技术研究与发展计划“重金属污染土壤原位微生物修复技术研究”(13227504D)。
作者简介：杨卓(1980—)，女，河北秦皇岛人，博士，副教授，主要从事土壤重金属污染与植物修复方面的研究。E-mail：yangzhuo315566@126.com。
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