Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola
Li, Zhu1,2; Wu, Longhua1; Hu, Pengjie1; Luo, Yongming1,3; Zhang, Hao4; Christie, Peter1; Wu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. lhwu@issas.ac.cn
发表期刊ENVIRONMENTAL POLLUTION
ISSN0269-7491
2014-06-01
卷号189页码:176-183
关键词Phytoremediation Metal Bioavailability Bioavailable Contaminated Stripping (Bcs) Diffusive Gradients In thIn-films (Dgt)
DOI10.1016/j.envpol.2014.02.034
产权排序[Li, Zhu; Wu, Longhua; Hu, Pengjie; Luo, Yongming; Christie, Peter] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Li, Zhu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Luo, Yongming] Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Zhang, Hao] Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
作者部门中科院海岸带环境过程与生态修复重点实验室
英文摘要A cadmium/zinc hyperaccumulator extracted metals from four contaminated soils over three years in a glasshouse experiment. Changes in plant metal uptake and soil total (aqua regia-extractable) and available metals were investigated. Plant Cd concentrations in a high-Cd acid soil and plant Zn concentrations in two acid soils decreased during repeated phytoextraction and were predicted by soil available metal concentrations. However, on repeated phytoextraction, plant Cd concentrations remained constant in lightly Cd-polluted acid soils, as did plant Cd and Zn in alkaline soils, although soil available metal concentrations decreased markedly. After phytoextraction acid soils showed much higher total metal removal efficiencies, indicating possible suitability of phytoextraction for acid soils. However, DGT-testing, which takes soil metal re-supply into consideration, showed substantial removal of available metal and distinct decreases in metal supply capacity in alkaline soils after phytoextraction, suggesting that a strategy based on lowering the bioavailable contaminant might be feasible. (C) 2014 Elsevier Ltd. All rights reserved.; A cadmium/zinc hyperaccumulator extracted metals from four contaminated soils over three years in a glasshouse experiment. Changes in plant metal uptake and soil total (aqua regia-extractable) and available metals were investigated. Plant Cd concentrations in a high-Cd acid soil and plant Zn concentrations in two acid soils decreased during repeated phytoextraction and were predicted by soil available metal concentrations. However, on repeated phytoextraction, plant Cd concentrations remained constant in lightly Cd-polluted acid soils, as did plant Cd and Zn in alkaline soils, although soil available metal concentrations decreased markedly. After phytoextraction acid soils showed much higher total metal removal efficiencies, indicating possible suitability of phytoextraction for acid soils. However, DGT-testing, which takes soil metal re-supply into consideration, showed substantial removal of available metal and distinct decreases in metal supply capacity in alkaline soils after phytoextraction, suggesting that a strategy based on lowering the bioavailable contaminant might be feasible. (C) 2014 Elsevier Ltd. All rights reserved.
文章类型Article
资助机构Environmental Sciences & Ecology
收录类别SCI
语种英语
关键词[WOS]THLASPI-CAERULESCENS ; TRACE-METALS ; CD ; PLANTS ; RHIZOSPHERE ; ZN ; AVAILABILITY ; ZINC ; DGT ; EXTRACTANTS
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000336466900023
引用统计
被引频次:80[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/8740
专题中国科学院海岸带环境过程与生态修复重点实验室
通讯作者Wu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. lhwu@issas.ac.cn
作者单位1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
4.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
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Li, Zhu,Wu, Longhua,Hu, Pengjie,et al. Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola[J]. ENVIRONMENTAL POLLUTION,2014,189:176-183.
APA Li, Zhu.,Wu, Longhua.,Hu, Pengjie.,Luo, Yongming.,Zhang, Hao.,...&Wu, LH .(2014).Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola.ENVIRONMENTAL POLLUTION,189,176-183.
MLA Li, Zhu,et al."Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola".ENVIRONMENTAL POLLUTION 189(2014):176-183.
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