Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Repeated phytoextraction of four metal-contaminated soils using the cadmium/zinc hyperaccumulator Sedum plumbizincicola
	Li, Zhu 1,2; Wu, Longhua 1; Hu, Pengjie 1; Luo, Yongming1,3 ; Zhang, Hao 4; Christie, Peter 1
刊名	ENVIRONMENTAL POLLUTION
	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)
ISSN号	0269-7491
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
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
中文摘要	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.
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.
学科主题	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	THLASPI-CAERULESCENS ; TRACE-METALS ; CD ; PLANTS ; RHIZOSPHERE ; ZN ; AVAILABILITY ; ZINC ; DGT ; EXTRACTANTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000336466900023
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8740]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
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
推荐引用方式 GB/T 7714	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,&Christie, Peter.(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.