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	Soil Cd availability to Indian mustard and environmental risk following EDTA addition to Cd-contaminated soil
	Jiang, XJ; Luo, YM; Zhao, QG; Baker, AJM; Christie, P; Wong, MH
刊名	CHEMOSPHERE
	2003-02-01
卷号	50期号:6页码:813-818
关键词	chelate phytoextraction soil solution trace metal translocation
ISSN号	0045-6535
通讯作者	Luo, YM()
英文摘要	A pot experiment was conducted to investigate the influence of EDTA on the extractability of Cd in the soil and uptake of Cd by Indian mustard (Brassica juncea). Twenty levels of soil Cd concentration ranging from 10 to 200 mg kg(-1) were produced by spiking aliquots of a clay loam paddy soil with Cd(NO3)(2). One week before the plants were harvested EDTA was applied to pots in which the soil had been spiked with 20, 40, 60...200 mg Cd kg(-1). The EDTA was added at the rate calculated to complex with all of the Cd added at the 200 mg kg-' level. Control pots spiked with 10, 30, 50... 90 mg Cd kg(-1) received no EDTA. The plants were harvested after 42 days' growth. Soil water- and NH4NO3-extractable Cd fractions increased rapidly following EDTA application. Root Cd concentrations decreased after EDTA application, but shoot concentrations increased when the soil Cd levels were > 130 mg kg(-1) and Cd toxicity symptoms were observed. The increases in soil solution Cd induced by EDTA did not increase plant total Cd uptake but appeared to stimulate the translocation of the metal from roots to shoots when the plants appeared to be under Cd toxicity stress. The results are discussed in relation to the possible mechanisms by which EDTA may change the solubility and bioavailability of Cd in the soil and the potential for plant uptake and environmental risk due to leaching losses to groundwater. (C) 2002 Elsevier Science Ltd. All rights reserved.
收录类别	SCI
WOS关键词	ETHYLENEDIAMINE TETRAACETIC ACID ; NITRILO TRIACETIC ACID ; SEWAGE-IRRIGATED SOIL ; ACCUMULATION ; REDUCTION ; MANGANESE ; METAL ; ZINC
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000180082200022
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559274
专题	南京土壤研究所
通讯作者	Luo, YM
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Univ Melbourne, Sch Bot, Parkville, Vic 3010, Australia 3.Queens Univ Belfast, Belfast BT9 5PX, Antrim, North Ireland 4.Hong Kong Baptist Univ, Dept Biol, Kowloon, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Jiang, XJ,Luo, YM,Zhao, QG,et al. Soil Cd availability to Indian mustard and environmental risk following EDTA addition to Cd-contaminated soil[J]. CHEMOSPHERE,2003,50(6):813-818.
APA	Jiang, XJ,Luo, YM,Zhao, QG,Baker, AJM,Christie, P,&Wong, MH.(2003).Soil Cd availability to Indian mustard and environmental risk following EDTA addition to Cd-contaminated soil.CHEMOSPHERE,50(6),813-818.
MLA	Jiang, XJ,et al."Soil Cd availability to Indian mustard and environmental risk following EDTA addition to Cd-contaminated soil".CHEMOSPHERE 50.6(2003):813-818.

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