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	Rhizosphere Concentrations of Zinc and Cadmium in a Metal Contaminated Soil After Repeated Phytoextraction By Sedum Plumbizincicola
	Liu, Ling1; Wu, Longhua1; Li, Na1; Luo, Yongming1; Li, Siliang1; Li, Zhu1; Han, Cunliang1; Jiang, Yugen2; Christie, Peter3
刊名	INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
	2011
卷号	13期号:8页码:750-764
关键词	Zn Cd repeated phytoextraction Sedum plumbizincicola rhizosphere properties
ISSN号	1522-6514
DOI	10.1080/15226514.2010.525558
通讯作者	Wu, Longhua(lhwu@issas.ac.cn)
英文摘要	A growth chamber pot experiment and a field plot experiment were conducted with the installation of rhizobags to study the effects of repeated phytoextraction by Sedum plumbizincicola on the bioavailability of Cd and Zn in the rhizosphere and bulk soil. Repeated phytoextraction gave significantly lower Cd and Zn concentrations in both rhizosphere and bulk soil solutions compared with soil without repeated phytoextraction. The depletion rates of NH4OAc-extractable Zn in rhizosphere soil in each treatment (L-PS, L-NPS, H-PS, and H-NPS) were 59.7, 18.0, 16.3, and 18.6%, respectively. For NH4OAc-extractable Cd, the depletion rates in treatments L-PS, L-NPS, H-PS, and H-NPS were 6.67, 29.4, 40.3, and 41.4%, respectively. Plant shoot biomass decreased in the order H-PS H-NPS L-PS L-NPS, with dry weights of 0.56, 0.42, 1.43, and 1.21 g pot-1, respectively. Plant Cd uptake increased with increasing aqua-regia extractable metal concentrations. The NH4OAc extraction procedure was satisfactory to predict the bioavailability of Cd and Zn in rhizosphere soil in terms of shoot uptake by S. plumbizincicola with positive correlation coefficients of 0.545 (p 0.05) and 0.452 (p 0.05), respectively. The field study results show a slight decrease in water soluble and NH4OAc-extractable metals, a trend similar to that found in the pot experiment.
收录类别	SCI
WOS关键词	HYPERACCUMULATOR THLASPI-CAERULESCENS ; POLLUTED SOILS ; HEAVY-METALS ; NICKEL HYPERACCUMULATOR ; ARABIDOPSIS-HALLERI ; PHYTOREMEDIATION ; PLANTS ; ZN ; BIOAVAILABILITY ; AVAILABILITY
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000291268400002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559013
专题	南京土壤研究所
通讯作者	Wu, Longhua
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China 2.Fuyang City Agr Bur, Soils & Fertilisers Div, Hangzhou, Zhejiang, Peoples R China 3.Agri Food & Biosci Inst, Agri Environm Branch, Belfast, Antrim, North Ireland
推荐引用方式 GB/T 7714	Liu, Ling,Wu, Longhua,Li, Na,et al. Rhizosphere Concentrations of Zinc and Cadmium in a Metal Contaminated Soil After Repeated Phytoextraction By Sedum Plumbizincicola[J]. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,2011,13(8):750-764.
APA	Liu, Ling.,Wu, Longhua.,Li, Na.,Luo, Yongming.,Li, Siliang.,...&Christie, Peter.(2011).Rhizosphere Concentrations of Zinc and Cadmium in a Metal Contaminated Soil After Repeated Phytoextraction By Sedum Plumbizincicola.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,13(8),750-764.
MLA	Liu, Ling,et al."Rhizosphere Concentrations of Zinc and Cadmium in a Metal Contaminated Soil After Repeated Phytoextraction By Sedum Plumbizincicola".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 13.8(2011):750-764.

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