A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNO3 extraction methods for prediction of bioavailability of metals in soil to barley

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNO3 extraction methods for prediction of bioavailability of metals in soil to barley
	Feng, MH; Shan, XQ; Zhang, SZ; Wen, B
刊名	ENVIRONMENTAL POLLUTION
	2005
卷号	137 期号:2 页码:231-240
关键词	bioavailability rhizosphere-based method moist rhizosphere soil low-molecular-weight organic acids heavy metals
英文摘要	A rhizosphere-based method was compared with DTPA. EDTA, CaCl2, and NaNO3 extraction methods for the evaluation of bioavailability of heavy metals in soil to barley. The extractable amounts of Cr, Cu, Zn and Cd analyzed by the rhizosphere-based method correlated significantly with the metal content of barley roots. The extractable metals identified by DTPA, EDTA, CaCl2 and NaNO3 methods exhibited relatively poor or no correlation with the metal content of barley roots. The stepwise multiple regression equation of the rhizosphere-based method was the simplest one, as no soil properties needed to be entered, whereas the equations for the DTPA, EDTA, CaCl2 and NaNO3 extraction methods always require those variables. The most distinct feature of the rhizosphere-based method was that the proposed method was suitable for acidic, neutral and near alkaline soils. In contrast, the other extraction methods were restricted to soil types. In summary, the rhizosphere-based method is the most robust approach for evaluation of bioavailability of metals in soil to barley. (C) 2005 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences & Ecology
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000230444900006
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/23131]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Feng, MH,Shan, XQ,Zhang, SZ,et al. A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNO3 extraction methods for prediction of bioavailability of metals in soil to barley[J]. ENVIRONMENTAL POLLUTION,2005,137(2):231-240.
APA	Feng, MH,Shan, XQ,Zhang, SZ,&Wen, B.(2005).A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNO3 extraction methods for prediction of bioavailability of metals in soil to barley.ENVIRONMENTAL POLLUTION,137(2),231-240.
MLA	Feng, MH,et al."A comparison of the rhizosphere-based method with DTPA, EDTA, CaCl2, and NaNO3 extraction methods for prediction of bioavailability of metals in soil to barley".ENVIRONMENTAL POLLUTION 137.2(2005):231-240.