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	Availability and toxicity of exogenous lanthanum in a haplic acrisols
	Chu, HY; Zhu, JG; Xie, ZB; Zeng, Q; Li, ZG; Cao, ZH
刊名	GEODERMA
	2003-07-01
卷号	115期号:1-2页码:121-128
关键词	soil lanthanum fertilizer availability toxicity
ISSN号	0016-7061
DOI	10.1016/S0016-7061(03)00081-8
通讯作者	Chu, HY()
英文摘要	The availability and toxicity of exogenous lanthanum. in a haplic acrisols were studied through laboratory incubation and pot culture experiments. The soil was collected from the Chinese Academy of Sciences' Red Soil Ecological Experimental Station, located in Jiangxi Province, southern China and sampled from croplands which have been used to grow rice and rape in rotation for 3 years. The available La in soil was extracted by 0.05 mol l(-1) HCl and determined by a double focusing type of inductively coupled plasma-mass spectrometry (ICP-MS), and toxicity of La was determined by the evaluation of relative luminosity of Photobacterium phosphoreum T-3. The exogenous La was highly available in soil, and the average available La accounted for 56.6% of exogenous La after 1 week of incubation. However, the availability of exogenous La in soil had a tendency to decrease with the prolonged incubation time. La in aqueous solution was biologically toxic, and there was a significant negative correlation (p < 0.01) between the relative luminosity of R phosphoreum T-3 and the concentration of La in water solution. La was biologically toxic in soil, and a significant negative correlation (p < 0.01) was observed between the relative luminosity of R phosphoreum T-3 and exogenous La, indicating that the excessive exogenous La in soil may produce harmful effects to soil microbial community. (C) 2003 Elsevier Science B.V. All rights reserved.
收录类别	SCI
WOS关键词	RARE-EARTH ELEMENTS
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000183271700012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2559275
专题	南京土壤研究所
通讯作者	Chu, HY
作者单位	Chinese Acad Sci, Inst Soil Sci, Lab Mat Cycling Pedosphere, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Chu, HY,Zhu, JG,Xie, ZB,et al. Availability and toxicity of exogenous lanthanum in a haplic acrisols[J]. GEODERMA,2003,115(1-2):121-128.
APA	Chu, HY,Zhu, JG,Xie, ZB,Zeng, Q,Li, ZG,&Cao, ZH.(2003).Availability and toxicity of exogenous lanthanum in a haplic acrisols.GEODERMA,115(1-2),121-128.
MLA	Chu, HY,et al."Availability and toxicity of exogenous lanthanum in a haplic acrisols".GEODERMA 115.1-2(2003):121-128.

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