Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L.

	Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L.
	Yan, Xiulan 1; Zhang, Min 2; Liao, Xiaoyong 1; Tu, Shuxin 2
刊名	CHEMOSPHERE
	2012-06-01
卷号	88 期号:2 页码:240-244
关键词	Arsenic Amendment Phytoavailability Pteris Vittata L. Enzyme Activity
文献子类	Article
英文摘要	Increasing availability of soil arsenic is of significance for accelerating phytoremediation efficiency of As-polluted sites. The effects of seven amendments, i.e., citrate, oxalate. EDTA, sodium polyacrylate (SPA), phosphate rock (PR), single superphosphate (SSP), and compost on fractionation and phytoavailability of soil As were investigated in lab culture experiment. The results showed that the addition of PR, SPA, EDTA or compost to soils significantly increased the concentration of NaHCO3-extractable As over a 120 d incubation period compared with the control (amendment-free) soil. Then, the four amendments were selected to add to As-contaminated soil growing Pteris vittata. It was concluded that As accumulation by the fern increased significantly under the treatments of PR and SPA by 25% and 31%, respectively. For As fractionation in soil. SPA increased Fe-As significantly by 51% and PR increased Ca-As significantly by 18%, while both the two amendments reduced occluded-As by 16% and 19%, respectively. Adding PR and SPA in soil increased the activities of urease and neutral phosphatase resulting from the improvement the fertility and physical structure of the soil, which benefits plant growth and As absorption of P. vittata. The results of the research revealed that both PR and SPA were effective amendments for improving phytoremediation of As-contaminated sites by P. vittata. (C) 2012 Elsevier Ltd. All rights reserved.
WOS关键词	CONTAMINATED SOILS ; HYPERACCUMULATOR ; ACCUMULATION ; PHYTOREMEDIATION ; FERTILIZERS ; CROPS ; CHINA ; PB
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000304505400015
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/68381]
专题	中国科学院地理科学与资源研究所
通讯作者	Liao, Xiaoyong
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China
推荐引用方式 GB/T 7714	Yan, Xiulan,Zhang, Min,Liao, Xiaoyong,et al. Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L.[J]. CHEMOSPHERE,2012,88(2):240-244.
APA	Yan, Xiulan,Zhang, Min,Liao, Xiaoyong,&Tu, Shuxin.(2012).Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L..CHEMOSPHERE,88(2),240-244.
MLA	Yan, Xiulan,et al."Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L.".CHEMOSPHERE 88.2(2012):240-244.