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Influence of amendments on soil arsenic fractionation and phytoavailability by Pteris vittata L.
Yan, Xiulan1; Zhang, Min2; Liao, Xiaoyong1; Tu, Shuxin2
2012-06-01
Source PublicationCHEMOSPHERE
Volume88Issue:2Pages:240-244
AbstractIncreasing 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.
SubtypeArticle
KeywordArsenic Amendment Phytoavailability Pteris Vittata L. Enzyme Activity
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedEnvironmental Sciences & Ecology
WOS KeywordCONTAMINATED SOILS ; HYPERACCUMULATOR ; ACCUMULATION ; PHYTOREMEDIATION ; FERTILIZERS ; CROPS ; CHINA ; PB
Indexed BySCI
Language英语
WOS SubjectEnvironmental Sciences
WOS IDWOS:000304505400015
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68382
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiao, Xiaoyong
Affiliation1.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
Recommended Citation
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.
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