YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Effects of water management on arsenic and cadmium speciation and accumulation in an upland rice cultivar
Hu, Pengjie1; Ouyang, Younan2; Wu, Longhua1; Shen, Libo1; Luo, Yongming3; Christie, Peter1; Wu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. pjhu@issas.ac.cn; lhwu@issas.ac.cn
2015
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN1001-0742
Volume27Pages:225-231
Contribution Rank[Hu, Pengjie; Wu, Longhua; Shen, Libo; Christie, Peter] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Ouyang, Younan] Chinese Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
AbstractPot and field experiments were conducted to investigate the effects of water regimes on the speciation and accumulation of arsenic (As) and cadmium (Cd) in Brazilian upland rice growing in soils polluted with both As and Cd. In the pot experiment constant and intermittent flooding treatments gave 3-16 times higher As concentrations in soil solution than did aerobic conditions but Cd showed the opposite trend. Compared to arsenate, there were more marked changes in the arsenite concentrations in the soil solution as water management shifted, and therefore arsenite concentrations dominated the As speciation and bioavailability in the soil. In the field experiment As concentrations in the rice grains increased from 0.14 to 0.21 mg/kg while Cd concentrations decreased from 0.21 to 0.02 mg/kg with increasing irrigation ranging from aerobic to constantly flooding conditions. Among the various water regimes the conventional irrigation treatment produced the highest rice grain yield of 6.29 tons/ha. The As speciation analysis reveals that the accumulation of dimethylarsinic acid (from 11.3% to 61.7%) made a greater contribution to the increase in total As in brown rice in the intermittent and constant flooding treatments compared to the intermittent-aerobic treatment. Thus, water management exerted opposite effects on Cd and As speciation and bioavailability in the soil and consequently on their accumulation in the upland rice. Special care is required when irrigation regime methods are employed to mitigate the accumulation of metal(loid)s in the grain of rice grown in soils polluted with both As and Cd. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.; Pot and field experiments were conducted to investigate the effects of water regimes on the speciation and accumulation of arsenic (As) and cadmium (Cd) in Brazilian upland rice growing in soils polluted with both As and Cd. In the pot experiment constant and intermittent flooding treatments gave 3-16 times higher As concentrations in soil solution than did aerobic conditions but Cd showed the opposite trend. Compared to arsenate, there were more marked changes in the arsenite concentrations in the soil solution as water management shifted, and therefore arsenite concentrations dominated the As speciation and bioavailability in the soil. In the field experiment As concentrations in the rice grains increased from 0.14 to 0.21 mg/kg while Cd concentrations decreased from 0.21 to 0.02 mg/kg with increasing irrigation ranging from aerobic to constantly flooding conditions. Among the various water regimes the conventional irrigation treatment produced the highest rice grain yield of 6.29 tons/ha. The As speciation analysis reveals that the accumulation of dimethylarsinic acid (from 11.3% to 61.7%) made a greater contribution to the increase in total As in brown rice in the intermittent and constant flooding treatments compared to the intermittent-aerobic treatment. Thus, water management exerted opposite effects on Cd and As speciation and bioavailability in the soil and consequently on their accumulation in the upland rice. Special care is required when irrigation regime methods are employed to mitigate the accumulation of metal(loid)s in the grain of rice grown in soils polluted with both As and Cd. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
KeywordArsenic Cadmium Dimethylarsinic Acid (Dma) Rice Speciation Water Management
Department中科院海岸带环境过程与生态修复重点实验室
Subject AreaEnvironmental Sciences
DOI10.1016/j.jes.2014.05.048
Funding OrganizationEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordORYZA-SATIVA L. ; SOIL ; CHINA ; PRODUCTIVITY ; EXPOSURE ; FIELDS ; PLANTS ; HUNAN ; LEAD ; IRON
SubtypeArticle
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000348825400026
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8675
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorWu, LH (reprint author), Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China. pjhu@issas.ac.cn; lhwu@issas.ac.cn
Affiliation1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
Recommended Citation
GB/T 7714
Hu, Pengjie,Ouyang, Younan,Wu, Longhua,et al. Effects of water management on arsenic and cadmium speciation and accumulation in an upland rice cultivar[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2015,27:225-231.
APA Hu, Pengjie.,Ouyang, Younan.,Wu, Longhua.,Shen, Libo.,Luo, Yongming.,...&lhwu@issas.ac.cn.(2015).Effects of water management on arsenic and cadmium speciation and accumulation in an upland rice cultivar.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,27,225-231.
MLA Hu, Pengjie,et al."Effects of water management on arsenic and cadmium speciation and accumulation in an upland rice cultivar".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 27(2015):225-231.
Files in This Item: Download All
File Name/Size DocType Version Access License
Effects of water man(316KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Hu, Pengjie]'s Articles
[Ouyang, Younan]'s Articles
[Wu, Longhua]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu, Pengjie]'s Articles
[Ouyang, Younan]'s Articles
[Wu, Longhua]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu, Pengjie]'s Articles
[Ouyang, Younan]'s Articles
[Wu, Longhua]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of water management on arsenic and cadmium speciation and accumulation in an upland rice cultivar.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.