中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Influence of plant activity and phosphates on thorium bioavailability in soils from Baotou area, Inner Mongolia

文献类型:期刊论文

作者Guo PR ; Jia XY ; Duan TC ; Xu JW ; Chen HT
刊名journal of environmental radioactivity
出版日期2010
卷号101期号:9页码:767-772
关键词RHIZOSPHERE-BASED METHOD HEAVY-METALS CONTAMINATED SOILS EXTRACTION METHODS TRACE-ELEMENTS GROWTH COPPER VEGETABLES SPECIATION SEDIMENTS
ISSN号0265-931x
通讯作者chen ht
中文摘要harm of thorium to living organisms is governed by its bioavailability. thorium bioavailability in the soil-plant system of baotou rare earth industrial area was studied using pot experiments of wheat and single extraction methods. the effects of wheat growth stage and phosphate on thorium bioavailability were also investigated. based on extractabilities of various extraction methods (cacl2, nh4no3, edta, hoac) and correlation analysis of thorium uptake by wheat plant and extractable thorium, a mixture of 0.02 m edta 0.5 m nh4oac (ph 4.6) was found suitable for evaluation of thorium bioavailability in baotou soil, which could be predicted quantitatively by multiple regression models. because of differences of wheat root activities, thorium bioavailability in rhizosphere soil was higher than in bulk soil at tillering stage, but the reverse occurred at jointing stage. phosphate addition induced the mineralization of soluble thorium by forming stable thorium phosphate compounds, and reduced thorium bioavailability in soil. (c) 2010 elsevier ltd. all rights reserved.
收录类别SCI收录期刊论文
语种英语
WOS记录号WOS:000280470800015
公开日期2012-04-26
源URL[http://ir.ciac.jl.cn/handle/322003/43571]  
专题长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式
GB/T 7714
Guo PR,Jia XY,Duan TC,et al. Influence of plant activity and phosphates on thorium bioavailability in soils from Baotou area, Inner Mongolia[J]. journal of environmental radioactivity,2010,101(9):767-772.
APA Guo PR,Jia XY,Duan TC,Xu JW,&Chen HT.(2010).Influence of plant activity and phosphates on thorium bioavailability in soils from Baotou area, Inner Mongolia.journal of environmental radioactivity,101(9),767-772.
MLA Guo PR,et al."Influence of plant activity and phosphates on thorium bioavailability in soils from Baotou area, Inner Mongolia".journal of environmental radioactivity 101.9(2010):767-772.

入库方式: OAI收割

来源:长春应用化学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。