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
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