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Plutonium in Soils from Northeast China and Its Potential Application for Evaluation of Soil Erosion
Xu, YH (Xu, Yihong)[ 1,2 ]; Qiao, JX (Qiao, Jixin)[ 2 ]; Hou, XL (Hou, Xiaolin)[ 2,3 ]; Pan, SM (Pan, Shaoming)[ 1 ]
2013-12-16
发表期刊SCIENTIFIC REPORTS
卷号3页码:3506
文章类型期刊论文
摘要

Surface and soil core samples from northeast China were analyzed for Pu isotopes. The measured Pu-240/Pu-239 atomic ratios and Pu239 + 240/Cs-137 activity ratios revealed that the global fallout is the dominant source of Pu and Cs-137 at these sites. Migration behavior of Pu varying with land type and human activities resulted in different distribution of Pu in surface soils. A sub-surface maximum followed by exponential decline of Pu239 + 240 concentrations was observed in an undisturbed soil core, with a total Pu239 + 240 inventory of 86.9 Bq/m(2) and more than 85% accumulated in 0 similar to 20 cm layers. While only half inventory of Pu was obtained in another soil core and no sub-surface maximum value occurred. Erosion of topsoil in the site should be the most possible reason for the significantly lower Pu inventory, which is also supported by the reported Cs-137 profiles. These results demonstrated that Pu could be applied as an ideal substitute of Cs-137 for soil erosion study in the future.

DOI10.1038/srep03506
收录类别其他
语种英语
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被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10030
专题加速器质谱中心
通讯作者Hou, XL (Hou, Xiaolin)[ 2,3 ]
作者单位1.The Key Laboratory of Coastal and Island Development of Ministry of Education, Nanjing University, Nanjing 210093, China;
2.Center for Nuclear Technologies, Technical University of Denmark, Risø Campus, Roskilde 4000, Denmark;
3.Xi’an AMS Center,SKLLQG, Institute of Earth Environment, CAS, Xi’an 710075, China
推荐引用方式
GB/T 7714
Xu, YH ,Qiao, JX ,Hou, XL ,et al. Plutonium in Soils from Northeast China and Its Potential Application for Evaluation of Soil Erosion[J]. SCIENTIFIC REPORTS,2013,3:3506.
APA Xu, YH ,Qiao, JX ,Hou, XL ,&Pan, SM .(2013).Plutonium in Soils from Northeast China and Its Potential Application for Evaluation of Soil Erosion.SCIENTIFIC REPORTS,3,3506.
MLA Xu, YH ,et al."Plutonium in Soils from Northeast China and Its Potential Application for Evaluation of Soil Erosion".SCIENTIFIC REPORTS 3(2013):3506.
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