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. |
DOI | 10.1038/srep03506 |
收录类别 | 其他 |
语种 | 英语 |
引用统计 | |
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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