Temporal variation of Be-7 fallout and its inventory in purple soil in the Three Gorges Reservoir region, China
文献类型：期刊论文
| 作者 | Shi, Zhonglin1,2 ; Wen, Anbang1; Yan, Dongchun1; Zhang, Xinbao1; Ju, Li1,2
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| 刊名 | JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
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| 出版日期 | 2011-06-01 |
| 卷号 | 288期号:3页码:671-676 |
| 关键词 | Be-7 Deposition flux Purple soil Erosion Three Gorges Reservoir region China |
| ISSN号 | 0236-5731 |
| 通讯作者 | Wen, AB （文安邦） |
| 英文摘要 | The deposition flux of Be-7 was measured in the range from 0.4 to 5.2 Bq m(-2) d(-1), with a mean value of 2.6 Bq m(-2) d(-1), during the period of May 31, 2009-May 31, 2010 in the Three Gorges Reservoir region, China. The low annual deposition flux of Be-7 was probably due to the adsorption of Be-7 within high altitude clouds and the Qinling-Daba Mountain's barrier and blocking effects on the cold air during winter months. There was a seasonal trend for Be-7 deposition, showing a spring maximum and winter minimum, which may be attributed to the seasonal folding of tropopause in spring and little rainfall amount in winter. A strong positive correlation (R (2) = 0.67) between Be-7 deposition flux and rainfall was observed. The depth distribution of Be-7 in undisturbed purple soil profiles suggested that the nuclide was mainly distributed within the top 20.0 kg m(-2) (similar to 1.5 cm) of soil in depth and the maximum concentration occurred at a depth of 3.0 kg m(-2) (similar to 0.2 cm), then the concentration declined quickly and exponentially with depth. The seasonal inventories of Be-7 in soils were consistent with the values calculated from the atmospheric fluxes, which shows a great potential for using Be-7 as a tracer to assess soil redistribution in purple soil areas of China. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Analytical ; Chemistry, Inorganic & Nuclear ; Nuclear Science & Technology |
| 研究领域[WOS] | Chemistry ; Nuclear Science & Technology |
| 关键词[WOS] | SEASONAL-VARIATION ; CENTRAL GUIZHOU ; EROSION ; PB-210 ; BERYLLIUM-7 ; DEPOSITION ; FLUXES ; CS-137 ; RADIONUCLIDES ; AIR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000290040000004 |
| 公开日期 | 2013-06-25 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5510]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 科技与合作处 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Zhonglin,Wen, Anbang,Yan, Dongchun,et al. Temporal variation of Be-7 fallout and its inventory in purple soil in the Three Gorges Reservoir region, China[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,2011,288(3):671-676. |
| APA | Shi, Zhonglin,Wen, Anbang,Yan, Dongchun,Zhang, Xinbao,&Ju, Li.(2011).Temporal variation of Be-7 fallout and its inventory in purple soil in the Three Gorges Reservoir region, China.JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY,288(3),671-676. |
| MLA | Shi, Zhonglin,et al."Temporal variation of Be-7 fallout and its inventory in purple soil in the Three Gorges Reservoir region, China".JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 288.3(2011):671-676. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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