Rare earth elements tracing the soil erosion processes on slope surface under natural rainfall
文献类型：期刊论文
| 作者 | Zhu, Mingyong1,3; Tan, Shuduan2; Dang, Haishan1; Zhang, Quanfa1 |
| 刊名 | JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 102期号:12页码:1078-1084 |
| 关键词 | Soil erosion Rare earth element (REE) Natural rainfall Slope surface |
| ISSN号 | 0265-931X |
| DOI | 10.1016/j.jenvrad.2011.07.007 |
| 英文摘要 | A field experiment using rare earth elements (REEs) as tracers was conducted to investigate soil erosion processes on slope surfaces during rainfall events. A plot of 10 m x 2 m x 0.16 m with a gradient of 20 degrees (36.4%) was established and the plot was divided into two layers and four segments. Various REE tracers were applied to the different layers and segments to determine sediment dynamics under natural rainfall. Results indicated that sheet erosion accounted for more than 90% of total erosion when the rainfall amount and density was not large enough to generate concentrated flows. Sediment source changed in different sections on the slope surface, and the primary sediment source area tended to move upslope as erosion progressed. In rill erosion, sediment discharge mainly originated from the toe-slope and moved upwards as erosion intensified. The results obtained from this study suggest that multi-REE tracer technique is valuable in understanding the erosion processes and determining sediment sources. (C) 2011 Elsevier Ltd. All rights reserved. |
| 资助项目 | National Key Technology R&D Program of China[2006BAC10B020] ; National Key Technology R&D Program of China[2008BAD98B08] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000296483500003 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/832]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Zhang, Quanfa |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 2.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Mingyong,Tan, Shuduan,Dang, Haishan,et al. Rare earth elements tracing the soil erosion processes on slope surface under natural rainfall[J]. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,2011,102(12):1078-1084. |
| APA | Zhu, Mingyong,Tan, Shuduan,Dang, Haishan,&Zhang, Quanfa.(2011).Rare earth elements tracing the soil erosion processes on slope surface under natural rainfall.JOURNAL OF ENVIRONMENTAL RADIOACTIVITY,102(12),1078-1084. |
| MLA | Zhu, Mingyong,et al."Rare earth elements tracing the soil erosion processes on slope surface under natural rainfall".JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 102.12(2011):1078-1084. |
入库方式： OAI收割
来源：武汉植物园
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