Sediment source identification by using137Cs and210Pb radionuclides in a small catchment of the Hilly Sichuan Basin, China
文献类型：期刊论文
| 作者 | Xinbao Zhang（张信宝） ; Xiubin He（贺秀斌） ; Anbang Wen（文安邦） ; D. E. Walling ; Mingyi Feng（冯明义） ; Xiang Zou（邹翔） |
| 刊名 | Chinese Science Bulletin
 |
| 出版日期 | 2004 |
| 卷号 | 49期号:18页码:1953-1957 |
| 关键词 | sediment source |
| 合作状况 | 国际 |
| 英文摘要 | Double radionuclide tracers of137Cs and210Pb were used to investigate sediment sources in the Wujia Gully, a small catchment in the Hilly Sichuam Basin in 2002. Average137Cs and210Pb concentrations in the source soils of the steep forest slopes, gentle cultivated terraces and bare slopes were 7.15 ±0.40 and 162.01 ±3.86 Bq·kg-1, 4.01 ±0.31 and 70.96 ±2.65 Bq · kg-1, and 0 and 15.12 ±1.22 Bq · kg-1, respectively, while those concentrations in the recently deposited sediments in the reservoir were 3.06 ±0.23 and 72.66 ±1.61 Bq · kg-1, respectively. By using the mixing model, the relative sediment contributions from steep forest slopes, gentle cultivated terraces and bare slopes (including channel banks) were estimated to be 18%, 46% and 36%, respectively. Cultivated terraces and bare slopes (including channel banks) were the first and the second important sediment sources in catchment. Specific sediment yield in the catchment was 642 t · km-2 · a-1 from the deposited sediment volume in the reservoir since 1956. Soil erosion rates for the forest slopes and cultivated terraces, which accounted for 2/3 and 1/3 of the drainage area in the catchment, were estimated to be 173 and 886 t · km-2 · a-1, respectively. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2662]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 推荐引用方式 GB/T 7714 | Xinbao Zhang,Xiubin He,Anbang Wen,et al. Sediment source identification by using137Cs and210Pb radionuclides in a small catchment of the Hilly Sichuan Basin, China[J]. Chinese Science Bulletin,2004,49(18):1953-1957. |
| APA | Xinbao Zhang,Xiubin He,Anbang Wen,D. E. Walling,Mingyi Feng,&Xiang Zou.(2004).Sediment source identification by using137Cs and210Pb radionuclides in a small catchment of the Hilly Sichuan Basin, China.Chinese Science Bulletin,49(18),1953-1957. |
| MLA | Xinbao Zhang,et al."Sediment source identification by using137Cs and210Pb radionuclides in a small catchment of the Hilly Sichuan Basin, China".Chinese Science Bulletin 49.18(2004):1953-1957. |
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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