Dating of reservoir and pond deposits by the Cs-137 technique to assess sediment production in small catchments of the Hilly Sichuan basin and the Three Gorges Region, China | |
Xinbao Zhang1,2; Yongqing Qi1; Xiubin He1; Anbang Wen1; Jiexiong Fu1 | |
2006 | |
会议日期 | JUL 02-07, 2006 |
会议地点 | Dundee |
关键词 | Cs-137 hilly sichuan basin three gorges region sediment yield small catchments |
卷号 | 306 |
页码 | 348-354 |
国家 | SCOTLAND |
英文摘要 | There is a huge number of small reservoirs and ponds with quite high deposition rates in the Hilly Sichuan basin and Three Gorges Region, China. Ponds in four small catchments in Yanting and Nanchong of Sichuan Province and Kaixian of Chongqing were selected for this study. Incremental samples of sediment deposit profiles for Cs-137 dating were collected from the four ponds to estimate the volumes deposited since 1963. By analysis of the topographic characteristics and the Cs-137 depth distribution in rice fields it was concluded that no significant sediment accumulation occurs in the valley areas The direct estimates of catchment erosion infer rates of 566-1869 t km (-2) year The main factors accounting for the severe erosion of these regions are topography, soil erodibility and bedrock bedding conditions. |
源文献作者 | Rowan, JS ; Duck, RW ; Werritty, A |
产权排序 | 1 |
会议录 | Sediment Dynamics and the Hydromorphology of Fluvial Systems |
会议录出版者 | INT ASSOC HYDROLOGICAL SCIENCES |
会议录出版地 | WALLINGFORD |
语种 | 英语 |
ISSN号 | 0144-7815 |
ISBN号 | 978-1-901502-68-8 |
WOS记录号 | WOS:000248525200040 |
内容类型 | 会议论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/33519] |
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) 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 |
通讯作者 | Xinbao Zhang |
作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China; 2.State Key Laboratory of Loess and Quaternary Geoglogy, Institute of Earth Environment, Chinese Academy of Scienes, Xi'an 710075, Peoples R China |
推荐引用方式 GB/T 7714 | Xinbao Zhang,Yongqing Qi,Xiubin He,et al. Dating of reservoir and pond deposits by the Cs-137 technique to assess sediment production in small catchments of the Hilly Sichuan basin and the Three Gorges Region, China[C]. 见:. Dundee. JUL 02-07, 2006. |
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