Debris flow erosion and deposition in Jiangjia Gully, Yunnan, China
文献类型：期刊论文
| 作者 | Chen, J; He, YP; Wei, FQ
|
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2005-09-01 |
| 卷号 | 48期号:6页码:771-777 |
| 关键词 | debris flow erosion and deposition Jiangjia Gully China |
| ISSN号 | 0943-0105 |
| 通讯作者 | J. Chen |
| 合作状况 | 其它 |
| 英文摘要 | The erosion and deposition of debris flows at Jiangjia Gully in Dongchuan section of Yunnan province, southwestern China, was surveyed at 12 cross sections from 1999 to 2003. Deposition occurred in most sections because of the low debris-flow magnitude. The result was an increase in their elevations except for two sections at D17 and D19, where the channel was diverted in September 1999. As the annual sediment discharge of debris flow increased, the deposited volume decreased in the upper channel and increased in the lower channel. In each debris flow event, the erosion or deposition at the upper and the lower channel were different, but the eroded/deposited volume and the trend of erosion or deposition were similar between the neighboring sections. The average elevation change of all cross sections between consecutive surveys can reasonably represent the debris flow influence on the channel. Its relationship with the total sediment discharge between two surveys follows a three-stage pattern: when debris flow magnitude is small, deposition in the channel increases with the magnitude. When the magnitude reaches a certain level, the deposition begins to decrease and eventually erosion takes place. In three typical cross sections which had similar channel width, the debris flow showed a clear trend that the deposited volume decreased, while the eroded volume increased as the discharge of debris flow sediments increased. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| 关键词[WOS] | USA ; MOUNTAINS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233034300011 |
| 公开日期 | 2010-11-25 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/2623]  |
| 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_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Tsing Hua Univ, Dept Hydraul & Hydroelect Engn, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, J,He, YP,Wei, FQ. Debris flow erosion and deposition in Jiangjia Gully, Yunnan, China[J]. ENVIRONMENTAL GEOLOGY,2005,48(6):771-777. |
| APA | Chen, J,He, YP,&Wei, FQ.(2005).Debris flow erosion and deposition in Jiangjia Gully, Yunnan, China.ENVIRONMENTAL GEOLOGY,48(6),771-777. |
| MLA | Chen, J,et al."Debris flow erosion and deposition in Jiangjia Gully, Yunnan, China".ENVIRONMENTAL GEOLOGY 48.6(2005):771-777. |
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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