The erosion processes of gully beds and its influences on headcut retreat based on an in-situ scouring experiment | |
Language | 英语 |
Yifan Dong![]() ![]() ![]() | |
Corresponding Author | Yifan Dong |
2017 | |
Source Publication | 1st World Conference on Soil and Water Conservation under Global Change-CONSOWA |
Pages | 409-412 |
Conference Date | 2017-6 |
Conference Place | Lleida, Spain |
Funding Organization | University of Lleida |
Abstract |
Headcut retreat is one of the important processes of gully erosion, which leads to intensive sediment yield and threaten the soil quality of a region (Oostwoud Wijdenes et al., 2000; Vandekerckhove et al., 2001; 2003). The waterfall at the headcuts dissipated flow kinetic energy to gully beds and formed plunge pools right under the headcuts (Stein et al., 1993). The development of plunge pools caused rill headcut migration to upstream drainage area (Bennett et al., 1999), and the shape factors were applied to predict the linear headcut retreat rates of rills (Alonso et al., 2002). Flores-Cervantes et al (2006) extended the model to hillslope gully heads in the model channel-hillslope integrated
landscape development (CHILD). Campo-Bescos et al (2013) calibrated the model in northeast Spain and found the differences between field observation and model simulation were only 0.05 m3 year-1. While the plunge pools were not typical in some gullies in fields, and how to predict the headcut erosion rates without shape factors of plunge pools needs further study. The aim of this study is to detect the relationships between headcut retreat rate and flow hydraulics and erosion processes of gully beds, and find out the key influencing factors on gully head eroison based on an in-situ scouring experiment on 5 simulated gully heads in Dry-hot valley in southwest China. |
Keyword | Gully Headcut Retreat Hydraulics |
ISBN | 978-84-697-2909-0 |
Indexed By | 其他 |
Document Type | 会议论文 |
Identifier | http://ir.imde.ac.cn/handle/131551/20678 |
Collection | 山地灾害与地表过程重点实验室 |
Affiliation | Key Laboratory of Mountain Hazards & Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041, Chengdu, China |
First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
Recommended Citation GB/T 7714 | Yifan Dong,Donghong Xiong,Zhengan Su. The erosion processes of gully beds and its influences on headcut retreat based on an in-situ scouring experiment[C],2017:409-412. |
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CONSOWA_FINAL-Dong.p(208KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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