| Erodibility of soil at the gully head in Yuanmou dry-hot valley, China | |
| Language | 英语 |
Nan, Ling1,3; Chena, An-Qiang1,3; Liu, Gang-Cai1,2
| |
| 2011 | |
| Source Publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Author of Source | SPIE |
| Volume | 7752 |
| Pages | 77520Y |
| meeting | PIAGENG 2010 - Photonics and Imaging for Agricultural Engineering |
| Conference Date | 2010-12 |
| Conference Place | Qingdao |
| Country | China |
| Contribution Rank | 1 |
| Abstract | In the recent years, gully erosion attracted increasing attention from scientists. However, there were few studies on the soil erodibility/anti- erodibilty for the gully erosion. Based on the principle ofgeotechnical slaking test, a new set of test apparatus had been designed and applied on the study oferodibility of soil at the gully head. In this experiment, 6 typical gully heads had been chosen. Soil at thedifferent depth of each gully head had been sampled by the foil sampler and tested the slaking rate ofthem. Moreover, shear strength of soil at different depth of each gully head had been tested in situ. Theresults showed that gullies developed on the stratified soil or homogeneous soil have different morphological characteristics. At the sharp gully head, the erodibility of underlying soil was lower thanthe overlying soil's. Contrarily, at gradual gully head, the erodibility of underlying soil was not lower thanthe overlying soil's. Moreover, slaking rate of most gullies' soil in the study area is an inverse proportion tothe shear stress. Thus, slaking rate and in-situ shear stress, any of them can be the indicator of theerodibility of soil in the study region. But shear stress is easier to measure in situ. |
| Keyword | gully erodibility slaking shearstrength |
| DOI | 10.1117/12.887704 |
| ISBN | 9780819482457 |
| ISSN | 0277786X |
| Indexed By | EI |
| Accession number | Accession number:;20111213762022 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/25940 |
| Collection | 山地灾害与地表过程重点实验室 |
| Affiliation | 1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 2.Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences, Chengdu, China; 3.Graduate University of Chinese Academy of Sciences, Beijing, 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 | Nan, Ling,Chena, An-Qiang,Liu, Gang-Cai. Erodibility of soil at the gully head in Yuanmou dry-hot valley, China[C]//SPIE,2011:77520Y. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Erodibility of soil （490KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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