中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Sensitivity of rainstorm-triggered shallow mass movements on gully slopes to topographical factors on the Chinese Loess Plateau

文献类型：期刊论文

作者Guo, Wen-Zhao1,2; Luo, Li3; Wang, Wen-Long1,2; Liu, Zhen-Yi3; Chen, Zhuo-Xin1; Kang, Hong-Liang1; Yang, Bo1
刊名GEOMORPHOLOGY
出版日期2019-07-15
卷号337页码:69-78
ISSN号0169-555X
关键词Shallow mass movement Erosion Gully slopes Chinese Loess Plateau Rainfall simulation experiments
DOI10.1016/j.geomorph.2019.04.006
通讯作者Wang, Wen-Long(nwafu_wwl@163.com)
英文摘要Topographical factor is one of the most important factors in understanding the formation mechanism of shallow mass movements on gully slopes on the Loess Plateau, China. However, the sensitivity of shallow mass movements on gully slopes to topography is poorly understood. Here, a series of rainfall simulation experiments was performed to quantitatively explore the influences of slope height (1.0 and 1.5 m) and gradient (60 degrees and 70 degrees) on shallow mass movements on the natural loess slopes on the Loess Plateau. Our research observed shallow mass movement processes on undisturbed slopes by using a Topography Meter and collected data that well reflected the nature of the processes. The conducted study has advantageous over traditional methods that are usually used in laboratory tests of backfilled soil. Results showed that the amount of shallow mass movement increased with increased slope height and gradient. The shallow mass movement rates (i.e., gravity erosion rates) increased by approximately 3-8 times with increased slope height from 1.0 m to 1.5 m, and increased by 148%-525% with increased slope gradient from 60 degrees to 70 degrees. The sensitivity coefficient of slope gradients for shallow mass movements was 2.1 times larger than that of slope heights for the shallow mass movements. Slope heights had the greatest effect on earthflow relative to slide and avalanche, whereas slope gradients had the greatest effect on slide. Our results provided insights into natural hazard susceptibility assessment and control erosion processes. (C) 2019 Elsevier B.V. All rights reserved.
WOS关键词LANDSLIDE OCCURRENCE ; EROSION ; CATCHMENT ; FREQUENCY ; TERRAIN ; SLIDES ; ISLAND ; MODEL ; STEEP ; GIS
资助项目National Natural Science Foundation of China[51879032] ; National Natural Science Foundation of China[41571275] ; Young Scholar B Project of the Western light of the Chinese Academy of Sciences[XAB2018B07] ; National Key RD Project[2016YFC0402504] ; Doctoral Startup Fund of Northwest Agriculture and Forestry University[Z109021806]
WOS研究方向Physical Geography ; Geology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000470048500005
资助机构National Natural Science Foundation of China ; Young Scholar B Project of the Western light of the Chinese Academy of Sciences ; National Key RD Project ; Doctoral Startup Fund of Northwest Agriculture and Forestry University
源URL[http://ir.igsnrr.ac.cn/handle/311030/59093]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Wen-Long
作者单位1.Northwest A&F Univ, Inst Water & Soil Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Dalian Univ Technol, Sch Hydraul Engn, Dalian 116024, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Wen-Zhao,Luo, Li,Wang, Wen-Long,et al. Sensitivity of rainstorm-triggered shallow mass movements on gully slopes to topographical factors on the Chinese Loess Plateau[J]. GEOMORPHOLOGY,2019,337:69-78.
APA Guo, Wen-Zhao.,Luo, Li.,Wang, Wen-Long.,Liu, Zhen-Yi.,Chen, Zhuo-Xin.,...&Yang, Bo.(2019).Sensitivity of rainstorm-triggered shallow mass movements on gully slopes to topographical factors on the Chinese Loess Plateau.GEOMORPHOLOGY,337,69-78.
MLA Guo, Wen-Zhao,et al."Sensitivity of rainstorm-triggered shallow mass movements on gully slopes to topographical factors on the Chinese Loess Plateau".GEOMORPHOLOGY 337(2019):69-78.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。