Size distribution of loess slides in relation to local slope height within different slope morphologies
文献类型：期刊论文
| 作者 | Qiu, Haijun1,2; Regmi, Amar Deep1; Cui, Peng1 ; Cao, Mingming2; Lee, Jingzhong2; Zhu, Xinghua3
|
| 刊名 | CATENA
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 145页码:155-163 |
| 关键词 | Landslide Size distribution Local slope height Slope morphology Loess |
| ISSN号 | 0341-8162 |
| 通讯作者 | Qiu, Haijun |
| 英文摘要 | Loess slides are widespread and dangerous gravity-induced surface processes on the Loess Plateau of north -central China. The local slope height and slope morphology have been considered as important conditioning factors for landslide susceptibility mapping. However, the quantitative relationship between landslide size and local slope height within different slope morphologies is not very clear. In this study, an inventory of 155 loess slides was developed based on detailed field investigation and remote sensing image interpretation. Statistical analysis and GIS were applied to find the quantitative relationships between the size of these loess slides and local slope height in different types of slope morphologies. The analysis shows that the relationship between the loess slides volume and area exhibits a similar trend within different types of slope morphologies. In addition, the analysis demonstrated that loess slides are more frequent on local slope height from 40 to 100 m. Stepped slopes with higher pore water pressure are prone to sliding, and approximate 34.19% of total loess slides occur in these stepped slopes. Moreover, the analysis shows that the mean loess slide area and volume rapidly increase with increasing local slope height. Furthermore, the result underlines the fact that both the local slope height and the slope morphology are two fundamental factors that control the occurrence as well as size distribution of loess slides. The loess slide size remarkably increases with increasing local slope height within every type of slope morphologies. These findings indicate that local slope height can limit the loess slide size and their spatial extent. Moreover, we quantified the correlation between the loess slide size and focal slope height using power law form, and the scaling exponents of the correlations are different within different slope morphologies. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 类目[WOS] | Geosciences, Multidisciplinary ; Soil Science ; Water Resources |
| 研究领域[WOS] | Geology ; Agriculture ; Water Resources |
| 关键词[WOS] | BRITISH-COLUMBIA ; LANDSLIDE INVENTORY ; CHINA ; SUSCEPTIBILITY ; EROSION ; FREQUENCY ; ATTRIBUTES ; MAGNITUDE ; CATCHMENT ; RAINFALL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382342100015 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17671]  |
| 专题 | 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, Sichuan, Peoples R China 2.Northwest Univ, Coll Urban & Environm Sci, Xian 710127, Peoples R China 3.Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Haijun,Regmi, Amar Deep,Cui, Peng,et al. Size distribution of loess slides in relation to local slope height within different slope morphologies[J]. CATENA,2016,145:155-163. |
| APA | Qiu, Haijun,Regmi, Amar Deep,Cui, Peng,Cao, Mingming,Lee, Jingzhong,&Zhu, Xinghua.(2016).Size distribution of loess slides in relation to local slope height within different slope morphologies.CATENA,145,155-163. |
| MLA | Qiu, Haijun,et al."Size distribution of loess slides in relation to local slope height within different slope morphologies".CATENA 145(2016):155-163. |
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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