Topographic controls on the initiation and transport of landslide-triggered debris flows
文献类型：期刊论文
| 作者 | Guo, Jian1,3; Wang, Yu2; Li, Yao1 |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2025-10-01 |
| 卷号 | 486页码:109901 |
| 关键词 | Rainfall-induced landslides Landslide-debris flow transformation Topographic control Numerical simulation Extreme rainfall |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2025.109901 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The transformation of landslides into debris flows is influenced by topography, which governs their initiation, mobility, and connectivity. However, the specific geomorphic controls on this process remain poorly understood. In this study, the influence of topography on landslide-debris flow transformation in Xita village, China, is examined using field investigations, numerical simulations, and remote sensing analysis. The findings reveal that topography dictates the spatial distribution of shallow landslides, with most landslides occurring near watershed divides due to terrain-driven variations in material and water availability. Furthermore, two distinct transformation mechanisms, i.e., gravity driven and hydraulically driven mechanisms, are shaped by topographic conditions, influencing initiation pathways and mobility. Numerical simulations highlight that the confluence angle and bed friction significantly affect landslide connectivity and transformation efficiency. By quantifying key geomorphic indices, such as the slope, confluence angle, and material connectivity, this study provides new insights into the role of terrain in hazard evolution. These findings offer a scientific basis for improving models of spatial prediction and hazard assessments of rainfall-induced landslides and their triggered debris flows in mountainous regions. |
| URL标识 | 查看原文 |
| WOS关键词 | ROCKSLIDE ; MODEL |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001528001500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215353]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Yu |
| 作者单位 | 1.Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; 2.Inst Disaster Prevent, Sch Disaster Prevent & Reduct Engn, Sanhe 065201, Hebei, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Guo, Jian,Wang, Yu,Li, Yao. Topographic controls on the initiation and transport of landslide-triggered debris flows[J]. GEOMORPHOLOGY,2025,486:109901. |
| APA | Guo, Jian,Wang, Yu,&Li, Yao.(2025).Topographic controls on the initiation and transport of landslide-triggered debris flows.GEOMORPHOLOGY,486,109901. |
| MLA | Guo, Jian,et al."Topographic controls on the initiation and transport of landslide-triggered debris flows".GEOMORPHOLOGY 486(2025):109901. |
入库方式： OAI收割
来源：地理科学与资源研究所
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