Connectivity of earthquake-triggered landslides with the fluvial network: Implications for landslide sediment transport after the 2008 Wenchuan earthquake
文献类型：期刊论文
| 作者 | Densmore, Alexander L.1,2; Hilton, Robert G.1,2; West, A. Joshua3; Li, Gen3; Hammond, Douglas E.3; Jin, Zhangdong4; Zhang, Fei4; Wang, Jin4 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 121期号:4页码:703-724 |
| DOI | 10.1002/2015JF003718 |
| 文献子类 | Article |
| 英文摘要 | Evaluating the influence of earthquakes on erosion, landscape evolution, and sediment-related hazards requires understanding fluvial transport of material liberated in earthquake-triggered landslides. The location of landslides relative to river channels is expected to play an important role in postearthquake sediment dynamics. In this study, we assess the position of landslides triggered by the M-w 7.9 Wenchuan earthquake, aiming to understand the relationship between landslides and the fluvial network of the steep Longmen Shan mountain range. Combining a landslide inventory map and geomorphic analysis, we quantify landslide-channel connectivity in terms of the number of landslides, landslide area, and landslide volume estimated from scaling relationships. We observe a strong spatial variability in landslide-channel connectivity, with volumetric connectivity (xi) ranging from similar to 20% to similar to 90% for different catchments. This variability is linked to topographic effects that set local channel densities, seismic effects (including seismogenic faulting) that regulate landslide size, and substrate effects that may influence both channelization and landslide size. Altogether, we estimate that the volume of landslides connected to channels comprises 43 + 9/-7% of the total coseismic landslide volume. Following the Wenchuan earthquake, fine-grained ( |
| WOS关键词 | TEMPERATE MONTANE FOREST ; MOUNTAIN DRAINAGE BASINS ; THRESHOLD HILLSLOPES ; TIBETAN PLATEAU ; GROUND MOTION ; EROSION ; TOPOGRAPHY ; EVOLUTION ; DENSITY ; TAIWAN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000382579600004 |
| 源URL | [http://ir.ieecas.cn/handle/361006/5677]  |
| 专题 | 地球环境研究所_加速器质谱中心 |
| 作者单位 | 1.Univ Durham, Dept Geog, Durham, England 2.Univ Durham, Inst Hazard Risk & Resilience, Durham, England 3.Univ So Calif, Dept Earth Sci, Los Angeles, CA 90007 USA 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Densmore, Alexander L.,Hilton, Robert G.,West, A. Joshua,et al. Connectivity of earthquake-triggered landslides with the fluvial network: Implications for landslide sediment transport after the 2008 Wenchuan earthquake[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2016,121(4):703-724. |
| APA | Densmore, Alexander L..,Hilton, Robert G..,West, A. Joshua.,Li, Gen.,Hammond, Douglas E..,...&Wang, Jin.(2016).Connectivity of earthquake-triggered landslides with the fluvial network: Implications for landslide sediment transport after the 2008 Wenchuan earthquake.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,121(4),703-724. |
| MLA | Densmore, Alexander L.,et al."Connectivity of earthquake-triggered landslides with the fluvial network: Implications for landslide sediment transport after the 2008 Wenchuan earthquake".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 121.4(2016):703-724. |
入库方式： OAI收割
来源：地球环境研究所
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