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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
River incision and fracture density controls on the style and pattern of slope failure on the northeastern Tibetan Plateau

文献类型：期刊论文

作者Wang, Xueliang2,3,4; Clague, John J.1; Qi, Shengwen2,3,4; Lan, Hengxing4,5,6; Li, Lihui2,3,4; Fang, Wenxin3; Sun, Juanjuan2,3,4; Wang, Junfei3
刊名NATURAL HAZARDS
出版日期2023-12-03
页码13
ISSN号0921-030X
关键词River incision Fracture density Equilibrium slopes, Slope failure Rock mass strength Northeastern Tibet
DOI10.1007/s11069-023-06330-1
英文摘要Hillslopes are important elements of mountain landscapes, but there is still limited understanding of how hillslopes respond to river incision and rock mass properties at the landscape scale. Topographic characteristics at Qingyang Mountain (QYM) on the tectonically active northeastern Tibetan Plateau, which we documented using field observations and geometric measurements of high-resolution DEMs, are the result of differences in river incision over timescales of 100,000 years or more. Hillslope erosion at QYM is achieved by slope failures that increase hillslope angles as rivers incise. Based on the Culmann's method, we consider the slope relief of 221-231 m to be limiting values corresponding to the observed threshold slope angle of similar to 26.3 degrees in eastern QYM. Multi-scale analysis of lidar point clouds, obtained by laser scanner, and Structure from Motion photogrammetry reveal a spatial variation of bedrock fracture density that is consistent with lateral evolution of ridge-valley topography. Areas of higher fracture density correspond to eroded gullies, and areas of lower fracture density are found in ridges separating these gullies. Our results suggest that difference in tectonic fracturing of the rock mass dominantly drives lateral erosion of slopes in the study area.
WOS关键词THRESHOLD HILLSLOPES ; TOPOGRAPHIC ANALYSIS ; SHORT COMMUNICATION ; FLUVIAL INCISION ; TECTONIC CONTROL ; EROSION RATES ; GROWTH ; SIZE
资助项目China Natural Science Foundation ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; [42172304] ; [42041006]
WOS研究方向Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种英语
出版者SPRINGER
WOS记录号WOS:001113095600002
资助机构China Natural Science Foundation ; China Natural Science Foundation ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Natural Science Foundation ; China Natural Science Foundation ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Natural Science Foundation ; China Natural Science Foundation ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; China Natural Science Foundation ; China Natural Science Foundation ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)
源URL[http://ir.iggcas.ac.cn/handle/132A11/111139]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Wang, Xueliang
作者单位1.Simon Fraser Univ, Dept Earth Sci, Burnaby, BC V5A 1S6, Canada
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst L, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Xueliang,Clague, John J.,Qi, Shengwen,et al. River incision and fracture density controls on the style and pattern of slope failure on the northeastern Tibetan Plateau[J]. NATURAL HAZARDS,2023:13.
APA Wang, Xueliang.,Clague, John J..,Qi, Shengwen.,Lan, Hengxing.,Li, Lihui.,...&Wang, Junfei.(2023).River incision and fracture density controls on the style and pattern of slope failure on the northeastern Tibetan Plateau.NATURAL HAZARDS,13.
MLA Wang, Xueliang,et al."River incision and fracture density controls on the style and pattern of slope failure on the northeastern Tibetan Plateau".NATURAL HAZARDS (2023):13.

入库方式： OAI收割

来源：地质与地球物理研究所

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