中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Transient geomorphic response after landslide-induced river damming in the eastern margin of the Tibetan plateau

文献类型:期刊论文

作者Zhou, Yanlian3,5; Liu, Weiming3,4,5; Yanites, Brian J.2; Zhou, Liqin3,5; Li, Xuemei1; Yang, Zewen3,5
刊名CATENA
出版日期2024-11-01
卷号246页码:14
关键词Tributary Min and Dadu Rivers Channel steepness Hillslope morphology metrics
ISSN号0341-8162
DOI10.1016/j.catena.2024.108382
英文摘要

It is widely acknowledged that landslide-induced river damming plays a vital role in influencing landscape evolution as it drives river transience. However, how this transient state is transmitted and evolves is still being determined. Here, we focus on the Min and Dadu Rivers in the eastern margin of the Tibetan Plateau, an area abundant with paleolandslide dams, these dams have been used to quantify the transient geomorphic response after damming. We first identified 226 paleolandslide dams through remote sensing and field verification, and calculated the parameters of each paleolandslide dam. Second, we investigated the river longitudinal profile channel steepness index (ksn) and knickpoints along the trunk of both rivers. Third, we extracted all sub-basins smaller than 1000 km2 from both rivers and calculated each sub-basins channel steepness index and hillslope morphology metrics (local relief and slope). The results show that: (1) The landslide dam aligns spatially with the elevated sections of the river's longitudinal profile and areas exhibiting high ksn values, and coincides with specific river knickpoints. (2) Approximately 61 % of the trunk dams show higher ksn values, local relief, and slope values in the surrounding sub-basins, accompanied by peak values. Places with these patterns in our study area sometimes had as many as six landslide-induced river damming events. (3) The 4 typical dams showed a trend of decreasing ksn and hillslope morphology in tributaries upstream and downstream of the dam, and the metric values of the sub-basin are negatively correlated with the distance from the trunk dam. Our findings highlight that the trunk landslide-induced river damming event leads to disturbances in the channel-hillslope system of the adjacent tributaries. Such an approach will provide the potential to examine the transmission of geomorphic responses to landslide-induced river damming and help us better understand the geomorphological evolution after river damming.

WOS关键词MENDOCINO TRIPLE JUNCTION ; WENCHUAN EARTHQUAKE ; DAMMED LAKE ; SOUTHERN ALPS ; MIN RIVER ; DAMS ; EROSION ; CHANNEL ; FAILURE ; REGION
资助项目Second Tibetan Plateau Scientific Expedition and Research (STEP)[2019QZKK0903] ; Na-tional Natural Science Foundation of China[41941017] ; Science and Technology Research Program of Institute of Mountain Hazards and Environment, Chinese Academy of Sciences[IMHE-ZDRW-03] ; National Natural Science Foundation of China[42071017]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:001317919300001
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research (STEP) ; Na-tional Natural Science Foundation of China ; Science and Technology Research Program of Institute of Mountain Hazards and Environment, Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.imde.ac.cn/handle/131551/58420]  
专题中国科学院水利部成都山地灾害与环境研究所
通讯作者Liu, Weiming
作者单位1.Neijiang Normal Univ, Tuojiang River Basin High Qual Dev Res Ctr, Neijiang 641100, Peoples R China
2.Indiana Univ, Earth & Atmospher Sci, Bloomington, IN USA
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Pakistan Joint Res Ctr Earth Sci, Islamabad, Pakistan
5.Chinese Acad Sci, Inst Mt Hazards & Environm, State Key Lab Mt Hazards & Engn Resilience, Chengdu 610299, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Yanlian,Liu, Weiming,Yanites, Brian J.,et al. Transient geomorphic response after landslide-induced river damming in the eastern margin of the Tibetan plateau[J]. CATENA,2024,246:14.
APA Zhou, Yanlian,Liu, Weiming,Yanites, Brian J.,Zhou, Liqin,Li, Xuemei,&Yang, Zewen.(2024).Transient geomorphic response after landslide-induced river damming in the eastern margin of the Tibetan plateau.CATENA,246,14.
MLA Zhou, Yanlian,et al."Transient geomorphic response after landslide-induced river damming in the eastern margin of the Tibetan plateau".CATENA 246(2024):14.

入库方式: OAI收割

来源:成都山地灾害与环境研究所

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。