Debris flows in the Lushan earthquake area: formation characteristics, rainfall conditions, and evolutionary tendency

doi:10.1007/s11069-021-04559-2

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Debris flows in the Lushan earthquake area: formation characteristics, rainfall conditions, and evolutionary tendency
	Guo, Xiaojun 2,3; Chen, Xingchang 4; Song, Guohu 5; Zhuang, Jianqi 6; Fan, Jianglin 1
刊名	NATURAL HAZARDS
	2021-02-02
页码	DOI: 10.1007/s11069-021-04559-2
关键词	Debris flows Formation mechanism Rainfall thresholds Spatial distribution Lushan earthquake
ISSN号	0921-030X
DOI	10.1007/s11069-021-04559-2
通讯作者	Guo, Xiaojun(aaronguo@imde.ac.cn) ; Chen, Xingchang(chenxingchang@swust.edu.cn)
产权排序	1
文献子类	Article; Early Access
英文摘要	Debris flows often occur in the mountainous watersheds of earthquake-affected areas, and in the Lushan earthquake area of southwestern China, they have become a significant hazard. In this study, the influencing factors and spatial distribution of debris flows were analyzed through a review of their occurrence history. Debris flows are mainly distributed in the northwestern part of the study area, which hosts the greatest density of active faults. The debris flows are generally formed by the 'progressive bulking' effect in channels, and deep incision, lateral erosion, and blockage breaking are common processes that amplify the magnitude of such debris flows. Rainfall thresholds for different types of debris flow were proposed to explain the spatial differences between debris-flow regions, and the temporal variations of those thresholds highlighted how the rainfall conditions required for the occurrence of debris flows have changed. Natural vegetation recovery, reduction in the availability of solid material, and artificial debris-flow control projects play important roles in raising the threshold of the rainfall conditions required for triggering debris flows.
电子版国际标准刊号	1573-0840
资助项目	Second Qinghai-Tibet Plateau Scientific Research[2019QZKK0903-02] ; National Research and Development Program[2020YFC1512000] ; National Research and Development Program[2017YFC1502504] ; NSFC[41977257] ; Department of Land and Resources Project of Sichuan Province[KJ-2018-22] ; Western Light of Young Scholars, CAS
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000614015800001
资助机构	Second Qinghai-Tibet Plateau Scientific Research ; National Research and Development Program ; NSFC ; Department of Land and Resources Project of Sichuan Province ; Western Light of Young Scholars, CAS
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/55903]
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
通讯作者	Guo, Xiaojun; Chen, Xingchang
作者单位	1.Sichuan Prov Meteorol Observ, Chengdu 610072, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Southwest Univ Sci & Technol, Sch Environm & Resource, Mianyang 621020, Sichuan, Peoples R China 5.Sichuan Inst Geol Engn Invest Grp Co LTD, Chengdu 610032, Peoples R China 6.Changan Univ, Sch Geol Engn & Surveying, Xian 710064, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xiaojun,Chen, Xingchang,Song, Guohu,et al. Debris flows in the Lushan earthquake area: formation characteristics, rainfall conditions, and evolutionary tendency[J]. NATURAL HAZARDS,2021:DOI: 10.1007/s11069-021-04559-2.
APA	Guo, Xiaojun,Chen, Xingchang,Song, Guohu,Zhuang, Jianqi,&Fan, Jianglin.(2021).Debris flows in the Lushan earthquake area: formation characteristics, rainfall conditions, and evolutionary tendency.NATURAL HAZARDS,DOI: 10.1007/s11069-021-04559-2.
MLA	Guo, Xiaojun,et al."Debris flows in the Lushan earthquake area: formation characteristics, rainfall conditions, and evolutionary tendency".NATURAL HAZARDS (2021):DOI: 10.1007/s11069-021-04559-2.