Material sources supplying debris flows in Jiangjia Gully

doi:10.1007/s12665-020-09020-4

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

	Material sources supplying debris flows in Jiangjia Gully
	Xiafei Tian 1,2; Fenghuan Su 2,3; Xiaojun Guo 2,3; Jingjing Liu 2,3,4; Yong Li 2,3
刊名	Environmental Earth Sciences
	2020
卷号	79 期号:13 页码:318
关键词	Landforms Surges (fluid)
ISSN号	1866-6280
DOI	10.1007/s12665-020-09020-4
通讯作者	Fenghuan, Su(fhsu@imde.ac.cn)
产权排序	1
文献子类	Article
英文摘要	Debris flow susceptibility is usually evaluated through material supplies and topographic features and the formation of debris flow is ascribed to the factors over the whole valley, almost ignoring detailed distribution of material sources and variety of behaviors in different tributaries. So far, there is not a comprehensive picture of debris flow developing from source tributaries to mainstream channel. Debris flow in Jiangjia Gully (JJG) exhibits diversity of surges and vivid scenarios concerning the forming and developing mechanisms. This study takes JJG as an example to explore how the materials are distributed in the valley and how the spatial heterogeneity of material distribution and tributary evolution influence the forming of variety of debris flow surges. It is found that most materials are distributed in tributaries of active stages with evolution index between 0.55 and 0.65; the occurrence of debris flow relies more on the spatial distribution of source tributaries than on the quantity of the material. Local conditions of tributaries, such as the concentration of materials, the granular structure of soils, and the locations receiving frequent rainfalls, are the very factors governing a debris flow event. It is the spatial heterogeneity of sources and material supplies that result in the variety of debris flow surges in JJG. Similar mode is believed to occur in debris flows in other regions. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
电子版国际标准刊号	1866-6299
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA230902] ; Key International S&T Cooperation Projects[2016YFE0122400]
WOS关键词	NUMERICAL-SIMULATION ; SHALLOW LANDSLIDES ; RAINFALL INTENSITY ; GRAIN COMPOSITION ; DURATION CONTROL ; SOURCE AREAS ; VELOCITY ; MUDFLOW ; SCALE
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000545748600002
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Key International S&T Cooperation Projects
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34912]
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	Fenghuan Su
作者单位	1.University of Chinese Academy of Sciences, Beijing, 100081, China; 2.Key Laboratory of Mountain Hazards and Surface Process, Chinese Academy of Sciences, Chengdu, 610041, China; 3.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; 4.State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu, 610065, China
推荐引用方式 GB/T 7714	Xiafei Tian,Fenghuan Su,Xiaojun Guo,et al. Material sources supplying debris flows in Jiangjia Gully[J]. Environmental Earth Sciences,2020,79(13):318.
APA	Xiafei Tian,Fenghuan Su,Xiaojun Guo,Jingjing Liu,&Yong Li.(2020).Material sources supplying debris flows in Jiangjia Gully.Environmental Earth Sciences,79(13),318.
MLA	Xiafei Tian,et al."Material sources supplying debris flows in Jiangjia Gully".Environmental Earth Sciences 79.13(2020):318.