气候变化领域集成服务门户(CCPortal): Potential sediment sources identification of debris flows in the Jiangjia Gully, China

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DOI	10.1007/s11629-019-5787-y
	Potential sediment sources identification of debris flows in the Jiangjia Gully, China
	Tian Xia-fei; Li Yong; Tian Quan-yan
通讯作者	Tian, XF (通讯作者)，Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China. ; Tian, XF (通讯作者)，Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China. ; Tian, XF (通讯作者)，Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
发表日期	2021
ISSN	1672-6316
EISSN	1993-0321
起始页码	1886
结束页码	1901
卷号	18 期号:7
英文摘要	It is of great significance for gully prevention and management to identify the potential sediment source of debris flows. Debris flow in a gully always originates from tributaries that have different gravity potential energies and sediment condition. In this study, tributaries of the Jiangjia Gully (JJG) in Yunnan province, China, are taken as the study area to determine the possible sediment sources of debris flow. It was found that tributaries with a high evolution index (EI, the integral of the hypsometric curve) always had high gravity potential energy, which favors the occurrence of landslide activity. Furthermore, the relationship between sediment distribution, gravity potential energy, and EI is compared, respectively. The results showed that the EI had a greater influence on the occurrence of landslides, and sediments were concentrated in tributaries with EI between 0.5 and 0.6. Accordingly, tributaries with EI > 0.5 were identified as the sediment sources of debris flow. In addition, the shape of a tributary was related to EI and can reflect the condition of water and sediment storage.
关键词	SUSCEPTIBILITY ASSESSMENT VULNERABILITY ASSESSMENT HAZARD ASSESSMENT LANDSLIDES FREQUENCY MAGNITUDE EVOLUTION SYSTEMS MODEL GIS
英文关键词	Hypsometric curve; Evolution division; Gravity potential energy curve; Landslides; Identification; Debris flow
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000660428200001
来源期刊	JOURNAL OF MOUNTAIN SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254855
作者单位	[Tian Xia-fei; Li Yong] Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China; [Tian Xia-fei; Li Yong] Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China; [Tian Xia-fei; Tian Quan-yan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Tian Quan-yan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 73000, Peoples R China
推荐引用方式 GB/T 7714	Tian Xia-fei,Li Yong,Tian Quan-yan. Potential sediment sources identification of debris flows in the Jiangjia Gully, China[J]. 中国科学院西北生态环境资源研究院,2021,18(7).
APA	Tian Xia-fei,Li Yong,&Tian Quan-yan.(2021).Potential sediment sources identification of debris flows in the Jiangjia Gully, China.JOURNAL OF MOUNTAIN SCIENCE,18(7).
MLA	Tian Xia-fei,et al."Potential sediment sources identification of debris flows in the Jiangjia Gully, China".JOURNAL OF MOUNTAIN SCIENCE 18.7(2021).