Why Flash Floods Occur Differently across Regions? A Spatial Analysis of China

doi:10.3390/w12123344

	Why Flash Floods Occur Differently across Regions? A Spatial Analysis of China
	Liu, Yesen 3; Huang, Yaohuan 1,2
刊名	WATER
	2020-12-01
卷号	12 期号:12 页码:13
关键词	flash floods influencing factors spatial heterogeneity Geodetector China
DOI	10.3390/w12123344
通讯作者	Huang, Yaohuan(huangyh@igsnrr.ac.cn)
英文摘要	In recent years, flash floods have increased, accompanying rapid economic growth, changes to the natural environment and increases in extreme climate events. However, spatial heterogeneity in the influencing factors has seldom been studied systematically. This paper investigates this issue by using the Geodetector tool and considering 14 factors such as climate, natural environment, and human activities in 11 ecoregions in China based on flash flood records from 1950 to 2015 collected by the Investigation Project of Chinese Flash Floods. The results showed that there is obvious spatial heterogeneity in the main influencing factors and influencing weights in 11 ecoregions. Precipitation and landforms have the greatest effects on flash floods and the interactions of these two factors have the strongest effects as compared to interactions between other factors in most of the 11 ecoregions; however, the effect has obvious variation from northwest to Southeast. Meanwhile, human activities were found to have tangible impacts, especially in ecologically vulnerable regions. The findings provide a new understanding of how and why flash floods occur in a particular region and contribute to the formulation of regionally targeted strategies to cope with flash flood.
资助项目	CRSRI Open Research Program[CKWV2018484/KY] ; National Key Research and Development Program of China[2017YFB0503005] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040402]
WOS关键词	RAINFALL ; CLIMATE ; SYSTEM ; IMPACT ; GIS
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000602802100001
资助机构	CRSRI Open Research Program ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/137393]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Yaohuan
作者单位	1.Univ Chinese Acad Sci, Coll Resource & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yesen,Huang, Yaohuan. Why Flash Floods Occur Differently across Regions? A Spatial Analysis of China[J]. WATER,2020,12(12):13.
APA	Liu, Yesen,&Huang, Yaohuan.(2020).Why Flash Floods Occur Differently across Regions? A Spatial Analysis of China.WATER,12(12),13.
MLA	Liu, Yesen,et al."Why Flash Floods Occur Differently across Regions? A Spatial Analysis of China".WATER 12.12(2020):13.