文献类型： 外文期刊

作者： Xiong, Junnan ¹ ; Pang, Quan ¹ ; Fan, Chunkun ³ ; Cheng, Weiming ² ; Ye, Chongchong ¹ ; Zhao, Yunliang ¹ ; He, Yuanron ¹ ;

作者机构： 1.Southwest Petr Univ, Sch Civil Engn & Architecture, Chengdu 610500, Peoples R China

2.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China

3.Tibet Acad Agr & Anim Husb Sci, Agr Res Inst, Lhasa 850000, Peoples R China

4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

5.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China

6.Xiamen Univ Technol, Coll Comp & Informat Engn, Xiamen 361024, Peoples R China

关键词： flash flood; spatiotemporal patterns; driving forces; geomorphic regionalization; sensitivity; Fujian Province

期刊名称：ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION （ 影响因子：2.899； 五年影响因子：2.971 ）

ISSN：

年卷期： 2020 年 9 卷 2 期

页码：

收录情况： SCI

摘要： Flash floods are one of the most destructive natural disasters. The comprehensive identification of the spatiotemporal characteristics and driving factors of a flash flood is the basis for the scientific understanding of the formation mechanism and the distribution characteristics of flash floods. In this study, we explored the spatiotemporal patterns of flash floods in Fujian Province from 1951 to 2015. Then, we analyzed the driving forces of flash floods in geomorphic regions with three different grades based on three methods, namely, geographical detector, principal component analysis, and multiple linear regression. Finally, the sensitivity of flash floods to the gross domestic product, village point density, annual maximum one-day precipitation (Rx1day), and annual total precipitation from days > 95th percentile (R95p) was analyzed. The analytical results indicated that (1) The counts of flash floods rose sharply from 1988, and the spatial distribution of flash floods mainly extended from the coastal low mountains, hills, and plain regions of Fujian (IIA2) to the low-middle mountains, hills, and valley regions in theWuyi mountains (IIA4) from 1951 to 2015. (2) From IIA2 to IIA4, the impact of human activities on flash floods was gradually weakened, while the contribution of precipitation indicators gradually strengthened. (3) The sensitivity analysis results revealed that the hazard factors of flash floods in different periods and regions had significant differences in Fujian Province. Based on the above results, it is necessary to accurately forecast extreme precipitation and improve the economic development model of the IIA2 region.