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	Spatiotemporal evolution and driving factors of Chinas flash flood disasters since 1949
	Liu Yesen; Yang Zhenshan; Huang Yaohuan; Liu Changjun
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2018
卷号	61 期号:12 页码:1804-1817
英文摘要	This study examines the spatiotemporal evolution of Chinas flash flood disasters (FFDs) since 1949 and explores driving factors affecting the spatial distribution of historical FFDs.Records of more than 60000 FFDs are examined,and the centroid comparison method is used to reveal the spatiotemporal evolution of FFDs from 1951 to 2015.In particular,the geographical locations of the centroids,degrees of aggregation,and associated movement tendencies are examined to conduct a preliminary analysis of correlations between rainfall,population,and the spatiotemporal evolution of FFDs.Subsequently,using relevant data from 2000 to 2015,three factors relating to FFDs in natural watershed units include namely rainfall,human activity,and the environment of the Earths surface.The geographical detector method is then employed to explore the effect of these driving factors on the spatial distribution of FFDs.Analysis results show that displacement of the spatial distribution of FFDs since 1949 is correlated with variations in rainfall and population distribution.In addition,it is determined that the distribution of FFDs occurring between 2000 and 2015 have regional differentiation characteristics.However,the effect of rainfall on the distribution of FFDs is more significant than that of human activity or the environment of the Earths surface,but interactions occur between these latter two factors in disaster-formative environments.Furthermore,results also show that the driving factors of FFDs have significant spatiotemporal heterogeneity.In China,regions at high risk of FFDs include the Sichuan-Chongqing ecological zone,the South China ecological zone,the Yunnan-Guizhou Plateau,and the middle and lower reaches of the Yangtze River,while regions with a low risk of FFDs include the Northwest China arid zone,Qinghai-Tibet Plateau,Inner Mongolian Plateau,and the Northeast China ecological zone.These findings support further studies investigating disaster-formative environments,facilitate FFD risk zoning,and provide a scientific basis for plans to effectively prevent and control FFDs.
英文关键词	Flash flood disaster Centroid Driving factor Human activity Rainfall
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Engineering
CSCD记录号	CSCD:6408967
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336057
作者单位	Liu Yesen, China Institute of Water Resources and Hydropower Research, Research Center on Flood & Drought Disaster Reduction of the Ministry of Water Resources, Beijing 100038, China.; Liu Changjun, China Institute of Water Resources and Hydropower Research, Research Center on Flood & Drought Disaster Reduction of the Ministry of Water Resources, Beijing 100038, China.; Yang Zhenshan, Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, Key Lab of Regional Sustainable Development and Modelling,Chinese Academy of Sciences, Beijing 100101, China.; Huang Yaohuan, Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences, State Key Laboratory of Resources and Environmental Information System, Beijing 100101, China.
推荐引用方式 GB/T 7714	Liu Yesen,Yang Zhenshan,Huang Yaohuan,et al. Spatiotemporal evolution and driving factors of Chinas flash flood disasters since 1949[J],2018,61(12):1804-1817.
APA	Liu Yesen,Yang Zhenshan,Huang Yaohuan,&Liu Changjun.(2018).Spatiotemporal evolution and driving factors of Chinas flash flood disasters since 1949.Science China. Earth Sciences,61(12),1804-1817.
MLA	Liu Yesen,et al."Spatiotemporal evolution and driving factors of Chinas flash flood disasters since 1949".Science China. Earth Sciences 61.12(2018):1804-1817.