| 中国山洪灾害危险性评价 |
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| 引用本文： | 赵刚,庞博,徐宗学,王子丰,史蓉.中国山洪灾害危险性评价[J].水利学报,2016,47(9):1133-1142,1152. |
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| 作者姓名： | 赵刚 庞博 徐宗学 王子丰 史蓉 |
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| 作者单位： | 北京师范大学 水科学研究院, 水沙科学教育部重点实验室, 北京 100875,北京师范大学 水科学研究院, 水沙科学教育部重点实验室, 北京 100875,北京师范大学 水科学研究院, 水沙科学教育部重点实验室, 北京 100875,北京师范大学 水科学研究院, 水沙科学教育部重点实验室, 北京 100875,北京师范大学 水科学研究院, 水沙科学教育部重点实验室, 北京 100875 |
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| 基金项目： | 北京市自然科学基金重点项目（8141003）；国家自然科学基金青年科学基金项目（51309009） |
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| 摘 要： | 根据山洪灾害特点,对中国山洪灾害危险区进行了界定,并构建了中国山洪灾害危险性评价指标体系;采用可变模糊集方法对中国1 km×1 km分辨率山洪灾害危险性等级进行评价,分析了我国山洪灾害的空间分布特征。研究结果表明,我国约2/3国土面积可能受到山洪灾害威胁,山洪高危险性区域占国土面积的19.95%,极高危险区域占国土面积的3.92%。全国33个省级区域中,香港、福建、广西、贵州和重庆高危险区面积比例排在前5位,是山洪灾害高发区;浙江、湖北、四川等区域易受突发性小规模山洪灾害影响。研究结果客观反映了中国山洪灾害的分布特征,可为山洪灾害区划与风险分析提供科技支撑。
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| 关 键 词： | 山洪灾害 危险性 中国 |
| 收稿时间： | 5/2/2015 12:00:00 AM |
Assessment on the hazard of flash flood disasters in China |
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| ZHAO Gang,PANG Bo,XU Zongxue,WANG Zifeng and SHI Rong.Assessment on the hazard of flash flood disasters in China[J].Journal of Hydraulic Engineering,2016,47(9):1133-1142,1152. |
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| Authors: | ZHAO Gang PANG Bo XU Zongxue WANG Zifeng and SHI Rong |
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| Affiliation: | College of Water sciences, Beijing Normal University, Key Laboratory for Water and Sediment Sciences, Ministry of Education, Beijing 100875, China,College of Water sciences, Beijing Normal University, Key Laboratory for Water and Sediment Sciences, Ministry of Education, Beijing 100875, China,College of Water sciences, Beijing Normal University, Key Laboratory for Water and Sediment Sciences, Ministry of Education, Beijing 100875, China,College of Water sciences, Beijing Normal University, Key Laboratory for Water and Sediment Sciences, Ministry of Education, Beijing 100875, China and College of Water sciences, Beijing Normal University, Key Laboratory for Water and Sediment Sciences, Ministry of Education, Beijing 100875, China |
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| Abstract: | The hazard area of flash flood disaster in China was identified, and the assessment index was proposed on the basis of the characteristics of flash flood disasters in this study. The variable fuzzy set model was used to evaluate the hazard of flash flood disaster with 1km×1km of resolution in China,and the spatial variation of hazard was analyzed. The results showed that hazard areas accounted for two thirds of the land area in China,in which the high-hazard areas of flash flood disasters accounted for 19.95%,and the extremely high hazard areas accounted for 3.92%. The top five provinces with great ratios of high-hazard areas among the 33 provinces (cities,autonomous regions) in China are Hong Kong,Fujian,Guangxi, Guizhou and Chongqing,which are all flash flood disaster-prone areas;Zhejiang,Hubei,Sichuan and other areas are vulnerable to the impact of small-scale flood disasters. The result objectively reflected the spatial variation of flash flood in China and could provide scientific support for quantitative assessment of flash flood disasters and disasters regionalization. |
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| Keywords: | Flash flood disaster hazard China |
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