| 基于GIS的贵州省道路结冰灾害风险区划分析 |
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| 引用本文： | 汪超,罗喜平.基于GIS的贵州省道路结冰灾害风险区划分析[J].高原山地气象研究,2017,37(3):71-77. |
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| 作者姓名： | 汪超 罗喜平 |
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| 作者单位： | 贵州省气象台, 贵阳 550002 |
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| 基金项目： | 中国气象局气象关键技术集成与应用重点项目(CMAGJ2013Z13) |
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| 摘 要： | 本文利用贵州省84个气象站1971～2008年的观测资料和2013年贵州省社会经济资料，结合地理信息数据，从致灾因子、孕灾环境、承灾体易损性、承灾体抗灾能力等四个方面采用归一化后的加权平均方法综合分析了贵州省道路结冰灾害的风险。结果表明:贵州省道路结冰灾害风险的低风险区占全省面积的24.26%，一般风险区范围最大，占全省面积的36.41%，中等风险区占全省面积的24.02%，高风险区占全省面积的11.5%，极高风险区占比最小，为3.83%。全省中等风险及以上的风险区主要集中在贵州省中部以西地区，东部地区仅分布在在铜仁市中部的梵净山区、黔东南州西部的苗岭主锋之一雷公山一带。
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| 关 键 词： | GIS 道路结冰 风险区划 |
| 收稿时间： | 2017-09-13 |
Analysis of Icy Road Disaster Risk Zoning in Guizhou Province Base on GIS |
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| Institution: | Guizhou Meteorological Observatory, Guiyang 550002 |
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| Abstract: | Using the data of 84 meteorological observations during 1971～2008 and the socio-economic material of Guizhou Province in 2013 and the geographic information data，the icy road disaster risk zoning is analyzed in this paper based on GIStechnology.There are four aspects that the facts coursing disaster and the disaster development environment and the vulnerability of disaster-bearing body and defensive capability of disaster-bearing body are considered comprehensively in the research，and the risk is classified by jenks natural breaks optimization.The result shows that the low risk area is accounted for24.26%of the Guizhou Province’s area， and the general risk area as the largest region accounting for 36.41%， and the medium risk area accounting for 24.26%，and the high risk area accounting for 11.5%，and the highest risk area as the smallest one accounting for 3.83%.The region of the risk above medium level mainly distribute at the central and western Guizhou，and Fanjing Mountain at the southern Tongren City and Leigong Mountain as one peak of the Miao Ling at western Qiandongnan Prefecture. |
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