| 岷县地质灾害易损性模糊综合评价 |
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| 引用本文： | 吴润霖,党星海,周兆叶,周鹏,贾丽奇.岷县地质灾害易损性模糊综合评价[J].地理空间信息,2021,19(3):86-89,108. |
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| 作者姓名： | 吴润霖 党星海 周兆叶 周鹏 贾丽奇 |
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| 作者单位： | 兰州理工大学土木工程学院,甘肃兰州 730050;兰州理工大学土木工程学院,甘肃兰州 730050;甘肃省应急测绘工程研究中心,甘肃兰州 730050;兰州理工大学土木工程学院,甘肃兰州 730050;甘肃省应急测绘工程研究中心,甘肃兰州 730050;兰州理工大学土木工程学院,甘肃兰州 730050;兰州理工大学设计艺术学院,甘肃兰州 730050 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 岷县地形多变、地貌多样、地质环境复杂,近年来地震、滑坡等地质灾害多发。基于易损性影响因素,结合岷县具体情况,选取人口密度、国内生产总值、公路、房屋、林地和耕地6个指标,以乡镇为基本单元,利用模糊综合评判法构建评价体系,将研究区易损性划分为不同等级。结果表明,高易损性地区占研究区总面积的20.62%,中易损性地区的占比为19.90%,低易损性地区的占比为37.25%,极低易损性地区的占比为22.23%。将易损性结果与地质灾害历史灾害点进行叠加分析发现,中易损性和高易损性地区的历史灾害占灾害总数的50.53%,为岷县防灾减灾工作提供了新的思路和参考。
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| 关 键 词： | 地质灾害 易损性评价 模糊综合评判法 岷县 |
Fuzzy Comprehensive Evaluation of the Vulnerability of Geological Disasters in Min County |
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| Abstract: | The terrain of Min County is changeable,the landforms are diverse,and the geological environment is complex.In recent years,geological disasters such as earthquakes and landslides have occurred frequently.According to the specific conditions of Min County,taking the township as the basic unit,we selected six indicators of population density,gross domestic product,highway,housing,forest land and cultivated land,used the fuzzy comprehensive evaluation method to construct evaluation system,and divided the vulnerability of study area into different levels.The results show that the high vulnerability area accounts for 20.62%of the total area of study area,the medium vulnerability area accounts for 19.90%,the low vulnerability area accounts for 37.25%,and the extremely low vulnerability area accounts for 22.23%.We superimposed vulnerability results on historical disaster points of geological hazards.The results show that the medium and high vulnerability historical disasters account for 50.53%of the total disasters,which can provide new ideas and references for disaster prevention and reduction work in Min County. |
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| Keywords: | geological hazard vulnerability assessment fuzzy comprehensive evaluation method Min County |
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