基于组合赋权法的白龙江流域甘肃段地质灾害危险性评价

doi:10.7522/j.issn.1000-0240.2014.0147

冰川冻土 ›› 2014, Vol. 36 ›› Issue (5): 1227-1236.doi: 10.7522/j.issn.1000-0240.2014.0147

基于组合赋权法的白龙江流域甘肃段地质灾害危险性评价

贾贵义¹, 全永庆², 黎志恒¹, 梁收运², 蒋魁², 刘德玉¹, 杨亚兵¹

1. 甘肃省地质环境监测院, 甘肃兰州 730050;
2. 兰州大学土木工程与力学学院地质工程系, 甘肃兰州 730000

收稿日期:2014-03-18 修回日期:2014-07-07 出版日期:2014-10-25 发布日期:2014-11-19
通讯作者: 黎志恒, E-mail:lizhh198@163.com E-mail:lizhh198@163.com
作者简介:贾贵义(1961-), 甘肃秦安人, 高级工程师, 1983年毕业于成都理工大学, 现主要从事环境地质方面的研究工作. E-mail:378002440@qq.com
基金资助:
中国地质调查局地质调查工作项目(1212011089083)资助

Geo-hazards assessment for the Gansu segment in Bailongjiang River basin by using combination weighting method

JIA Guiyi¹, QUAN Yongqing², LI Zhiheng¹, LIANG Shouyun², JIANG Kui², LIU Deyu¹, YANG Yabing¹

1. Gansu Institute of Geological Environment Monitoring, Lanzhou 730050, China;
2. Geological Engineering Department, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China

Received:2014-03-18 Revised:2014-07-07 Online:2014-10-25 Published:2014-11-19

摘要/Abstract

摘要：

以甘肃省白龙江流域主要城镇环境工程地质勘查及历次地质调查数据为基础, 分析了地貌、人类活动等因素对白龙江流域甘肃段地质灾害的控制作用, 选定了坡度、岩性、地震、河流、降水等评价因子, 采用层次分析法和信息量法组合赋权的方式确定评价因子的综合权重, 最后利用GIS的叠加、以及重分类功能进行了地质灾害危险性分区评价. 结果表明: 白龙江流域地质灾害主要分布于人口相对密集的城镇(河谷)一带, 地质灾害分布相对密集, 危险性较大. 而以农牧业为主的中、高山区地质灾害分布相对稀疏, 危险性较低.

关键词: 组合赋权, 地质灾害危险性评价, 信息量法, 层次分析法, 白龙江流域

Abstract:

Based on the data of geological survey of environmental engineering in the major towns in the Bailongjiang River basin, Gansu Province, the landform, human activities and other influence factors in the study area are considered and analyzed. Slope, lithology, earthquake, river, precipitation and other evaluation indexes are selected, and the evaluation factors' weights are determined by combination of the information content method and AHP, and finally the geo-hazards assessment in the study area is implemented by the function of superposition and reclassification of GIS technology. The results indicated that the geological disasters are mainly distributed in the town (valley) areas with relatively dense population in the Bailongjiang River basin, where geological disasters are relatively concentrated, with more danger. While geological hazards are relatively sparse in the middle and high mountain areas, where agriculture and animal husbandry develop well, with less danger.

Key words: combination weighting, geo-hazards assessment, information content method, AHP, Bailongjiang River basin

中图分类号:

贾贵义, 全永庆, 黎志恒, 梁收运, 蒋魁, 刘德玉, 杨亚兵. 基于组合赋权法的白龙江流域甘肃段地质灾害危险性评价[J]. 冰川冻土, 2014, 36(5): 1227-1236.

JIA Guiyi, QUAN Yongqing, LI Zhiheng, LIANG Shouyun, JIANG Kui, LIU Deyu, YANG Yabing. Geo-hazards assessment for the Gansu segment in Bailongjiang River basin by using combination weighting method[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2014, 36(5): 1227-1236.

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基于组合赋权法的白龙江流域甘肃段地质灾害危险性评价

Geo-hazards assessment for the Gansu segment in Bailongjiang River basin by using combination weighting method

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