摘要
基于栅格评价单元在滑坡崩塌地质灾害易发性评价中的弊端,采用斜坡评价单元对泸水县滑坡崩塌地质灾害的易发性进行评价.基于ARCGIS平台,建立了利用水文分析方法划分斜坡单元的方法体系.建立了信息量法-层次分析法的易发性评价模型,并对各评价因子的权重和信息量进行了计算提取.在此基础上,运用ARCGIS的空间分析功能,对泸水县滑坡崩塌地质灾害的易发性进行了区划,并对区划结果在宏观和微观上进行了验证.结果表明此种易发性划分方法准确、实用,对指导地质灾害的防治工作有重要意义.
The study focusing on applying slope units to landslide susceptibility was periormed in Lu-Shui county. The slope units was divided by using hydrology method based on ARCGIS software. The information quantitative method-Analytic Hierarchy process was established for landslide susceptibility. The weight and information content of assessment factors were extracted by ARCGIS. From the above,The landslide susceptibility was divided by using spatial anylsis of ARCGIS software. The assessment result was well matched in micro and macro. The study shows that the model of landslide susceptibility is accurate and reality and it has great practical signifi- cance on geological hazard prevention.
出处
《云南师范大学学报（自然科学版）》
2016年第3期66-72,共7页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
云南省1:5万地质灾害详查资助项目(DZXC2013-21)
关键词
斜坡单元
水文分析
信息量法-层次分析法
易发性评价
Slope units
Hydrological analysis
Informtion quantitative method-Analytic hierarchy process
Susceptibility assessment
