基于GIS技术的海南省白沙县地质灾害易发性区划研究  

STUDY ON THE GEOLOGICAL HAZARDOUS VULNERABLE ZONING OF BAISHA COUNTY IN HAINAN PROVINCE BASED ON GIS TECHNOLOGY

作　　者：杨峰[1] 陈毅 李信 薛桂澄[1] 柳长柱[1] 夏南[1] 

机构地区：[1]海南省地质调查院,海口570206 [2]海南地质综合勘察设计院,海口570206

出　　处：《地质灾害与环境保护》2017年第4期87-89,101,共4页Journal of Geological Hazards and Environment Preservation

摘　　要：通过对海南省白沙县1∶5万地质灾害详细调查数据综合分析,选取地质构造、地形地貌及人类活动三大类,构造、工程地质岩组、坡度、坡高、海拔高度、植被覆盖率、河流及公路等八小类作为地质灾害影响评价因子。在ArcGIS平台上运用AHP法,进行评价因子权重计算并建立评价模型,完成白沙县地质灾害易发程度区划,划分出高、中、低和不易发区,为当地政府部门采取有效的措施进行统筹规划减灾防灾以及灾害治理提供了理论依据。Based on the comprehensive survey data of 1 ： 50 000 geological disasters in Baisha County of Hainan Province, the geological structure, topography and human activities were selected as the three categories, tectonics, engineering geological rock group, slope, slope height, altitude, vegetation cover Rate, river and highway and other eight sub- categories as a geological hazard impact assessment factors. AHP method is used on the ArcGIS platform to evaluate the weight of the evaluation factor and to establish the evaluation model. The geological disasters are divided into high, medium, low and non-prone areas, and the local government departments take effective measures to coordinate Planning disaster prevention and disaster prevention and disaster management provides a theoretical basis.

关 键 词：地质灾害 易发性区划 ARCGIS 评价因子 

分 类 号：X4[环境科学与工程—灾害防治] X141