[1]丁伟翠,薛星桥,杨强,等.基于GIS的甘肃省灵台县地质灾害易发性区划研究[J].水土保持研究,2010,17(03):32-34,78.
　DING Wei-cui,XUE Xing-qiao,YANG Qiang,et al.A Study of Geological Hazards Lability Zoning Based on GIS in Lingtai County of Gansu Province[J].Research of Soil and Water Conservation,2010,17(03):32-34,78.
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基于GIS的甘肃省灵台县地质灾害易发性区划研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年03期 页码: 32-34,78 栏目: 出版日期: 2010-06-20
Title:
A Study of Geological Hazards Lability Zoning Based on GIS in Lingtai County of Gansu Province
作者:
丁伟翠1, 薛星桥2, 杨强2, 孙秀娟2
1. 中国地质科学院 地质研究所, 北京 100037;
2. 中国地质调查局 水文地质环境地质调查中心, 河北 保定 071051
Author(s):
DING Wei-cui1, XUE Xing-qiao2, YANG Qiang2, SUN Xiu-juan2
1. Institute of Geology, Chinese Academy of Geological Science, Beijing 100037, China;
2. Center for Hydrogeology and Environmental Geology of CGS, Baoding, Hebei 071051, China
关键词:
灵台县; 地质灾害; 袭扰系数法; 地理信息系统; 易发性区划
Keywords:
Lingtai county; geological hazards; disturbance coefficient method (DCM); GIS; lability zoning
分类号:
P694
摘要:
通过对甘肃省灵台县地质灾害详细调查数据综合分析，采用袭扰系数法生成初步地质灾害易发性区划图，并利用地理信息系统软件MAPGIS 6.7空间分析功能将地质灾害的各个影响因素图叠加到初步地质灾害易发性区划分级图中，绘制出该县的地质灾害易发性分区图。首先将灵台县地质灾害分布图进行了500 m×500 m网格剖分，其次对每个网格内地质灾害的个数、体积密度、面积密度采取不同的原则将每个网格的灾害易发性程度分为四级，生成初步的地质灾害易发性等值线图。然后对该县的地形地貌图、地层岩性图、降雨量分布图、地形坡度图、植被覆盖图分别采取相应标准，分为四级，采取专家打分的方法确定其权重。最后叠加各个图件，从而生成了灵台县地质灾害易发性分区图，这为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可靠的依据。
Abstract:
According to the comprehensive analyses of the geological hazards survey data in Lingtai County, Gansu Province, using disturbance coefficient method generates a primary geological hazards lability zoning map. Using the spatial analysis software MAPGIS 6.7 to overlay each geological hazards factor map to the zoning map, and obtains the final geological hazards lability zoning map of the county. Firstly, distributes the geological hazards map of Lingtai with a 500 m×500 m grid subdivision. Secondly, divides the hazards lability into four degrees by the different principles of the number of geological hazards, body density, and surface density of each grid to generate the primary geological hazards lability contour map. Followed classifies the county’s topography map, the lithologic map, the rainfall distribution map, the topographic slope map, and the vegetation overlay map into four grades takes the proper standards, and takes experts scoring method to determine every weight value. Finally, overlays all of the above maps and generates the geological hazards lability zoning map in Lingtai county. The research has provided a reliable basis for government departments to take effective measures to carry out overall planning for hazards prevention and hazards management.

参考文献/References:

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备注/Memo

收稿日期:2009-11-17。
基金项目:陇东地区地质灾害详细调查（1212010814012）
作者简介:丁伟翠（1982- ），女，山东烟台人，博士研究生，主要从事地质制图与GIS应用研究。E-mail：dingweicuigis@163.com

更新日期/Last Update: 1900-01-01