新疆博州地质灾害空间分异性研究  

ANALYSIS OF SPATIAL DISTRIBUTION OF GEOHAZARDS IN BORTALA REGION

作　　者：刘小利[1,2] 李井冈[1,2] 李雪[1,2] 王秋良[1,2] 

机构地区：[1]中国地震局地震研究所(地震大地测量重点实验室),武汉430071 [2]中国地震局地壳应力研究所武汉科技创新基地,武汉430071

出　　处：《大地测量与地球动力学》2014年第4期43-48,共6页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震研究所所长基金项目(IS201116022)

摘　　要：利用区域地质、DEM、降雨量和地质灾害调查数据,基于GIS平台,从高程、坡度、地形起伏度、沟壑密度、降雨量和地层岩性6个方面,对博州地区主要地质灾害的空间分布特征进行分析。结果表明,博州主要地质灾害集中分布于地形切割强烈、沟谷多、坡度大、地形起伏度大、降雨量大、岩性软弱的中高山和河谷地带。The Bortala Region is one of the types are various and complicated. By means of potential area suffering from serious geohazards, where geographical existing data, field investigation, DEM and geological map of the Bortala region,the main geohazard distribution were studied and geohazard susceptibility coefficients was computed by 6 independent factors （ elevation, slope, relief, gap density, annual rainfall, lithology） on ArcGIS as a platform. Based on the geohazard susceptibility coefficients, the study area was divided into five classes, namely very low sus- ceptibility, low susceptibility, moderate susceptibility, high susceptibility, and very high susceptibility, and the geo- hazard susceptibility map was produced. The results show that high-susceptibility zones located in moderate-high mountains and river valleys with high reliefs, steep slopes, intensive gully and soft rock.

关 键 词：地质灾害 博州 ARCGIS 空间分异性 DEM 地貌 

分 类 号：P208[天文地球—地图制图学与地理信息工程]