GIS-Based Mapping and Zonation of Landslide Hazards in Xiaojiang Valley of Southwestern China |
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作者姓名: | MaZe-zhong HeYi-ping XieHong CuiPeng ZhongDun-lun JamesS.Gardner |
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作者单位: | [1]InstituteofMountainHazardsandEnwronment,ChineseAcademyofSciences,Chengdu610041,Sichuan,China [2]DepartmentofGeographyandNaturalResourcesInstitute,UniversityofManitoba,Winnipeg,Mb.,Canada |
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摘 要: | Through the field survey, previous researches and interpretation of aerial photos, a landslide information database of Xiaojiang Valley, Yurman Province was set up based on the remote sensing (RS) and geographic information system (GIS) technologies. In the paper, a quantitative model for the landslide hazard assessment and zoning was presented,in which the potential energy could be obtained on basis of thorough analysis of the potential sliding volume, distance and direction of the landslide body. Taking landslide potential energy as the index of the hazard severity zonation, the study area was divided into severe, heavy, medium and light hazard zones.
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关 键 词: | GIS 地理信息系统 山体崩塌 中国 西北地区 丘陵地区 |
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