滑坡编目的空间数据分析及实例应用  

Analyses and example application of spatial data for landslide inventory

作　　者：胡元鑫[1] 刘新荣[1] 罗建华 葛华 

机构地区：[1]重庆大学土木工程学院,重庆400045 [2]南江水文地质与工程地质队,重庆401121 [3]成都地质调查中心,成都610081

出　　处：《兰州大学学报（自然科学版）》2011年第3期9-17,共9页Journal of Lanzhou University(Natural Sciences)

基　　金：中国地质调查局项目(1212010914011)

摘　　要：结合滑坡环境因素处理的一些重点问题,对滑坡编目典型空间数据集进行了分析.在滑坡编目空间数据集分析基础上,利用GRASS GIS软件对汶川"5.12"地震映秀极震区地震滑坡作了编目,获得了编目区内的滑坡类型、分布、几何特征信息及滑坡概率密度与滑坡面积之间的关系.该滑坡编目实例表明利用各类空间数据集和3S技术可快速进行区域性滑坡编目.Combined with some important issues concerning landslide environmental factors, the typical spatial data sets of landslide inventory were analysed. Based on spatial data sets of landslide inventory discussed above, earthquake-induced landslides in the Yingxiu meizoseismal area of 5.12 Wenchuan earthquake were inventoried by use of GRASS GIS. From the earthquake-induced landslide inventory, the landslide types, distributions, geometry information and correlation between landslide probability density and landslide area were extracted. It can be concluded from the earthquake-induced landslide inventory that landslide inventory in a large region can be made rapidly by means of application of spatial data sest 3S techniques.

关 键 词：地震滑坡 滑坡编目 空间数据 映秀极震区 

分 类 号：P642.2[天文地球—工程地质学]