中文摘要：

2013年7月22日,甘肃岷县、漳县发生了MS6.6地震.震后遥感影像目视解译与实地调查结果表明,本次地震触发了至少2 330处滑坡,大概分布在一个面积为330km2的矩形区域内.本文在GIS平台下统计了这些滑坡的发生高程、坡度、坡向、斜坡曲率、地层岩性、PGA共6类地形、地质与地震特征参数的特征.结果表明2400m～2 600m的高程范围、10°～20°的坡度范围、西与北西坡向、-1～-0.1斜坡曲率值范围、古近系（Eb）砾岩与砂岩中、地震动峰值加速度（PGA）为0.16g是岷县漳县地震滑坡的多发因子区间.

英文摘要：

On July 22,2013 at 07：45 （Beijing time）,an earthquake of MS6.6 occurred at the boundary between Minxian County and Zhangxian County in the mountain area of Western Qinling,southern Gansu Province.A strong aftershock of MS5.6 occurred at 34.6°N,104.2°E at a focal depth of 14 km.As of 13：00 24 July,the earthquake had affected 780 100 000 people in 491 towns of 33 counties in 6 cities （prefectures）：Dingxi,Longnan,Tianshui,Baiyin,Linxia,and Gannan.The earthquake caused 95 deaths and 1 366 injuries.The earthquake triggered many landslides for several reasons,including that the earthquake-struck area in the western Qinling area of southern Gansu Province was covered by loose thick loess and has steep topography,and there was strong rainfall before the earthquake.Strong aftershocks caused more landslides to occur.The landslides triggered by the Lushan earthquake were of various types,such as falls,slides,and topples on loess scarp,soil deepseated landslides,large soil avalanches,and slope cracks.From visual interpretation of post-earthquake remote sensing images and selected field checks,at least 2 330 landslides were triggered by this earthquake,and these landslides occurred in a rectangular area of about 330 km2.Based on the geographic information system （GIS）,we analyzed six topographic,geological,and seismic parameters：elevation,slope angle,slope aspect,slope curvature,formation lithology,and PGA.The elevation of the study area ranges from 2 207 m to 3 340 m.The study area was divided into 11 classes based on 200 m intervals for landslide statistics.The slope angles in the study area range from 0° to 64.6°,and were divided into nine classes：0°～5°,5°～10°,10°～15°,15°～20°,20°～25°,25°～30°,30° ～35°,35°～40°,and 40°～64.6°.The slope aspect was divided into nine classes：flat,north,northeast,east,southeast,south,southwest,west,and northwest.Based on the slope curvature value,the study area was divided into six classes,and the ranges of the slope curvature value w