【摘要】 利用"高分一号"卫星影像数据和ASTER GDEM数据,针对坡度、软质岩地层、构造、地表湿度、植被覆盖五个指标进行了遥感提取,形成宏观滑坡易发环境,划分了重点解译区域。通过使用DEM数据提取滑坡周界,提取滑坡体植被发育异常信息划分滑坡体与背景界线,建立滑坡微地貌特征与滑坡体覆被异常特征为主的滑坡微观环境。最终结合宏观易发环境确定滑坡重点分布区域和微观特征环境勾绘滑坡周界的基础上,解译区内滑坡地质灾害点。更多还原

【Abstract】 Five indicators including slope,soft rock,structure,surface moisture,vegetation cover are extracted from GF-1and GDEM data,which is the delineation of key areas of hazard target. Then,periphery of landslide is attempted to detect by using of GDEM data and the extraction of vegetation cover anomaly is tried to select by using of method of remote sensing classification with GF-1 data. Combining with all above- macro and micro environmental characteristic,landslide geological hazard point is interpreted.更多还原