摘要
泥石流是危害人民群众生命财产安全的自然灾害类型之一,运用遥感技术解译地表信息是一种既方便又准确的方法,因此利用遥感技术对典型泥石流迹地进行综合遥感解译是一种安全有效的泥石流信息获取手段。以Landsat8影像为数据源,通过对东川小江流域典型沟谷泥石流——大白泥河流域建立遥感解译标志,分区段进行迹地信息提取并统计数量特征,再对地表覆盖信息进行统计分析,从而全面地掌握泥石流的发育特征。最终解译出物源区段滑坡体面积175.32hm^2,流通区段滑坡体面积98.81hm^2,堆积区段堆积扇面积138.88hm^2。
Debris flow is one of the types of natural disasters that endanger the safety of people＇s lives and property. It is a convenient and accurate method to interpret the surface in- formation by using remote sensing technology. Therefore, it is a safe and effective debris flow information acquisition method to use remote sensing to analyze the typical debris flow. Based on the Landsat8 image as the data source, the remote sensing interpretation sign of the typical gully debris flow in Xiaojiang River Basin Dongchuan County Dabaini River Basin was carried out. Divided the segment, carried out the excavation information and counted the quantitative features. Then analyzed statistical surface cover information, so as to fully grasped the debris flow development characteristics. Finally, the area of the landslide in Source area is 175.32 hectares, the area of the landslide in Circulation area is 98.81 hectares, and the area of deposition fan in Accumulation area is 138.88 hectares.
出处
《地质灾害与环境保护》
2017年第3期96-100,共5页
Journal of Geological Hazards and Environment Preservation
基金
国家自然科学基金项目
滇中星云湖高原湖泊流域聚落空间格局演化研究(No.41561083)
云南省自然科学基金重点项目
滇东南岩溶山地水土环境脆弱性空间分异的多尺度探测研究(No.2015FA016)
关键词
泥石流
遥感解译
地表覆被
小江流域
大白泥河
debris flow
remote sensing interpretation
surface cover
Xiaojiang River Basin
Dabaini River
