水土保持通报2012，Vol.32Issue(1)：10-13,4.
基于RS和GIS的雅鲁藏布江林芝-加查段沿线泥石流源地物源分析
RS and GIS Based Analysis of Material Sources in Debris Flow Origin Areas Along Linzhi-Jiacha Section in Yarlung Zangbo River
摘要
Abstract
In order to study the impacts and hazards of debris flow disaster on the Linzhi—Jiacha section along the Yarlung Zangbo River in Tibet,remote sensing and geographical information systems techniques are used to extract information on the material sources in the debris flow origin areas along the Linzhi—Jiacha section and analyze the distribution characteristics of the material sources.Results from the study showed that the distribution of the material sources in the debris flow origin areas is not uniform due to the influences of formation lithology,altitude,and topographic slope.After glacier melting and glacier type mudflow,the material sources are more developed and the accumulated loose materials are more abundant,which further stimulates the material sources and produces a large amount of new material sources in the debris flow origin areas.Consequently,the frequency of debris flows along the river is raised and the scale of the debris flows is enlarged.关键词
西藏/雅鲁藏布江/泥石流/源地/遥感Key words
Tibet Autonomous Region/Yarlung Zangbo River/debris flow/origin area/remote sensing分类
天文与地球科学引用本文复制引用
王高峰,唐川,王洪德,李为乐,王玉华..基于RS和GIS的雅鲁藏布江林芝-加查段沿线泥石流源地物源分析[J].水土保持通报,2012,32(1):10-13,4.基金项目
国土资源部公益性行业科研专项“青藏高原东南部地质灾害与防灾减灾对策研究” （）
