泥石流流域地貌发育阶段的定量分析——以北碚区为例  

A Quantitative Study on Geomorphologic Evolution of Debris Flow Basin——Taking Beibei provice as an example

作　　者：李青[1] 曾凡伟[1] 徐刚[1] 

机构地区：[1]西南师范大学资环学院,重庆400715

出　　处：《宜宾学院学报》2004年第4期82-85,共4页Journal of Yibin University

基　　金：西南师范大学自然地理学博士点开放基金资助 (41 1 4 0 8)

摘　　要：泥石流在山区时常爆发 ,直接造成巨大的财产损失 ,威胁人们的生命安全 ,而泥石流的成因又复杂 ,难以做到准确地预测预报。本文以北碚区的泥石流为研究对象 ,借助GIS的动能 ,运用A .N .Strahler的面积—高程分析法定量分析研究泥石流流域地貌演化阶段 ,结果表明 ,泥石流大部分发生在地貌发育的幼年期和壮年期阶段。这一结论希望能为我们防治预报泥石流提供一定的依据。Debris flow often erupts in mountainous area, it leads to lose money and threatens the safety of people's life.The cause of debris flow is complex, so it is difficult to forecast. The paper, by the means of the function of GIS and the area-altitude analysis of A.N.Stranler, makes a quantitative research on the stage of geomorphologic evolution of debris flow basin in Beibei province. The research indicates that mostly debris flow erupts in infancy and at the middle of the stage of geomorphologic evolution. We wish the result can provide something to forecast and deal with debris flow.

关 键 词：泥石流 面积-高程分析法 流域地貌演化阶段 

分 类 号：P931.2[天文地球—自然地理学]