摘要
本文从阿拉沟地区泥石流形成的条件出发,除降水外,用因子分析的方法确定泥石流形成的四个成分.进行沟谷类型分类,作出沟谷类型分布图.不同沟谷类型分布与1973-1990年阿拉沟六次主要泥石流的形成范围相比较,二者界线很接近,吻合的范围很一致.这项研究对本地区经济开发和交通建设、泥石流防治有重要的实际意义.
Based on the condition of debris flow formation except rainfall in Alagou basin,Tianshan Mountains, four principal components for debris flow formation were deter-mined with factor analyzing method, valley types classified and map of distribution of val-ley types mapped. The distribution of valleys with different types are in accdordance withthe formation ranges of six main debris flows occurred from 1973 to 1990, their marginsanalogous. This research is of great significance for economy and transport constructions,and debris flow preventing in Alagou basin.
出处
《干旱区地理》
CSCD
北大核心
1991年第S1期76-83,共8页
Arid Land Geography
