摘要
本文提出阿拉沟沟口至夏尔沟沟口之间泥石流路径分布图,并且在此基础上讨论泥石流路径地貌测量学特征。研究表明.本区泥石流路径较密.沿主谷延伸方向每公里为4.75条.泥石流路径垂直高差较小,<400m的路径占60%,其面积半数以上<0.5km^2.路径比降和相对切割深度的数值主要集中在100-600‰和50-200m/km值域.
On the basis of the destrtbution map of debris flow paths along the main valley ofAlagou betweem the grcave mouths of Alagou and Xiaergou, the geometrical features ofdebris flow paths in the study area were discussed. The research results show that the pathsin the study area are crowded together, there being 4.7 paths per km along the main valleyof Alagou.The vertical differences of their heights are rather small, the paths with theheights lower than 400 m taking up 60% of all. More than 50% of paths possess area of0.5km^2. Their gradients and relative cutting depths are concentrated in the ranges of 100-600‰ and 50-200m/km.
出处
《干旱区地理》
CSCD
北大核心
1991年第S1期43-49,共7页
Arid Land Geography
