水土保持通报2012，Vol.32Issue(3)：203-207,5.
杂谷脑河流域暴雨型泥石流沟地貌特征分析
Geomorphic Features of Rainstorm-induced Debris Flow Gullies in Zagunao River Basin
摘要
Abstract
Geomorphic features of a gully is an important slowly varying factor in the processes of debris flow,which determine the driving forces of debris flow,restrict the surface runoff converge among water source conditions and influence the ways of solid material supply.Therefore,debris flow occurrence can be analyzed by the geomorphic features of a drainage basin.By taking a rainstorm-induced debris flow gullies in the middle of Zagunao River basin as the research object,the relationships among geomorphic information entropy in gully development stages,basin area,longitudinal channel bed gradient and debris flow disaster characteristics are analyzed.Geomorphic information entropy of the high frequency debris flow gullies is found to be 0.12~0.20 and the low frequency debris flow gully,0~0.12 and 0.20~0.30,respectively.When gully area is 〉15 km2 and longitudinal channel bed gradient is 〈300‰,debris flow is watery,and on the contrary,is viscous.关键词
干旱河谷/杂谷脑河/泥石流/地貌信息熵Key words
dry valley/Zagunao River/debris flow/geomorphic information entropy分类
天文与地球科学引用本文复制引用
黄海,石胜伟,谢忠胜,佘涛..杂谷脑河流域暴雨型泥石流沟地貌特征分析[J].水土保持通报,2012,32(3):203-207,5.基金项目
地质矿产调查评价专项“西部复杂山体滑坡快速加固技术研究” （）
