兰州市区泥石流趋势分析的系统熵模型

System entropy model on Lanzhou urban debris flow trend analysis

本文依据泥石流灾害体形态确定的地貌发育程度构建了泥石流灾害的评价模型,并将熵理论综合应用于泥石流评价模型,应用该模型对兰州地区山谷泥石流趋势进行了分析,并指出了评价模型的不足。

Lanzhou urban has become a famous debris flow area in the upper reaches of Yellow River because of steep and frangible topographic, active geotectonic, soft and hard rock mass alternation, rainfall in a very short period and unreasonable development. This paper constructs an evaluation model on debris flow disaster by means of surface development degree of debris flow catastrophic body morphological, analyze valley debris flow development trend of Lanzhou urban areas applying entropy theory, and indicates the shortcomings of the debris flow evaluation model.