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针对泥石流发生的复杂性和不确定性,运用模糊数学综合评价的方法,从人类活动、地质、地形和气象水文条件4个总目标和19个子目标,建立了泥石流易发性模糊综合评价模型。确定了目标因素等级及权重,对邱家沟、天须沟和长坡沟泥石流易发性进行了综合评价。结果表明,邱家沟泥石流易发性最大,天须沟次之,长坡沟最小。
Aiming at the complexity and uncertainty of debris flow occurrence, a fuzzy comprehensive evaluation model of debris flow was established from the four general objectives and 19 sub-objectives of human activities, geology, topography and meteorological and hydrological conditions by fuzzy mathematics comprehensive evaluation method. The grade and weight of the target factors were determined, and the comprehensive evaluation of the vulnerability of Qiujiagou, Tianxuogou and Changpogou was made. The results show that the Qiujiagou debris flow is the most prone, followed by the Tusigou and Changpo ditch.