Finally, selects the seven typical debris flow ditch in Allah ditch region, and making use of the gray connection theories to synthesize with the fuzzy comprehension adjudicate, objectively evaluates the danger degree to these seven ditches.

• 最后选取阿拉沟七条典型泥石流沟,运用灰色关联度理论和模糊综合评判相结合的方法,客观地对这七条沟进行了危险度评价。