提出用区域易损度来估计区域易损性。
It is put forward that the regional vulnerability can be estimated by the regional vulnerable degree.
根据人的价值理论改进了泥石流灾害易损度评价体系，提出了社会易损度的定量化方法。
Based on the human's axiology, the indexes of the debris flow vulnerability evaluation is improved and the fixed amount of the social vulnerability degree evaluation is put forward.
然后以自然灾害综合危险度和易损度指标值作为评判因子进行了自然灾害保险风险度综合评判；
Then natural disaster insurance risk degree is comprehensively assessed by the natural disaster's comprehensive danger degree and loss degree.
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