将可变模糊评价模型应用于大连市的干旱等级评价研究中,通过变化指标权重及模型参数得出的大连市2002年干旱状况的级别特征值比较稳定,总体评价结果为重度干旱。结果表明,应用可变模糊评价法评价区域干旱等级的方法可靠,为干旱等级评价提供了一种考虑多因素的综合方法。
The application of variable fuzzy assessment model on drought degree evaluation was studied herein.After establishing two index weight systems and by varying two model parameters,different eigenvalue of drought can be achieved,and the relative stable value will being regard as the final evaluation.As a case study for Dalian in 2002,the evaluation was in line with the actual situation.The case study shows that the method is reliable and is a comprehensive way to drought evaluation.