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依据可变模糊集理论,构造了城市用地适用性评估的相对差异函数模型和相对隶属函数模型,建立了求解综合相对隶属度的可变模糊评估模型,并应用该模型对2组待开发利用用地适用性进行了评估.研究表明:可变模糊评估是依据对立相对隶属函数来描述模糊概念,通过参数的可变性,自我验证可变模糊评估方法的可靠性,并通过级别特征值表达了评估对象属于某级别的程度,使评估结果更为精细,从而为城市用地适用性评估提供了一种有效的新方法.
According to the variable fuzzy set theory, the relative difference function model and relative membership function model of urban land suitability assessment are constructed, and a variable fuzzy evaluation model is established to solve the comprehensive relative membership degree. The model is applied to two groups of land for development and utilization The applicability is evaluated.The research shows that the variable fuzzy evaluation describes the fuzzy concept based on the opposite subordinate function, verifies the reliability of the variable fuzzy evaluation method through the parameter variability, and expresses the evaluation object through the level eigenvalue Belonging to a certain level, the result of the assessment is finer, which provides an effective new method for evaluating the suitability of urban land use.