Combined with Feature Value of Grades for results quantification,applying Variable Fuzzy Set model on assessment could overcome the unfitness of the maximum membership principle.

• 采用可变模糊集模型进行评价,以级别特征值方法量化评价结果,可有效解决最大隶属原则的不适应性。本文运用该模型对江苏省常熟市农业生态环境质量进行了评价。