二级模糊综合评判法在区域节水灌溉方式优选中的应用

Application of Two-level Fuzzy Comprehensive Evaluation in Regional Water Saving Irrigation Types Selection

构建了二级模糊评判综合模型,采用主客观相结合的复合赋权法,即先用熵值法确定初始权重,再依据决策者的语气算子进行调整,对区域节水灌溉方式进行了优选。实例表明,评价结果与实际情况相符,方法简单易行,思路清晰,为节水灌溉方式的优选提供了可靠依据。

This paper builds a two-level Fuzzy Comprehensive Evaluation model and introduces a combination of subjective and objec rive method to determine weight indexes. Namely, the initial weights are determined by entropy method, and then the weight indexes are adjusted according to the tone operator of the policy makers. The proposed method is applied to select the water-saving irrigation types in Fuxin area of Liaoning province. The instance shows that the evaluation result accords with the actual situation and the method is simple and clear, which provides reference for the water-saving irrigation selection.