水资源效益综合评价的可变模糊决策理论及应用

Variable fuzzy decision-making theory and its application to comprehensive benefits evaluation of water resources

水资源效益评价体系是一个综合经济效益、生态环境效益和社会效益,既有定量指标又有定性指标的多层次半结构性体系.为提高评价的可靠性,综合考虑了定性指标和定量指标对水资源经济效益、生态环境效益和社会效益的影响,并将两级可变模糊决策模型与可变模糊模式识别模型同时应用于半干旱地区灌区水资源综合效益评价研究中.结果表明,可变模糊模式识别模型优于两级模型,计算结果稳定,不仅能够进行不同方案优选,而且可以对各个方案进行优劣等级评价.

The comprehensive benefit evaluation system of water resources is a multi-level and semi-structural system integrating economic,ecological environment and social benefits as well as including quantitative and qualitative indexes.To enhance the reliability,considering the influences of both quantitative and qualitative indexes on the integrated economic,eco-environmental and social benefits of water resources,two-level variable fuzzy decision-making model and variable fuzzy pattern recognition model are applied to the comprehensive benefits evaluation of water resources in a semi-arid irrigation areas.The results show that the variable fuzzy pattern recognition model is superior to two-level model,which makes the calculation results steadier.The variable fuzzy pattern recognition model can not only optimize the different schemes,but also evaluate the grade of each scheme.