基于模糊优选理论的水资源效益评价体系

以模糊优选理论与模型为基础,同时考虑定量和定性指标的影响,构建了灌区水资源利用综合效益的多目标多层次半结构性评价体系。介绍该模型的计算步骤,应用该模型对陕西省某灌区的水资源效益进行综合评价,并与其他方法的评价结果进行比较。结果表明:该评价体系克服了以往评价以经济效益为主、忽视生态环境效益和社会效益的缺点;不仅能够用于不同方案的优选,而且还能给予每个方案优劣评价;评价体系更加合理,可靠性、实用性强,还可对指标进行扩展或变化,适用于多种综合评价问题。

Benefit evaluation system of water resources based on fuzzy optimization theory

Based on the fuzzy optimization theory and model,a multi-objective,multi-level and semi-structural evaluation system of water resources utilization in irrigation areas was developed,with consideration of the effects of both quantitative and qualitative indexes.The calculation steps were presented and the model was applied to the comprehensive evaluation of water resources benefit in an irrigation area of Shanxi Province.Comparison of results demonstrates that this evaluation system,which pays more attention to eco-environmental and social benefits,is better than other methods.Moreover,it can not only be used for optimization of different schemes but also for evaluation of each scheme.This evaluation system,with its function of extension and transformation of assessment indices,is highly rational,reliable and practical and is suitable for comprehensive evaluation of various problems.