群决策—可拓学模型在环境质量后评价中的应用

Application of Extension Matter Element Evaluation Model Based on Group Decision to Environment Quality Post-assessment

以开封堤防加固工程为例,基于可拓集合理论构建了物元可拓评价模型,利用关联度函数量化了评价指标与评价标准间的关联程度,并运用群决策特征根法确定了组合权重,实现了主、客观赋权方法的融合。结果表明,该方法能有效地评价了不同时期的环境质量,利于比较,并为环境管理、规划决策提供了依据。

Taking the embankment reinforcement project in Kaifeng City for an example,extension matter element evaluation model is established with extension set theory.With the concept of correlation function,the relativity between evaluation indicators and their standard is measured.Group eigenvalue method is used to determine combination weight and it achieves the integration of subjectively and objectively weighting methods.The result reveals that the model can evaluate the environment quality in different periods effectively,which provides valuable reference for the related environment management and environment planning department to make decisions.