摘要
针对地表水水质评价中的模糊性以及主观权重法确定各评价指标权重的不足,在可变模糊集理论的基础上,提出了组合权重可变模糊模型。模型采用熵权法确定客观权重,有序二元比较法确定主观权重,然后将主、客观权重结合求得组合权重。将模型应用到大沽河的水质评价中,通过与模糊综合评价法和灰色关联分析法比较,得出新模型在地表水水质评价上是可行的,其评价结果具有较强的合理性,从而为在其他领域的应用提供借鉴。
To deal with the fuzziness of water quality evaluation and the subjectivity of weights,this paper establishes a variable fuzzy model based on combined weight.The objective weight is determined by the entropy method and the subjective weight determined by the ordered binary comparative method.This model uses the combined weights based on the objective and subjective weights.Taking the evaluation of water quality of the Dagu River as an example,this paper uses fuzzy comprehensive appraisal,gray connection analysis and this new model to evaluate water quality.The comparative results show that this new model is more reasonable and the evaluation results arefeasible.This model can also be used in other relevant fields.
出处
《中国农村水利水电》
北大核心
2011年第10期82-86,共5页
China Rural Water and Hydropower
基金
水利部<节水型社会建设>专题
全国城市污水处理回用调查与发展规划研究(水综节水[2009]20号)
关键词
水质评价
熵
有序二元比较法
权重
可变模糊集理论
evaluation of water quality
entropy
ordered binary comparative method
weight
variable fuzzy theory
