摘要
针对传统模糊综合评价中"权重赋值"、"模糊算子"及"综合评价原则"三个方面的不足,引入组合赋权法、相乘相加模糊算子以及置信度准则,提出了一种基于熵权的模糊层次评价法。以上海市滴水湖2018年12个月的水质监测数据为例,与传统模糊综合评价法评价结果进行对比。结果表明:滴水湖水质状况符合整体Ⅲ~Ⅳ类且局部Ⅱ类的规划中远期水质目标,满足城市一般工业用水和人类非直接接触娱乐用水要求,评价结果与实际情况相符;与传统模糊综合评价法相比,基于熵权的模糊层次评价法可以更好地辨识细微水质差别,权重计算与评价结果更为合理。
In order to make up the shortcomings of traditional fuzzy comprehensive evaluation in weight assignment,fuzzy algorithm and comprehensive evaluation principle,an entropy-weight-based fuzzy hierarchical evaluation method was proposed which includes Combination Weighing Method,multiply and add fuzzy operators and the degree of confidence.In addition,Shanghai Dishui lake was taken as an example and its 12 months’ water quality monitoring data in 2018 was used to compare with the traditional fuzzy comprehensive evaluation.The results show that water quality of Dishui lake conforms to its longterm planning target-Ⅲ ~ Ⅳ class overall and Ⅱ class in some areas,and meets the demand of urban common process water and recreational water for human non-direct contact,which coincides with the actual situation.Compared with the traditional fuzzy comprehensive evaluation method,the entropyweight-based fuzzy hierarchical evaluation method can identify subtler change of water quality,and its weight calculation as well as evaluation results were more reasonable and reliable.
作者
周灿
廖振良
孔令婷
钱真
ZHOU Can;LIAO Zhenliang;KONG Lingting;QIAN Zhen(College of Environmental Science and Engineering,Tongji University,Shanghai 200091,China;Institute of Water Planning and Design,Shanghai 200233,China)
出处
《能源环境保护》
2020年第1期82-87,共6页
Energy Environmental Protection
基金
国家重点研发计划政府间国际科技创新合作重点专项(2016YFE0123300)
国家重点研发计划(2017YFC0405400)
国家自然科学基金项目(No.51578396
51778451)
关键词
传统模糊综合评价法
层次分析法
熵权
置信度
Traditional fuzzy comprehensive evaluation method
Analytic hierarchy process
Entropy weight
Degree of confidence
