摘要
根据熵权法确定评价指标权重,利用物元分析方法对运河杭州段底泥污染进行综合评价,评价结果与密切值法、属性识别法进行对比。结果表明,基于熵权的物元分析法的评价结果与密切值法的评价结果基本一致,与属性识别法的评价结果存有差异。通过分析各评价指标在底泥各层的污染情况及对底泥污染的综合影响,说明基于熵权的物元分析法进行底泥污染评价是合理可行的,且评价结果直观、准确可靠。同时本研究为底泥污染类型评价提供了新的思路和方法。
According to entropy weight method, the weight of evaluation index is determined. The method of matter element analysis is used to comprehensively evaluate sediment pollution in Hangzhou section of canal, and the results are compared with osculating value method and attribute identification method. The results show that it is reasonable and feasible to evaluate sediment pollution by entropy weight matter element analysis model, and the result is more accurate. At the same time, this study provides new ideas and methods for evaluation of sediment pollution types.
出处
《环境研究与监测》
2017年第3期52-55,共4页
Environmental Research and Monitoring
关键词
物元分析
熵权
关联函数
底泥污染
评价
Matter element analysis
entropy weight
correlation function
sediment pollution
e-valuation
