灰色关联分析法在水质评价中的应用

提出了等标分极标准的概念,进而利用等标分级标准和待评价水质样本各组分等标污染指数作灰色关联分析,得到一组待评价水质样本对于各级等标分极标准的关联度,按关联度最大将待评价的水质样本归入相应的水质级别中,用该方法对新疆某水库水质进行了评价,通过与模糊综合评判法和灰色聚类法评价结果对比发现:用灰色关联分析法评价水质,既具有模糊综合评判法和灰色聚类法的优点,又弥补了其不完善之处,评价结果比较符合实际状况,且更具有可比性。

THE GREY CORRELATIVE ANALYSIS METHOD TO EVALUATE WATER QUALITY

The concept of equivalence ciassification criterion is introduced first. This criterion is used to perform the grey correlative analysis. A group of correlation degree of these samples are compatible with this criterion. The water quality samples can be assigned to right classification according to the maximum correlation degree. A case study has been presented to demonstrate how the method to be applied. In comparison with fuzzy mathematics method and grey classification method, the grey correlative analysis method not only retains the advantage of fuzzy mathematics method and grey classification method, but also supplements those imperfections. This method can obtain more satisfactory results.