区域水环境质量灰关联度评价方法的研究

Grey Associative A nalvsis Method Used for WaterQuality Asscssment in A Region

本文针对区域多级河流断面的水质评价和综合评价问题，提出一种灰关联分析的评价方法。它的特点或是从水质标准的灰关联序关系上评价水环境质量，计算方法简单，而且结论符合实际。通过与现行的方法比较，说明它的实用性。

In view of the problem of water quality assessment for both individual index and muitiple in-dexes in a nver system or a region.this ptiper prcsents Grey Associative Method (GAM)which is character-ized by making the watcr quality assessment in terms of the order reiation of grey associative analysis representedby a distance measurement between monitored data and water quality criteria The membership degree of asm-ples belonging to different water quality criteria in both individual mdex and multiple indexes assessment can beidentified.By comparison with the available assessment mentods. it is found that the grey associative analysisapproach is more workable and practical