地表水质灰关联评价中水环境质量系数的研究

分析和阐明地表水环境质量灰关联评价中关联度向量r中各分量的信息荷载,在满足定量、连续、分级的条件下构造了水环境质量系数C,C由首数水质级别数K和尾数水质差异E组成。水环境质量系数既能表示水质级别,又能准确区别同级水质差异。在应用特例中介绍了模糊级别的区分和级别跳跃现象。最后介绍了应用中注意的问题。

Study on Water Quality Coefficient in Grey Associated Analysis for Assessment of Surface Water Quality

By studying on grey associated analysis for assessment of surface water quality,the paper analyzes the part vector in association-degree vector r,and gives a explanation about the nature of information carried by them.It also constructs water quality coefficient C under the demands of Quantification,Continuity and Classification.C is made up of Head-water quallity grade number K and End-water quality difference number E.It is proved by the applied examination that water quality coefficient C can both indicate water quality grade and differentiate the quality of water in same grade.In applied examples,the paper differentiates the vague from those resemble grades and introduces the "grade jump".In the end,it points out the problems which should be paid attention to in apply.