Multi-grade fuzzy comprehensive evalation-grey relational preponderance analysis complex model of environmentalquali-ty

In this paper,the models of environmental quality assessment widely applied now have been analysed.On the basis of this,the multi-grade fuzzy comprehensive evalua-tion-grey relational preponderance analysis complex model of environmental quality assessment was established After such model is applied to the comprehensive assessment on the land-scape eco-environmental quality of Huangshan Mountain .some satisfactory results were achieved.