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《Environmental Engineering》 2002-04
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A GREY ASSESSMENT MODEL OF REGIONAL ECO-ENVIRONMENT QUALITY AND ITS APPLICATION

Hao Yonghong et al  
In this paper,a gray assessment method is applied to the regional eco environment quality evaluation.Values of assessment indexes are divided into three classifications——high,medium and low.The weight coefficients that objects belong to the classifications are calculated.Weight sums are calculated to weight coefficients that have the same index category.Then comprehensive weight coefficient matrix of objects is acquired.According to the matrix,triangular coordinates figure is charted and the regional eco environment quality ranks are classified.This method can avoid the problem of the index method.So the accuracy of the assessment is improved.Lastly,this method is applied to the regional eco environment quality assessment in China.Better results are acheived.
【Fund】: 山西省青年基金资助项目 ;; 太原市科技启明星计划资助项目
【CateGory Index】: X820.2
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