Combining Application of Gray Clustering and Analytic Hierarchy Process to Water Quality Assessment of Beiyunhe River

摘要

This paper combined gray clustering and analytic hierarchy process (AHP) to assess the water quality of Beiyuehe river.Used the improved gray clustering function and the "Overweight weighting method" in gray clustering analysis to determine the pollutants' weights and the AHP to determine the weights of cross-sections making the evaluation result tended to be more accurate.The overall water quality of Beiyunhe could meet the requirement of the water quality function district,but still needed more management in some areas.