Fuzzy Comprehensive Water Quality Assessment of Tuotuo River Basin Based on Game Theory Combination Weighting
From June to September 2021,six monitoring sites were set up on six major rivers in Tuotuo Riv-er basin,and 23 water quality indicators were monitored and evaluated.Results showed that 10 indicators were detectable,and 13 indicators were undetected.The water quality was basically better than Class Ⅱ quali-ty standards for surface water.According to water quality monitoring data,principal component analysis and cor-relation analysis were used to establish an evaluate factor subset.Based on game theory,the indicator weights de-termined by entropy weight method and improved analytic hierarchy process were optimized and combined.The water quality was evaluated by constructing a fuzzy water quality evaluation model based on game theory combina-tion weighting,and graded by comprehensive evalua-tion index.The results showed that permanganate in-dex(IMn),five-day biochemical oxygen demand(BOD5),total phosphorus(TP)and ammonia nitro-gen(NH3-N)were the main influencing factors.From June to September 2021,the water quality of Tuotuo River basin was good,and the fuzzy compre-hensive evaluation results of the six rivers were all be-tween Class Ⅰ and Class Ⅱ quality standards for surface water.
Water qualityGame theoryFuzzy comprehensive evaluationTuotuo River basin
万方数据
维普
