CAJ | 학술논문

应用改进的模糊层次分析法对渭河干流陕西段2014年各监测点5个指标进行水污染程度权重和隶属度综合分析，结果显示，渭河陕西段DO达到Ⅱ类水质标准，CODMn为Ⅲ类水质标准，NH3－N达到I类水质标准，TP和TN均为Ⅴ类水质．评价单因子污染指数由大到小分别为TN＞TP＞CODMn＞DO＞NH3－N．权重分析显示：总磷（TP）和总氮（TN）的权重均在40％以上，对水质的影响程度最大．分析表明：通过长期以来对渭河陕西段水质污染的防治，水体环境有了明显改善，对比2002年数据，综合污染指数下降了79．1％，氨氮、DO和CODMn均在Ⅲ类水质标准以内，尤其是CODMn和NH3－N对比2010年数据，下降幅度分别达到85．1％和95．6％，总磷和总氮浓度远远低于往年．
응용개진적모호층차분석법대위하간류협서단2014년각감측점5개지표진행수오염정도권중화대속도종합분석，결과현시，위하협서단DO체도Ⅱ류수질표준，CODMn위Ⅲ류수질표준，NH3－N체도I류수질표준，TP화TN균위Ⅴ류수질．평개단인자오염지수유대도소분별위TN＞TP＞CODMn＞DO＞NH3－N．권중분석현시：총린（TP）화총담（TN）적권중균재40％이상，대수질적영향정도최대．분석표명：통과장기이래대위하협서단수질오염적방치，수체배경유료명현개선，대비2002년수거，종합오염지수하강료79．1％，안담、DO화CODMn균재Ⅲ류수질표준이내，우기시CODMn화NH3－N대비2010년수거，하강폭도분별체도85．1％화95．6％，총린화총담농도원원저우왕년．
The five indexes of each monitoring point inShaanxi section of the Weihe River in 2014 were analyzed by the com?prehensive analysis of the water pollution degree of weight and membership degree with the application of the improved fuzzy analytic hierarchy process. The result showed that the DO in Shaanxi section of the Weihe River were within class II of water quality stand?ards, the CODMn was within class III and the NH3-N was within class I, TN and TP were class V of water quality. The evaluation of single factor pollution index from small to large order was, respectively, TN, TP, CODMn, DO, NH3-N. Weight analysis showed that the total phosphorus (TP) and total nitrogen (TN) weights were all over 40%, which had the largest degree of impact on water quality. Analysis showed that the aquatic environment had improved significantly though the long-term prevention and treatment ai?ming at water pollution in Shaanxi section of the Weihe River in 2014, compared with the data of 2002, comprehensive pollution in?dex fell by 79.1%, the ammonia nitrogen, DO and CODMn were within class III of water quality standard, especially CODMn and NH3-N decreased respectively by 85.1% and 95.6%, total phosphorus and total nitrogen concentration is much lower than usual.