模糊数学法在晋江水质评价中的应用研究

摘要

利用模糊数学综合评价法,选取溶解氧(DO)、高锰酸钾指数(CODMn)、氨氮(NH3-N)、总磷(TP)、六价铬[Cr(Ⅵ)]做为指标对2010年-2014年泉州湾河口湿地晋江流域石砻断面进行水质综合评价与分析,并将评价结果与综合污染指数法的评价结果进行对比.结果显示:在模糊数学评价法中2010、2012、2014年均为Ⅱ类水质,2011和2013年为Ⅰ类水质;评价结果与综合污染指数法的基本一致.表明2010年-2014年晋江流域石砻断面水质良好,模糊数学综合法在水质评价中可行.%By using fuzzy mathematics comprehensive evaluation method,the quality of Jinjiang river stone in Quanzhou bay estuarine wetland from 2010 to 2014 was evaluated which selected the DO,CODMn,NH3-N,TP,Cr(Ⅵ) for evaluation.The assessment was also performed by means of comprehensive pollution index method for the comparison.It is clear that the quality from the fuzzy mathematical evaluation method is Ⅱ grade in 2010,2012,2014 andⅠgrade for 2011 and 2013.The results from these two approaches are basically identical.This suggests that the Jinjiang River have good water quality,and the fuzzy mathematics is a good approach for assessment of the water quality.