基于模糊综合评价法的太泊湖水环境质量评价

The Water Quality Evaluation of Taibo Lake Based on Fuzzy Comprehensive Evaluation Method

根据2013年5月～2014年3月太泊湖7个重要断面水质周年实际监测数据,采用模糊综合评价法,确定了5个指标（DO、CODMn、NH3-N、TN、TP）作为评价因子,建立评价矩阵,计算出影响因子的权重,最后对太泊湖水质状况进行综合评价.评价结果表明,太泊湖各监测月份水质存在一定差异,其水质总体状况为Ⅱ类偏向Ⅲ类水,其主要污染物为无机氮和无机磷.

Based on the monitoring water quality data at seven important cross-section of Taibo Lake during May in 2013 to March in 2014,using fuzzy comprehensive evaluation method,five evaluation factors,i.e.,dissolved oxygen,permanganate value,ammonia nitrogen,total nitrogen and total phosphorus,an assessing matrix was built,weights of the affecting factors were calculated,and finally grades of the water quality was evaluated.The results showed that water quality of Taibo Lake exists differences among months,generally at grade Ⅱor Ⅲ.The main pollutants are inorganic nitrogen and inorganic phosphorus.