基于改进的模糊综合评价法对黄州区遗爱湖的水质研究

Investigation of Yiai Lake in Huangzhou District Based on the Improved Fuzzy Comprehensive Evaluation Method

景观水体对一个城市的生态环境起着至关重要的作用,遗爱湖作为黄州区景观水体的典型代表,其水质状况备受各界关注,基于此,笔者对黄州区遗爱湖进行了水样采集和检测,针对检测的数据,采用改进的模糊综合评价法和熵值法的组合应用对水质类别进行评定。结果表明:影响遗爱湖水质的主要是BODMn、NH3-N、DO这三项指标;除监测点G以外,其他10个监测点的水质状况均不符合要求。针对结果,分析发现遗爱湖水质污染主要与有机污染物含量过大、生活用水的大量排放以及水体自净能力降低等原因有关,并在此基础上进行总结与展望。

Landscape water plays an important role in the ecological environment of a city.As a typical landscape water in Huangzhou,water quality of Yiai Lake has attracted the attention of all authorities.Because of this,the author carried out the sample collection and detection of the Yiai Lake District of Huangzhou.According to the data,the author makes use of the combined application of improved fuzzy evaluation method and entropy method to evaluate the water quality.The results show that what influences the water quality most of Yiai lake is BODMn,NH 3-N,DO.Besides the monitoring point G,the other 10 monitoring points of the water quality conditions do not meet the requirements.According to the results,we find out that there are three reasons for the water pollution in Yiai lake,that is,large organic pollutants,the emission of living water and the decreased water purification capacity.Based on the analysis,we have a conclusion and prospect.