基于变权重的水质综合评价体系

提出一套全新的水质综合评价体系——变权重水质综合评价体系。该变权重水质综合评价体系包括基于百分制的单因子评价方法、基于水质数据的动态因子权重确定方法以及两者结合形成的综合水质评价法。采用该评价体系对江苏中部某湖泊自动化水质监测站的水质监测数据进行单因子评价、因子权重计算以及综合评价,并对评价结果进行相关性分析。结果表明,变权重综合水质评价体系既可以突出某因子剧烈变化对评价结果的直接影响,又能全面反映综合水质状况,适用于评价高频率水质监测数据样本。

Study on the comprehensive evaluating system of water quality based on variable weight

A new comprehensive evaluating system of water quality has been proposed based on the variable weight, which includes a single-factor evaluating method based on percentile system, a determination method for the dynamic factor of weight based on water quality data, and an integrated evaluating method of water quality. This evaluation system is used to carry out the single-factor evaluation, the factor weight calculation and the comprehensive evaluation on the water quality of some stations in Jiangsu province. After that, the correlation analysis on the evaluated results has also been conducted. The results show that the evaluating system of water quality based on variable weight is very suitable for the evaluation of high-frequent monitoring data for the water quality, which not only highlights the direct influence of dramatically changing factor on the evaluated results but also comprehensively reflects the integrated water quality condition.