基于指标概率分布的富营养化评价

Eutrophication assessment based on indicator frequency distribution

解决富营养化问题一直是我国水环境领域最为艰巨的任务之一。本文将水文频率分析引入到富营养化评价中,将监测指标与评价标准一同采用经验频率进行归一化,采用熵权模型计算权重,有机结合后得到富营养化评价结果。根据实例评价结果,巢湖富营养化程度在不断波动中,总体处于富营养化程度。

Eutrophication problem has always been one of the most difficult tasks in China's water environment management.Hydrological frequency analysis was brought into eutrophication assessment in this paper.Monitoring indicators and evaluation criteria were normalized together with the empirical frequency.The assessment result is based on the combination of entropy weight and empirical frequency.According to eutrophication assessment in Chaohu Lake using this method,Chaohu Lake is classified in heavy eutrophication.