洪湖湖泊水质调查与富营养化研究

Researchon Water Quality and Eutrophication of Honghu Lake

2019年7月,对洪湖进行了水质监测调查。依据实测数据,选择TP、TN、CODMn3个指标因子作为研究对象,运用综合营养状态指数法对洪湖的富营养化状态进行评价;并根据各因子在综合营养状态指数中所占比重和地表水水质标准,对其作比较分析,结果表明洪湖各监测点的综合营养状态指数在47.43~66.58,平均值为56.50,属于轻度富营养状态。各因子对洪湖富营养化的贡献大致相同,即TP为首、TN次之、CODMn最后。

In July 2019,water quality of Hong Lake was monitored.On the basis of the monitored data,three monitoring indicators of TP,TN and CODMn were selected as research objects.Comprehensive eutrophication status index method was used to evaluate the level of eutrophication in Honghu Lake.According to the analysis of the proportion of each factor in method TLI and the Environmental Quality Standard for Surface Water,all the factors were compared.Results showed that the comprehensive eutrophication status index of Honghu Lake was between 47.63 and 66.58,the average was 56.50,which was mild eutrophication level.Contributions of each factor to the eutrophication of Honghu Lake were roughly the same in method TLI,namely,TP was dominated,followed by TN,CODMn in a descending order.