灰色聚类法在东昌湖水质富营养化评价中的应用  

APPLICATION OF GREY CLUSTERING ANALYSIS IN DONGCHANGHU

作　　者：李泽利[1] 马启敏[1] 徐绍箐[1] 周华[1] 

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100

出　　处：《海洋湖沼通报》2011年第3期139-144,共6页Transactions of Oceanology and Limnology

基　　金：典型北方缺水城市湖泊水质水量保障与生境改善技术(2008ZX07106-003)资助

摘　　要：根据东昌湖2009年4月的现场监测数据,采用灰色聚类法,选用叶绿素a、总磷、总氮、透明度和COD为聚类指标,对东昌湖水体进行富营养化评价,结果显示:2009年4月,东昌湖水体CODMn平均值为4.49mg/L,属于地表水Ⅲ类水质,TP平均值为0.052mg/L,属于Ⅳ类水质;TN平均值为2.27mg/L,属于劣Ⅴ类水质;灰色聚类评价显示湖水处于富营养状态,东部湖区为富营养级别,西部湖区为中富营养级别。与近几年东昌湖富营养化研究结果比较得出东昌湖已呈持续的富营养化状态,特别是TN,TP污染严重。Based on the on-site water quality data of Dongchanghu in April,2009,Chla,TP,TN,SD,and COD were selected for evaluating eutrophication of the lake by use of grey clustering method.The average value of CODMn,TP and TN in April,2009 were 4.49 mg/L,0.052 mg/L and 2.27 mg/L,which attained the standards for Grade III,Grade Ⅳ,and GradeⅤsurface water quality,respectively.The result of grey clustering analysis showed that the lake water was eutrophication,the eastern part of the lake was in Eutrophic level and the western part of the lake was in upper-mesotrophic level,comparatively.The study showed that Dongchanghu was at the level of eutrophication in recent years,especially TN and TP were polluted severely.

关 键 词：灰色聚类法 富营养化 东昌湖 

分 类 号：X824[环境科学与工程—环境工程]