摘要
为深入了解湖泊水体理化因子的变化规律,为湖泊渔业和湖泊水质管理提供基础数据,于2007年夏季测定了武汉市梁子湖、斧头湖、柴泊湖、南湖和野芷湖5个养殖湖泊的TN、NH4+-N、NO2--N、NO3--N、TP、PO43--P、DO、pH、CODMn、WT、SD和EC,应用SPSS软件,对测定结果从事了主成份分析和聚类分析。主成份分析结果表明,3个主成份分别为营养环境因子(包括TN、NO2--N、NO3--N、TP、pH、CODMn和EC)、生存因子(DC)和铵吸收因子(NH4+-N)。Q型聚类结果表明,5个湖泊的13个点可聚为4大类,即第1类为9、10、11、12、13号点;第2类是1、2、4号点;第3类是5、6、7、8号点;第4类是3号点。可将5个湖泊分为3类,即斧头湖和梁子湖为一类,柴泊湖为一类,野芷湖和南湖为一类。这一结果是城市废水、生活污水和养殖生产所致。
In order to further understand the hydrochemical change rule of lake environment and provide fundamental data for lake fishery and lake water quality management, the author measured TN, NH4^＋-N, NO2^- -N, NO3^- -N, TP, PO4^3- -P, DO, p H, CODMo, WT, SD and EC of the five aquaculture lakes, namely, Liangzi Lake,Futou Lake,Chaipo Lake,Nanhu Lake and Yezhi Lake,in Wuhan City in the 2007 summer,and conducted Principal Component Analysis（PCA）and Cluster Analysis（CA）of the results by means of SPSS software. The PCA result shows that the three principal components are nutrient environmental factor（ineluding TN, NO2^-- -N, NO3^- -N, T, p H, CODMn and EC）, survival factor （DC） and ammonium absorption factor （NH4^＋-N）. The Q cluster result shows that the 13 points of the five lakes can be divided into four categories： first, point 9,10,11,12 and 13 ; second, point 1,2 and 4 ; third, point 5,6,7 and 8 ; fourth, point 3. And the five lakes can be divided into three categories.first, Futou Lake and Liangzi Lake; second,Chaipo Lake l third,Yezhi Lake and Nanhu Lake,which has been caused by urban waste water, domestic sewage and aquaculture production.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2009年第6期550-554,共5页
Resources and Environment in the Yangtze Basin
基金
湖北省科技厅科技攻关项目(2004S4496)
湖北省人事厅高层次人才项目资助
关键词
湖泊
理化指标
主成份分析
聚类分析
lake
physical and chemical indices
principal component analysis（PCA）
cluster analysis（CA）
