%0 Journal Article
%T Studies on Relationship of Phytoplankton and Water Environmental Factors in Shahu Lake<br>宁夏沙湖浮游植物与水环境因子关系的研究
%A QIU Xiao-cong
%A ZHAO Hong-xue
%A SUN Xiao-xue
%A <br>邱小琮
%A 赵红雪
%A 孙晓雪
%J 环境科学
%D 2012
%I 
%X Analysis approaches of correlation,multiple stepwise regression and canonical correspondence analysis were employed between phytoplankton and water environmental factors in ShaHu Lake based on the data from Apr. 2009 to Jan. 2010. The results showed that the correlation between phytoplankton density, phytoplankton biomass, chlorophyll-a and water temperature(WT), total nitrogen (TN), total phosphorus(TP), potassium permanganate index,5 days biochemical oxygen demand(BOD5) was positive, and phytoplankton density, phytoplankton biomass, chlorophyll-a and Secchi-depth (SD) was negatively correlated. Followed by the importance of environmental factors which affected phytoplankton density in Shahu Lake ranged as follows: WT, potassium permanganate index, SD, BOD5, TP, TN. Those affected phytoplankton biomass ranged as follows: WT,TP, potassium permanganate index,SD,TN. Those affected on chlorophyll-a ranged as follows: potassium permanganate index,WT,SD,TP,TN,BOD5.CCA result showed that 16 species of phytoplankton were divided into 3 groups which had the obvious seasonal distribution characteristics in Shahu Lake. SD, potassium permanganate index,WT, TN, TP were the main water environmental factors correlated with the distribution of phytoplankton community of Shahu Lake.
%K Shahu Lake
%K phytoplankton density
%K phytoplankton biomass
%K chlorophyll-a
%K correlation analysis
%K multiple stepwise regression analysis
%K canonical correspondence analysis<br>沙湖
%K 浮游植物密度
%K 浮游植物生物量
%K 叶绿素a
%K 相关分析
%K 多元逐步回归分析
%K 典范对应分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=470342632029DB6A6CA64BEC11FDF45A&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=D53D369D01F50334&eid=4A24A5C2D1FF5022&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=29