摘要
淀山湖属亚热带浅水湖泊,是上海市重要的水源地之一.为了解该湖浮游植物功能群的特征及其与环境因子的关系,于2015年1月至2016年12月逐月对浮游植物和环境因子进行调查分析.结果表明,淀山湖浮游植物可划分为26个功能群,其中15个功能群(B、C、D、F、G、H1、J、Lo、M、MP、P、W1、W2、X1和X2)为该湖的优势功能群.2015~2016年淀山湖优势浮游植物功能群呈现明显的周年演替特征,2015年为D/C→Lo/C/MP→MP/J/P/W1→P,2016年为P→W2/Lo→W2/G/M/H1→P.利用典范对应分析(CCA)探讨淀山湖浮游植物功能群与环境因子间的相互关系,结果表明水位波动(WLF)、溶解氧(DO)、水温(WT)、总磷(TP)、电导率(EC)、透明度(SD)和总氮(TN)是影响淀山湖浮游植物功能群的主要环境因子,其中氮磷营养盐和水位波动对淀山湖浮游植物功能群的影响应该引起关注.
Dianshan Lake,a subtropical shallow lake,is one of the main drinking water sources of Shanghai City. In order to explore the characteristics of phytoplankton functional groups（ PFGs） and their relationships with environmental factors in Dianshan Lake,phytoplankton and water samples collected from January 2015 to December 2016 were characterized. Results suggested that there were26 PFGs during our study period. The biomasses of 15 PFGs（ B,C,D,F,G,H1,J,Lo,M,MP,P,W1,W2,X1,and X2） were dominant and had marked annual succession patterns： D/C/→Lo/C/MP/→MP/J/P/W1/→P in 2015 and P/→W2/Lo/→W2/G/M/H1/→P in 2016. To elucidate the relationships of PFGs with the environmental factors,canonical correspondence analysis（ CCA） was conducted. Results showed that water level fluctuation（ WLF）,dissolved oxygen（ DO）,water temperature（ WT）,total phosphorus（ TP）,electrical conductivity（ EC）,transparency（ SD）,and total nitrogen（ TN） were the main impact factors associated with the composition variations of PFGs in Dianshan Lake. From this study,it is proposed that the effects of nitrogen,phosphorus,and WLF on the PFGs in Dianshan Lake should be paid more attention.
作者
杨丽
张玮
尚光霞
张军毅
王丽卿
魏华
YANG Li;ZHANG Wei;SHANG Guang-xia;ZHANG Jun-yi;WANG Li-qing;WEI Hua(Centre for Research on Environmental Ecology and Fish Nutrient （CREEFN） of the Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China;Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China;National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;Wuxi Environmental Monitoring Centre Station, Wuxi 214023, China)
出处
《环境科学》
EI
CAS
CSCD
北大核心
2018年第7期3158-3167,共10页
Environmental Science
基金
上海市水务局淀山湖健康评估项目
上海市优秀技术带头人计划项目(15XD1522900)
关键词
浮游植物
功能群
淀山湖
演替
环境因子
phytoplankton
functional groups
Dianshan Lake
succession characteristics
environmental factor
