摘要
对武汉市15个浅水湖泊在不同水期的浮游植物进行调查,同时监测相应的环境因子指标;以蓝藻物种多度及生物量数据和9个环境因子进行了典范对应分析(CCA)。物种鉴定结果表明武汉市湖泊蓝藻的常见属有微囊藻(Microcystis)、螺旋藻(Spirulina)、平裂藻(Merismopedia)和色球藻(Chroococcus)等。CCA分析结果表明水温、水深、pH、浮游动物生物量是影响城市浅水小型湖泊蓝藻种类组成及分布的主要因子,同时绿藻生物量等对蓝藻组成分布也有一定的影响;由于武汉市浅水湖泊的高营养盐浓度,总磷及氮磷比不再是蓝藻生长的限制因子。
The plankton communities of 15 shallow lakes in Wuhan were measured during different periods in this study, as well as the environmental factors. The Canonical correspondence analysis （CCA） was performed between the data of environmental factors and the data of biomass species, density of Cyanophyta, respectively. The results of identified species showed that the most common genera were Microcystis, Spirulina, Merismopedia and Chroococcus etc. Results of CCA showed that the temperature of water, depth, pH and biomass of zooplankton were the dominating factors for the growth and distribution of Cyanophyta, and the biomass of Chlorophyta influenced the distribution of Cyanophyta slightly.
出处
《生态环境》
CSCD
北大核心
2008年第2期515-519,共5页
Ecology and Environmnet
关键词
水华
蓝藻分布
环境因子
典范对应分析
algae bloom
composition of Cyanophyta
environmental factors
Canonical correspondence analysis
