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湖泊科学  2011 

贵州百花湖麦西河河口浮游植物群落结构及与环境因子关系

DOI: 10.18307/2011.0418

Keywords: 浮游植物,环境因子,典范对应分析,河口,水库

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Abstract:

2009年7月至2010年6月,以每月一次的频率对百花湖(水库)麦西河河口浮游植物群落结构和环境因子进行调查.监测到浮游植物66种(属),浮游植物主要由绿藻、硅藻和蓝藻组成,夏秋季湖泊假鱼腥藻(Pseudanabaenalimnetica)为优势浮游植物,而冬春季梅尼小环藻(Cyclotellameneghiniana)为主要优势藻.浮游植物丰度在1.17×104-3.35×107cells/L之间,2010年4月最低,2009年7月最高,浮游植物种群在4-9月主要由蓝藻组成,冬季由硅藻和甲藻组成.运用典型对应分析研究结果表明:温度是影响麦西河河口浮游植物群落结构动态变化的最主要环境因子,其次为营养盐;蓝藻的大部分种类和裸藻受水温和浊度等影响较大,而硅藻和绿藻的大部分种类受氮磷营养盐浓度影响较大。

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