生态环境学报2012，Vol.21Issue(1)：107-117,11.
南亚热带两座不同水文动态的水库浮游植物的功能类群演替比较
Comparative analysis of succession of the phytoplankton functional groups in two reservoirs with different hydrodynamics in Southern China
摘要
Abstract
Nanping and Zhuxiandong reservoirs are the main reservoirs supplying drinking water to Zhuhai and Macau cities. Phytoplankton functional groups which could be screened by codon were identified monthly according to Padisak (2009) to make a comparative analysis of succession of the phytoplankton functional groups in the two reservoirs from April, 2010 to March, 2011. Hydrological, water quality and habitat characteristics of phytoplankton were considered to reveal the driving forces in selecting phytoplankton functional groups. The results showed that: Phytoplankton dynamics in Nanping reservoir exhibited a remarkable temporal heterogeneity. SI functional group (Limnothrix sp., Pseudanabaena sp.) and group Y (Glenodinium sp.) co-dominated during June and July in conditions of high water-column stability, which was the typical pattern in the seasonal dynamics of the phytoplankton functional groups in Nanping reservoir. C+D+P functional groups (Cyclotella sp., Synedra sp. And Aulacoseira granulate) became more important during dry season in Nanping reservoir, while in Zhuxiandong reservoir they exhibited high relative biomasses in the whole year, probably an outcome of short hydraulic retention time favouring those tolerant of water flush. Multivariate analysis (PCA and RDA) indicated the important role of hydraulic retention time, rainfall, dissolved phosphorus in affecting phytoplankton succession in Nanping reservoir, and of hydraulic retention time and rainfall in Zhuxiandong reservoir. Hydraulic retention time was responsible in driving different seasonal succession of the phytoplankton functional groups between the two reservoirs.关键词
浮游植物/功能类群/水力滞留时间/南亚热带/水库Key words
phytoplankton/functional groups/hydraulic retention time/south subtropical area/reservoir分类
资源环境引用本文复制引用
张怡,胡韧,肖利娟,韩博平..南亚热带两座不同水文动态的水库浮游植物的功能类群演替比较[J].生态环境学报,2012,21(1):107-117,11.基金项目
广东省科技攻关项目(2009B050200001) （2009B050200001）
