生态科学2018，Vol.37Issue(6)：75-82,8.DOI:10.14108/j.cnki.1008-8873.2018.06.010
流速对不同浮游藻类的生长影响研究
The effect of flow velocity on the growth of different phytoplankton
摘要
Abstract
To study the effect of flow velocity on the growth of different phytoplankton, a simulation experiment was conducted in the annular flume of organic glass using Microcystis aeruginosa, Scenedesmus obliquus and Cyclotella sp., which were cultured in laboratory using surface water from the Huizhou reach of Dongjiang River in March 2015.The effects of different flow velocity on the algal cell density, the concentration of chlorophyll a, the maximum specific growth rate and chlorophyll fluorescence parameter (Fv/Fm) were studied by adjusting the flow rate of water.The results showed that the physiological and biochemical characteristics varied at different flow rates.The growth of Microcystis aeruginosa was slow with all flow velocity conditions, the growth of Scenedesmus obliquus and Cyclotella sp.was fast at low flow rate (<0.075 m·s–1) and increased with the increase of flow velocity.However, under the condition of high velocity (<0.075m·s–1), the growth of algae was inhibited with the increase of flow velocity.The different continuous flow may directly induce the changes of the cell density and physiological indicators of phytoplankton, indicating the control of eutrophication and algae bloom by adjusting flow velocity in Dongjiang water.关键词
东江/流速/浮游藻类/富营养化/水华Key words
Dongjiang River/flow velocity/phytoplankton/eutrophication/algal bloom分类
资源环境引用本文复制引用
周静,苟婷,张洛红,蓝郁,马千里,梁荣昌,赵学敏..流速对不同浮游藻类的生长影响研究[J].生态科学,2018,37(6):75-82,8.基金项目
广州市科技计划产学研协同创新重大专项(201704030110) （201704030110）
中央级公益性科研院所基本科研业务费专项(PM-zx703-201602-048) （PM-zx703-201602-048）
国家水体污染控制与治理科技重大专项(2014ZX07206-005-04)联合资助 （2014ZX07206-005-04）
