人工控制条件下水流速对香溪河库湾浮游植物影响的初步研究
A PRELIMINARY STUDY ON EFFECT OF ARTIFICIAL CONTROLLED FLOW VELOCITY ON PHYTOPLANKTON IN XIANGXI BAY
查看参考文献16篇
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文摘
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为了揭示三峡水库不同藻类对水流速度的响应,2008年8月,利用香溪河库湾原水进行了人工控制条件下水流速度对浮游植物生长和群落组成影响的研究。结果表明,在水温、光照及营养盐相同的条件下,水流条件对藻类的细胞密度和组成会产生显著的影响。单因素方差分析的S-N-K多重比较结果表明,在实验设定的流速范围内针杆藻(Synedrasp.)在高流速(0.139m/s)下的细胞密度显著高于其他流速组(p<0.05),相对密度最高;盘星藻(Pediastrumspp.)在中流速(0.075m/s)下的细胞密度显著高于其他各处理组(p<0.05);微囊藻(Microcystisspp.)各实验组间细胞密度无显著差异(p>0.05),但在低流速(0.046m/s)下的细胞密度和相对密度均高于其他各组;小环藻(Cyclotellasp.)细胞密度在水流动组间无显著差异(p>0.05),但都显著高于0m/s实验组的细胞密度(p<0.05)。 |
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其他语种文摘
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In order to understand the response of algae to flow velocity in Three Gorges Reservoir,a study of artificial controlled flow velocity influencing on algal growth and succession was investigated by employing the original water of Xiangxi Bay in 2008.Flow velocity was set to 0.046 m/s,0.075 m/s,0.139 m/s and the static group 0 m/s.The variation of flow velocity had different impacts on the algal growth.Revealed by S-N-K multiple comparison,the abundance of Synedra sp.under 0.139 m/s was significantly higher than any other treatment(p<0.05),and under which the relative abundance was the highest.For Pediastrum spp.,the most abundant treatment was 0.075 m/s.No significant difference was found among the four treatments in Microcystis spp.(p>0.05),but cell abundance and relative abundance under 0.046 m/s was higher.The abundance of Cyclotella sp.in water flow treatments was significantly higher than the static one(p<0.05),but there was no significant difference among flow treatments(p>0.05). |
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来源
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长江流域资源与环境
,2012,21(2):220-224 【核心库】
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关键词
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三峡水库
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香溪河库湾
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水流速
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浮游植物
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地址
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中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 湖北, 武汉, 430072
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1004-8227 |
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学科
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植物学 |
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基金
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国家973计划
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国家重大科技专项
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文献收藏号
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CSCD:4463109
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