| 淀山湖着生藻类群落结构与数量特征 |
| 摘要点击 1016 全文点击 1799 投稿时间：1998-12-04 |
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| 中文关键词 着生藻类 沉水植物 密度 生物量 淀山湖 |
| 英文关键词 periphytic algae submerged macrophytes density biomass Dianshan Lake |
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| 中文摘要 |
| 在1993-04～1997-06间对淀山湖5种沉水植物及人工基质上的着生藻类群落进行了研究。结果表明,沉水植物上着生藻类群落由37属39种藻类组成,其中硅藻门13属13种,绿藻门12属13种,蓝藻门6属7种。5种沉水植物上着生藻类群落密度和生物量,均以黑藻最高,金鱼藻次之,菹草居第3,人工基质(塑料板)介于金鱼藻和菹草之间;并于冬季达全年最高峰,夏季为全年最低。着生藻类生长与沉水植物生长间呈负相关,并限制了沉水植物的分布。 |
| 英文摘要 |
| The species composition and quantitative features of the periphytic algae communities from April,1993 to June,1997 in Dianshan Lake were reported.The periphytic algae found on submerged macrophytea consisted of 39 species belonging to 37 genera.Among them,there were 13 species and 13 genera of Bacillariphyta,13 species and 12 genera of Chlorophyta and 7 species and 6 genera of Cyanophyta.The average density and biomass of periphytic algae communities reached their maximum in winter and the minimum in summer,and declined from Hydrilla verticillata>Ceratophyllum demersum>Plastic flagging>Potamogeton crispus>Vallisneria asiatica,Pmalaianus.Periphytic algae could have an adverse effect on the growth rate of its macrophyte host and more important shading agents than phytoplankton. |
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