华阳河湖群和升金湖浮游植物群落结构的研究生态学专业论文.docxVIP

AbstractHuayang Abstract Huayang fiver-lake group and Shengiin Lake as a natural reserve what are Yangtze River-conncted lake．The phytoplankton community sructur and its impact fator resach is importance for biological diversity in natural reserve．In the present study,we examined species composition，the dominant species，density and the temporal and spatial distribution of the phytoplankton community to understand the phytoplankton community s仃．uctLlre characteristics from 20 1 4 in the Shengj in Lake and from 20 1 5 in the Huayang river-lake group．Pearson correlations and Redundancy analysis(RDA) method were used to analyze the main environmental factors affecting phytoplankton community structure． 1 A total of 1 83 species(with varietas and metatype)of phytoplankton be longing to 8 phyla and 84 genera were identified in the Huayang river·lake gr oup．Chlorophyta accounted for 45．60％of total number algae species，which had 83 species belonging to 34 genera．Bacillariophyta accounted for 23．63％of tota 1 number algae species，which had 30 species belonging to，14 genera．The phyt oplankton dominant species were Fragilaria capucina,Cyclotella meneghinian a,Asterionella Formosa,Melosira granulate，Melosira granulata var．angustissima, Gymnodinium aeruginosum，Oscillatoria chlorine,Merismopedia minima,Anabaena variabilis,Schroederia spiralis,Ankistrodesmus angustus,Pediastrum simplex,Crypto A total of 2 1 0 species of phytoplankton belonging to 8 phyla and 9 1 gene ra were identified in the shengj in Lake．Chlorophyta accounted for 4 1．20％of to tal number algae species，which had 89 species belonging to 36 genera．Bacillari ophyta accounted for 28．70％of total number algae species，which had 32 speci es belonging to 1 4 genera．The phytoplankton dominant species、Ⅳere Syne‘加 111 万方数据 华阳河湖群和升金湖浮游植物群落结构的研究a 华阳河湖群和升金湖浮游植物群落结构的研究 a ulna．Metosirn granulata var．angustissima，Cyclotella meneghiniana,Dinobryon bavaricum，Merismopedia minima，Chlamydomonas,Scenedesmus quadricauda,Chro omona