湖泊科学2011，Vol.23Issue(2)：239-245,7.
长江中游湖泊沿岸带的底栖藻类群落结构特征
Community structure characters of benthic algae community on littoral zone of the lakes in the middle reaches of Yangtze River
摘要
Abstract
Species composition, cell density, Shannon-Weaver diversity index, community structures of benthic diatoms and standing crops of benthic algae were investigated in the littoral zone of 21 shallow lakes in Hubei Province, and the water quality was evaluated combined with chemical parameters. The standing crops( Chl. a) of benthic algae and the density of benthic diatoms, with the range of 1.01 -40. 82μg/cm2 and 0.09 × 106 - 14.20 × 106 cells/cm2, respectively, exhibited higher values in eutrophic lakes during the studying period. Among the 181 taxa (variety) of benthic diatom observed, Achnanthes minutissima distributed widely and was absolutely dominant or sub-dominant species in mesotrophic and meso-eutrophic lakes. The results of two-way indicator species analysis and detrended correspondence analysis catalogued these lakes into three groups: the dominant species were taxa of Achnanthes genus in meso-eutrophic lakes of the first group; several dominant species existed at the same time in mesotrophic lake of the second group; the third group were the city eutrophic lakes. Nanhu was hyper-eutrophic lake, Gomphonema parvulum was dominant indictor(43％ of relative abundance).关键词
底柄藻类/群落结构/现存量/硅藻/优势种/沿岸带/长江中游Key words
Benthic algae/ community structure/ standing crops/ diatom/ dominant species/ littoral zone/ middle reaches of Yangtze River引用本文复制引用
裴国凤,刘国祥..长江中游湖泊沿岸带的底栖藻类群落结构特征[J].湖泊科学,2011,23(2):239-245,7.基金项目
国家自然科学基金项目(30970550)资助. （30970550）
