CAJ | 학술논문

采用野外调查的方法，结合多维尺度分析（ MDS），研究了小鹤立河水库及上游河流春季浮游植物群落结构特征。经鉴定，调查区域内共有浮游植物6门60种，均以硅藻和绿藻为主，其中河流系统以硅藻为主（59．09％）；水库系统以绿藻为主（44．74％）。水库浮游植物丰度（4878．5×104个/L）大于河流丰度（319．4×104个/L），水库生物量（2．67 mg/L）小于河流生物量（2．86 mg/L）。水库浮游植物优势种细小隐球藻（Aphanocapsa elachista）细胞数量多而个体很小。 TLI综合营养指数分析表明，小鹤立河流域水质在贫、中营养之间。对浮游植物群落结构的多维（ MDS）分析结果显示，水库与其上游河流系统浮游植物群落结构差异显著。
채용야외조사적방법，결합다유척도분석（ MDS），연구료소학립하수고급상유하류춘계부유식물군락결구특정。경감정，조사구역내공유부유식물6문60충，균이규조화록조위주，기중하류계통이규조위주（59．09％）；수고계통이록조위주（44．74％）。수고부유식물봉도（4878．5×104개/L）대우하류봉도（319．4×104개/L），수고생물량（2．67 mg/L）소우하류생물량（2．86 mg/L）。수고부유식물우세충세소은구조（Aphanocapsa elachista）세포수량다이개체흔소。 TLI종합영양지수분석표명，소학립하류역수질재빈、중영양지간。대부유식물군락결구적다유（ MDS）분석결과현시，수고여기상유하류계통부유식물군락결구차이현저。
An investigation on the phytoplankton was conducted in Xiaoheli River Resesvor and its upstream rivers from 12 sam-ple stations with 60 species belonging to 6 divisions in spring, 2012.Bacillariophyta accounted for most with the ratio of 59.09%in the reservoir, while Chlorophyta accounted for the most with the ratio of 44.74%in the river.Average abun-dance of different sampling sites in reservoir (4 878.5×104ind/L) is higher than that in the river (319.4×104ind/L). Meanwhile, average biomass of different sampling sites in reservoir (2.67 mg/L) is smaller than that in the river (2.86 mg/L).Dominant specie is Aphanocaspsa elachista existing only in the reservoir.By TLI, all sampling stations are Oligo-tropher-Mesotropher.By many-dimensions (MDS) analysis, there are many differences in community structure of phyto-plankton between Xiaoheli river reservoir and its upstream rivers.