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首页> 外文期刊>Ecological indicators >The seasonal and spatial variations of phytoplankton community and their correlation with environmental factors in a large eutrophic Chinese lake (Lake Chaohu)
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The seasonal and spatial variations of phytoplankton community and their correlation with environmental factors in a large eutrophic Chinese lake (Lake Chaohu)

机译：大型富营养化中国湖泊（巢湖）浮游植物群落的季节和空间变化及其与环境因子的关系

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摘要

The seasonal and spatial variations of phytoplankton community and their correlation with environmental factors, as well as the applicability of phytoplankton to serve as biological water quality indicator in Lake Chaohu are investigated in the present study. 97 phytoplankton species were identified, in which 35.1% of Cyanophyta and 37.1% of Chlorophyta. In terms of the community composition at the annual average level and the spatial distribution, Cyanophyta was absolutely dominant (more than 99.4% of the total). The main dominant species in Lake Chaohu were Microcystis viridis, Microcystis flos-aquae, and Anabaena circinalis, all belonging to Cyanophyta. The average phytoplankton cell density of the dominant species showed substantial seasonal differences. In Lake Chaohu, the M. flos-aquae was dominant in spring and summer; while the M. viridis and the A. circinalis were dominant in autumn and in winter, respectively. The canonical correspondence analysis (CCA) showed that the water temperature (T), oxidation reduction potential (ORP), dissolved oxygen (DO) and orthophosphate (PO_(4~(3-)) -P) were the environmental factors having the greatest influence on the phytoplankton community composition in Lake Chaohu, whereas T, ORP, total suspended solids (TSS) and total nitrogen (TN) were the most important environmental factors in the inflow and outflow rivers. The average species number of phytoplankton was lowest, and the average cell density of phytoplankton was highest in summer, which corresponded to the worst water quality, as indicated by physical and chemical indicators, TSS, DO, chemical oxygen demand (COD) and total phosphorus (TP); while, in winter, the average species number of phytoplankton was largest, and the average cell density of phytoplankton was lowest, which corresponded to the best water quality, as indicated by TSS, DO, COD and TP. This implied that the species number and cell density of phytoplankton could serve as biological water quality indicators, which would give overall descriptions of water quality by combining with the physical and chemical indicators.
机译：本文研究了巢湖浮游植物群落的季节和空间变化及其与环境因素的相关性，以及浮游植物作为生物水质指标的适用性。鉴定出97种浮游植物，其中蓝藻35.1％和绿藻37.1％。就年平均水平的群落组成和空间分布而言，蓝藻属绝对占主导地位（超过总数的99.4％）。巢湖的主要优势种是绿藻微囊藻，浮游微囊藻和圆藻鱼腥藻，均属于蓝藻。优势种的平均浮游植物细胞密度显示出明显的季节性差异。在巢湖，春季和夏季占主导地位的是浮游杆菌。而M. viridis和A. circinalis分别在秋季和冬季占优势。典型对应分析（CCA）表明，水温（T），氧化还原电位（ORP），溶解氧（DO）和正磷酸盐（PO_（4〜（3-））-P）是最大的环境因子。对巢湖浮游植物群落组成的影响，而T，ORP，总悬浮固体（TSS）和总氮（TN）是流入和流出河流中最重要的环境因素。物理和化学指标，TSS，DO，化学需氧量（COD）和总磷表明，夏季浮游植物的平均物种数最低，而浮游植物的平均细胞密度最高，这对应于最差的水质。 （TP）； TSS，DO，COD和TP表明，冬季浮游植物的平均种类数最大，浮游植物的平均细胞密度最低，对应于最佳水质。这表明浮游植物的种类数量和细胞密度可以作为生物水质指标，结合理化指标对水质进行整体描述。

著录项

  • 来源
    《Ecological indicators》 |2014年第5期|58-67|共10页
  • 作者

    Yu-Jiao Jiang; Wei He; Wen-Xiu Liu; Ning Qin; Hui-Ling Ouyang; Qing-Mei Wang; Xiang-Zhen Kong; Qi-Shuang He; Chen Yang; Bin Yang; Fu-Liu Xu;

  • 作者单位

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

    MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Lake Chaohu; Phytoplankton; Community structure; Seasonal and spatial variation; Environmental factor; Biological water quality indictor;

    机译：巢湖浮游植物;社区结构;季节和空间变化;环境因素;生物水质指标;

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