中文关键词浮游植物功能群(FG、MFG和MBFG)红枫水库百花水库阿哈水库 英文关键词phytoplanktonfunctional groups(FG,MFG,and MBFG)Hongfeng ReservoirBaihua ReservoirAha Reservoir

作者	单位	E-mail
陈倩	贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001 贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001	cq19931229@126.com
李秋华	贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001 贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001	qiuhua2002@126.com
马欣洋	贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001 贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001
熊梅君	贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001 贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001
何应	贵州师范大学贵州省山地环境信息系统和生态环境保护重点实验室, 贵阳 550001 贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001
韩孟书	贵州省国际合作研究基地水生态国际联合研究中心, 贵阳 550001

中文摘要 浮游植物分类是揭示浮游植物群落演替规律和开展水生态调查工作的基础.为了比较FG、MFG和MBFG功能群分类方法之间的差异，运用功能群分类和冗余分析（RDA）等方法，于2017年4月（平水期）和2017年8月（丰水期）对浮游植物群落结构和水环境理化指标进行采样分析，结果表明：①MFG功能群与FG功能群具有重叠部分，而MBFG功能群与FG和MFG相比差异较大.②FG功能群考虑了浮游植物的生理、生态学等特征，能更好地解释与环境的相关性，并且更准确反映环境因子与浮游植物生态位之间的关系.同时可以根据浮游植物优势功能群预测水库环境因子及富营养化状态，但是FG功能群需要具备系统的浮游植物鉴定知识，工作量大.MFG功能群分类方法简单易懂，能够较好的解释浮游植物与环境因子的关系，但功能群与环境因子联系较弱.MBFG功能群分类方法最为简单、高效，但是MBFG功能群对环境的解释度不够，分类依据过于简单，分组太少.③3个分类方法各有优缺点，根据研究目的不同以及实际需要选择合适的分类方法. 英文摘要 Phytoplankton classification is the foundation for revealing the succession rules of phytoplankton communities and for conducting water ecology investigation. At present, the classification methods of functional group (FG), morpho-functional group (MFG), and morphology-based functional group (MBFG) are widely used, although great differences occur among the classification methods of different FGs. In order to compare the differences among FG, MFG and MBFG classification methods, FG classification and redundant analysis (RDA) were used to sample and analyze the phytoplankton community structures and the physical and chemical indicators of water environment in April 2017 (normal seasons) and August 2017 (wet seasons). The following results were noted. ①The MFG and FG had overlapping parts, whereas the MBFG was differed significantly from FG and MFG. ②The FG considers the physiological and ecological characteristics of phytoplankton, which can better explain the correlation with the environment and can accurately reflect the relationship between environmental factors and the phytoplankton niche. Moreover, the environmental factors and eutrophication status of the reservoir can be predicted according to the dominant FGs of phytoplankton; however, the FG needs to have systematic knowledge of phytoplankton identification and a large workload. The MFG classification method is simple and easily understood, which can better explain the relationship between phytoplankton and environmental factors; however, it is weakly connected with environmental factors. The MBFG classification method is the simplest and most efficient, although its interpretation degree to the environment is not sufficient. ③Each of the three classification methods has advantages and disadvantages; therefore, appropriate classification methods are selected according to different research purposes and their actual needs.

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