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1、应用生态学报2010年7月第21卷第7期ChineseJournalofAppliedEcology,Ju.l2010,21(7):1844-1850太湖金墅湾水源地浮游植物群落结构*及其与环境因子的关系1,211**1,21,21,2李钦钦邓建才胡维平胡柳明高峰朱金格12(中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,南京210008;中国科学院研究生院,北京100049)摘要利用典范相关分析方法(CCA),对太湖金墅湾水源地水体浮游植物群落结构及其与环境因子之间的关系进行了研究.共鉴定浮游植物7门58属,群落组成以蓝藻、硅藻和绿藻为主;4-14夏季浮游植物的种类和数量均较多,平
2、均密度为250@10ind#L,略高于春季(238@10ind#-1L).春、夏2季浮游植物群落结构差异较大,春季以蓝藻为最优势门类、鱼腥藻为最优势类群;夏季以绿藻为最优势门类,无最优势类群,但平裂面藻和栅藻在数量上较占优势.除受季节温度影响外,春季影响浮游植物分布的主要环境因子依次为铵态氮、总磷、总氮和磷酸盐,而总氮、铵态氮、磷酸盐、悬浮物、高等水生植物、总磷和透明度对夏季浮游植物分布的影响较大.关键词水源地浮游植物环境因子典范对应分析文章编号1001-9332(2010)07-1844-07中图分类号X171文献标识码ACommunitystructureofphytoplanktona
3、nditsrelationshipswithenvironmentalfactorsin1,21drinkingwatersourceofJinshuBay,TaihuLake.LIQin-qin,DENGJian-cai,HUWe-i11,21,21,21ping,HULiu-ming,GAOFeng,ZHUJin-ge(StateKeyLaboratoryofLakeScienceandEnvironment,NanjingInstituteofGeographyandLimnology,ChineseAcademyofSciences,Nanjing2210008,China;Grad
4、uateUniversityofChineseAcademyofSciences,Beijing100049,China).-Chin.J.Appl.Ecol.,2010,21(7):1844-1850.Abstract:Byusingcanonicalcorrespondenceanalysis(CCA),thispaperstudiedthecommunitystructureofphytoplanktonanditsrelationshipswithenvironmentalfactorsinthedrinkingwatersourceofJinshuBay,TaihuLake.Ato
5、talof7phylumand58generawereidentified,andthephy-toplanktoncommunitywasdominatedbyCyanophyta,Bacillariophyta,andChlorophyta.Thequan-4-1tityofphytoplanktonwasslightlyhigherinsummer(250@10ind#L)thaninspring(238@4-110ind#L),butthecommunitystructuredifferedobviouslybetweenthetwoseasons.Inspring,Cyanophy
6、tawasthedominantphylum,andAnabaenawasthedominantgenus;insummer,Chloro-phytawasthedominantphylum,withnodominantgenusbutabundantquantityofMerismopediaandScenedesmus.Besidestemperature,themainenvironmentalfactorsaffectingthedistributionofphy-toplanktoninspringwereammonium-nitrogen,totalphosphorus,tota
7、lnitrogen,andphosphate,whilethoseinsummerweretotalnitrogen,ammonium-nitrogen,phosphate,suspendedsolids,mac-rophytes,totalphosphorus,andtransparency.Keywords:drinkingwatersource;phytoplankton;environmentalfa
