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2008—2009、。。a、、、、pH、。X171.5A1672-2043201310-2035-07doi:10.11654/jaes.2013.10.019吴珺1，李浩1，曹德菊1*，黄祥明2，赵富贵2，王光宇3，闫晓明31.2300362.2380063.230031Tempo-spatialDynamicsandCauseofCyanobacterialBloomsinEast-halfPartofLakeChaohuWUJun1,LIHao1,CAODe-ju1*,HUANGXiang-ming2,ZHAOFu-gui2,WANGGuang-yu3,YANXiao-ming31.SchoolofResourcesandEnvironmentAnhuiAgriculturalUniversityHefei230036,China;2.ChaohuEnvironmentalProtectionBureauofEnvironmentalMonitoringStation,Hefei238006,China;3.AnhuiAcademyofAgriculturalSciences,Hefei230031,ChinaAbstractToexplorethetempo-spatialdynamicsandcauseofthecyanobacterialbloomsintheeast-halfpartofLakeChaohu,thedensityofcyanobacterial,chlorophylla,watertemperaturetotalnitrogen,totalphosphorusandpHweremeasuredduring2008—2009.Cyanobac－terialbloomsgenerallyappearedbetweenJuneandAugust,andnearthecenterZhongmiaooftheLake.Cyanobacterialbloomingchloro－phyllacontentandalgaldensitywassignificantlycorrelatedwithtransparencyindex,permanganateindex,ammonianitrogenandtotalni－trogeninwater.Nitrogeninwaterwasacriticalfactorleadingtotocyanobacterialblooming.Suitabletemperaturefacilitatedthisphe－nomenon.Keywordscyanobacterialbloom;spatialandtemporaldynamic;correlationanalysis;multipleregressions;LakeChaohu2013－02－272012BAD14B1313C02031987—。E-mailsleepjun126@126.com*E-mailcdj@ahau.edu.cn20133210:2035-2041201310JournalofAgro-EnvironmentScience[1]。[2]。N、P、pH[3-5]。[6][7]。。2008—20094—9、a、、。11.11.1.1116°24′28″118°00′00″、30°58′40″32°06′00″113486km2、、[8]。321015~16℃1739.2℃-20.6℃[9]。。1100mm1450mm630mm。、1—211—123—59—106—8。1.1.2HH-6、、720s、、、PHS-25pH、OhausScoutSE602F。1.21.2.1、、、、6。20085—920095—8。、、、、、、、pH。1.2.2[10]、pH[11]《》。1.2.3“”[12]。TLIa、、、TLI∑=mj=1∑Wj·TLIj1TLI∑TLIjjWjj。。Wj=r2ijmj=1∑r2ij20~100[13]1。50。1.2.4SASa“a”“”、“”、“pH”、“”、“”、“”、“”、“”Y=βo+β1X1+β2X2+β3X3+……+βkXk+εYX1、X2、……、Xkβ1、β2、……、βkβoε[14]。aYX1、X2、pHX3、X4、X5、X6、X7X8。22.120085—820095—922008200920087872820091Table1Theclassificationofwaternutritionindex1Figure1LocationofthesamplingsitesinLakeChaohuTLI∑3030~5050~6060~7070203632120131061572731.3×104、42.9×104·L-1。2008728452×104、328×104·L-12a。2b200920082009。[15]。。2.239%22%[16][17]。。2008、2009SD、CODMn、TNTPr12=-0.439r13=0.340r14=-0.105r15=0.362。2Chla、SD、CODMn、TN、TP0.7015、0.1352、0.0811、0.0077、0.0745。[11]TLIchla=102.5+1.086lnchlaTLISD=105.118-1.94lnSDTLICODMn=100.109+2.661lnCODTLITN=105.453+1.694lnTNTLITP=109.436+1.624lnTP1200820095—83。3a500450400350300250200150100500/105·L-1a200850454035302520151050/105·L-1b20092037321020085503b2009610。[18][13]。Chuai[19]。4。2。3b20096[20]。。Odum。。2.32008、2009a、Pearson2。2a、、、、。、pH、。a、20082009。pHapH[21]。pH。a、DO。[6]22009a。。2a0.137~0.5920.205~0.481。a、a。*P0.05**P0.01。2a、Table2Thecorrelationcoefficientandtestresultsofchlorophyllacontent,algaedensitybetweenfactorsineast-halfpartofLakeChaohua2008200920082009/℃0.777**0.0820.333**0.088pH0.1370.147-0.205*0.160/m-0.344**-0.508**-0.286**-0.285**DO/mg·L-1-0.320**0.328**-0.1150.304**/mg·L-10.592**0.296**0.469**0.255*/mg·L-10.393**0.440**0.440**0.242*/mg·L-10.412**0.517**0.323**0.481**/mg·L-1-0.1930.398**0.0430.10720383212013103a1、2Table3Theanalysisofvarianceaboutchlorophyllainfluencefactorinmodel1andmodel2a、、[22-23]。aa、pH、[24]。apH、、。2.4a[25]aa、、pH、、、、、20085—86102。R2=0.7439P0.0001a。X7P0.70.05。X7DOX5R2=0.7379P0.00011Y=-73.122+1.865X1-21.585X2+4.803X3+1.249X4-45.036X6+4.077X8Yamg·m-3X1℃X2mX3pHX4mg·L-1X6mg·L-1X8mg·L-1。X1R2=0.6131P0.0001X1、X8、X3pH、X2R2=0.7217P0.0001。2Y=-74.897+2.166X1-24.164X2+3.94X3+5.936X8Yamg·m-3X1℃X2mX3pHX8mg·L-1。12P0.01。31Errorsumofsquare1434.21221308.31421[26]2。2a、、pH4。20082。、a。1、22a、pH、、pH、4。33.120082009200878。20096。[20]。。3.220087NumberSourceDFSumofsquareMeansquareFFvaluePrF1Model43557.85889.4660.10.0001Error971434.2114.79Correctedtotal1014992.062Model63683.75613.9644.60.0001Error951308.3113.77Correctedtotal1014992.0620393210[27]。[28]。、a。[29]5.0m、2.5m、1.0m、0.5m、。。。、。。[20]。3.3[30]。[24]a。1220085—8a。aa。121434.2121308.21。[26]122。2。420087—8a37mg·m-3452×104·L-1。2009200831.3×104、42.9×104·L-1。2008、2009a、、、a、。、pH、。[1]LiuCL,TangDL.SpatialandtemporalvariationsinalgalbloomsinthecoastalwatersofthewesternSouthChinaSea[J].JournalofHydro-environmentResearch,2012,63239-247.[2],,,.[J].,2010,3192056-2062.JIANGXia,WANGShu-hang,ZHONGLi-xiang,etal.Seasonalvaria－tioncharacteristicsofalgaebiomassinChaohuLake[J].EnvironmentalScience,2010,3192056-2062.[3]AhnCY,ChungAS,OhHM.Rainfall,phycocyanin,andN∶Pratiore－latedtocyanobacterialbloomsinaKoreanlargereservoir[J].Hydrobi－ologia,2002,474117-124.[4],,,.[J].,2007,301047-49.CUILi-feng,YOULiang,HUANGZhen-fang,etal.TN/TPratiooflakewateranditsimplicationinalgaebloomofBeijing′sUrbanLake[J].En－vironmentalScience&Technology,2007,301047-49.[5]PaerlHW,FultonRS,MoisanderPH,etal.Harmfulfreshwateralgalblooms,withanemphasisoncyanobacteria[J].TheScientificWorldJournal,2001,176-113.[6].[J].,2008,20121-26.ZHUGuang-wei.Eutrophicstatusandcausingfactorsforalarge,shal－lowandsubtropicalLakeTaihu,China[J].JournalofLakeSciences,2008,20121-26.[7],,,.[J].,2012,325906-911.LIYing,CAOWen-zhi,ZHANGYu-zhen,etal.AStudyonthemecha－nismsofeutrophicati