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1、玉龙雪山植物多样性海拔分布型Xuetal.SpringerPlus(2016)5:1566DOI10.1186/s40064-016-3052-1Altitudinalpatternsof?plantdiversityon?theJadeDragonSnowMountain,southwesternChinaXiangXu,HuayongZhang*,WangTian,XiaoqiangZengandHaiHuang*Correspondence:rceens@ncepu.edu.cnNorthC
2、hinaElectricPowerUniversity,ResearchCenterforEngineeringEcologyandNonlinearScience,Beijing102206,ChinaAbstractBackground:Understandingaltitudinalpatternsofbiologicaldiversityandtheirunderlyingmechanismsiscriticallyimportantforbiodiversityconservationi
3、nmoun-tainousregions.Thecontributionofareatoplantdiversitypatternsiswidelyacknowl-edgedandmaymasktheeffectsofotherdeterminantfactors.Inthiscontext,itisimportanttoexaminealtitudinalpatternsofcorrectedtaxonrichnessbyeliminatingtheareaeffect.Hereweadoptt
4、womethodsto—————————————————————————————————————————————————————correctobservedtaxonrichness:apower-lawrelationshipbetweenrichnessandarea,hereafter“method1”;andrichnesscountedinequal-areaaltitudinalbands,hereafter“method2”.Wecomparethesetwomethodsonth
5、eJadeDragonSnowMountain,whichisthenearestlarge-scalealtitudi-nalgradienttotheEquatorintheNorthernHemisphere.Results:Wefindthatseedplantspeciesrichness,genusrichness,familyrichness,andspeciesrichnessoftrees,shrubs,herbsandGroupsI–III(specieswithelevati
6、onalrangesize<150,between150and500,and>500m,respectively)displaydistincthump-shapedpatternsalongtheequal-elevationaltitudinalgradient.Thecorrectedtaxonrichnessbasedonmethod2(TRcor2)alsoshowshump-shapedpatternsforallplantgroups,whiletheonebasedon
7、method1(TRcor1)doesnot.Asfortheabioticfactorsinfluencingthepatterns,meanannualtemperature,meanannualprecipitation,andmid-domaineffectexplainalargerpartofthevariationinTRcor2thaninTRcor1.Conclusions:Inconclusion,forbiodiversitypatternsontheJadeDragonSn
8、owMoun-tain,method2preservesthesignificantinfluencesofabioticfactorstothegreatestdegreewhileeliminatingtheareaeffect.Ourresultsthusrevealthatalthoughtheclas-sicalmethod1hasearnedmoreattentionandapprovalinpreviousresearch,method2can————————————
