云南亚热带南部孢粉空间组合特征及其与环境分异的关系

29120091ACTAECOLOGICASINICAVol.29,No.1Jan.,2009(2003CB415101):2007208228;:20082062173Correspondingauthor.E2mail:[e-mail]1,2,1,3,3,1,4,1(1.,100101;2.,100049;3.,100085;4.,100045):,73528:(1),,;,,,;,4,(2),,(3),:;;;:100020933(2009)0120151210:Q143,Q944,Q945,Q948:ARelationshipsbetweensurfacepollenandsporesassemblagesandenvironmentaldifferenceintheSouthernSubtropicsofYunnanProvince,ChinaPANTao1,2,WUShao2Hong1,3,3,DAIEr2Fu1,WANGHao4,ZHAODong2Sheng11InstituteofGeographicSciencesandNaturalResourcesResearch,ChineseAcademyofSciences,Beijing100101,China2GraduateUniversityofChineseAcademyofSciences,Beijing100049,China3InstituteofTibetanPlateauResearch,ChineseAcademyofSciences,Beijing100085,China4StandardsPressofChina,Beijing100045,ChinaActaEcologicaSinica,2009,29(1):01510160.Abstract:Basedonthepollenandsporesdataofthirty2fivesoilsurfacesamplesandtwenty2eightprofilesamplesfromsevensamplingplotsofcommunityforestsinthesourthernsubtropicsofYunnanprovince,thecharacteristicofpollenandsporesspatialassemblagesanditsrelationshipwithdifferentenvironmentsareanalyzed.Resultsshowthat:(1)Therearesignificantdifferencesinthepollenandsporestaxa,amounts,dominanttaxaandplantfloraebetweenbothflanksoftheAilaoMountain.Thepollenandsporestaxaandamountsofthewesternpartaremoreplentifulthantheeastern.ThedominanttaxaaremorecentralizedandprominentintheeasternpartoftheAilaoMountain,whiletheyarenotprominentbutmorecomplexinthewestern.Asforplantfloraedistribution,therearegreatdifferencesintheamountandproportionofthefourfloraeofcosmopolitan,pantropic,tropicalAsia,tropicalAfricaandnorthtemperatebetweentheeasternandthewesternflanks.(2)Theanalysisofprofilepollenandsporesassemblagesshowsthattheirchangingtrendsarebasicallyintheaccordancewiththesurfacepollenandsporesassemblages,alsoanindicationofthedifferencesbetweenthebothflanks.(3)Suchobviousspatialdifferencesofthepollenandsporesassemblagesarerelevanttotheregionalterrainsand:subtropicsofYunnan;pollenandspores;spatialdifference;environmentaldifference,[1],,,,,,,,,,[2]14C,,,,,,,[3]22[46][79][10,11][1214][1517],[1820](longitudinalrange2gorgeregion,LRGR),()()(2)2,3100m,,,,,,,,(),,,,,,,,,1,9840531061133E222634242735N,7(1),,[21],,,[22],,,,1619,1000mm,10001500mm,,,25129[22]1Fig.1Studyareaandthedistributionofsamples,,,,(2a);,,,80%90%(2b),,101.5E,(2c),101.5E,101.5E,(7)21,21(2d);,(1)11,11(2e);(2f),,2m20m/s,20m/s(2g),(2h)22.124N,7(1),,,(S1)(S2)(S3)(S4)(S5)(S6)(S7),15003000m,6,5,10cm,35,,4050cm,1000a[23],10cm,4728,20m20m()[10],,,3511:://:P1=Q1X1100%(1),P1(%),Q1(),X1()()P2=Q2X2100%(2),P2(%),Q2(),X2()()3[24]3,1Table1ComparisonofendemictaxabetweentheeastandwestsidesofAilaoMountainSporo2pollentaxaEastofAilaoMountainS1S2S3S4WestofAilaoMountainS5S6S7Fagus241WoodyLlex118131Moraceae21Palmae12Chenopodiaceae121HerbEuphoribiaceae11Rubiaceae1281Cyathea2FernCibotium11Pteris4Lepisorus11Athyrium23.17,S1S2S3S4,,S5S6S7(3)4,5511:(2),5%5,10%4,666.73%;5%3,63.03%,10%2,27%29%,;10%3,5%7,10%2,764.51%;5%8,10%1,861.05%;5%7,10%3,776.27%,,,,5%10%,10%,,,10%,,3.3[25,26],()965129(%)S2Taxon(%)S3Taxon(%)S4Taxon(%)S5Taxon(%)S6Taxon(%)S7Taxon(%)Castanopsis18Quercus(D)29Castanopsis28Lithocarpus26Lithocarpus19Hamamelidaceae14Lithocarpus23PercentageofQuercus(D)15Quercus(E)27Pinus24Castanopsis16Castanopsis12Llex9Quercus(D)14DominantTaxaQuercus(E)12Ericaceae7Alnus15Chionanthus13Alnus10Araliaceae8Castanopsis11Lithocarpus10Lithocarpus14Pinus12Tsuga7Carpinus7Alnus10Pinus6Alnus10Araliaceae6Lithocarpus6Chionanthus7Chionanthus5Alnus6Quercus(E)6Hamamelidaceae5Gramineae6Pinus6Tsuga5Total676381776561763Table3ComparisonofprofilepollenandsporesbetweentwosidesofAilaoMountainFloraTypesWestSideofAilaoMoutainAmountPercentage(%)EastofAilaoMountainAmountPercentage(%)Cosmopolitan20418.8705.8Pantropic232.1151.2TropicalAsiatoTropicalAfrica131.240.3NorthTemperate14513.431826.4NorthTemperateandSouthTemperateDisjunction66160.975662.8()EastAsia(tropical,subtropical)andTropicalSouthAmericadisjunction383.5373.1TropicalOldWorld00.010.1Euro2AsiaandSouthAmericaTemperate00.010.1EastAsiaandNorthAmericadisjunction10.110.1,,,,145318,1314%26.4%3.4,(4),,,,7511: