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1、湖南省南岳原生性森林群落的研究——Ⅳ.包石栎锐齿槲栎林左家哺1,朱巽1,彭代文1,李明红2(1湖南环境生物学院,湖南衡阳421005;2南岳树木园,湖南衡阳421100)摘要:南岳的包石栎锐齿槲栎林是一种尚未报道的类型,即包石栎+锐齿槲栎+甜槠-箬竹-求米草群丛。群落内有植物63科、102属、129种,属的区系成分可划分为13种分布区类型,以温带性质成分为主;种可划分为17个种分布式样,以华夏、东亚、中国-日本、华东-华中、中国-喜马拉雅和华中-华南-西南6种类型为主。木本和草本植物各占65.12%和34.88%,常绿和落叶成分各占19.38%和占45.74%。群落可划分为乔木、灌木、草本3层
2、,在更新演替过程中仍将保持常绿落叶阔叶混交林性质,但优势种、亚优势种可能会被其他种取代。群落物种多样性Simpson指数值与东南亚、南美和西非比较接近,而Shannon-Weaver和α-指数值与山地季雨林水平接近。几何级数分布、分割线段模型适于拟合乔木层,分割线段中的多度－频度和对数正态模型适于拟合草本层,对数级数分布模型适于拟合任何层次。关键词:包石栎锐齿槲栎林;区系特点;物种多样性;物种相对多度分布格局;南岳(湖南)StudyonoriginalforestcommunityinNanyueofHunanProvince-Ⅳ.Lithocarpuscleistocarpus+Quercu
3、salienavar.acuteserrataforestZUOJiafu1,ZHUXun1,PENGDaiwen1,LIMinghong2(1HunanEnvironment&BiologicalPolytechnic,Hengyang421005China;2NanyueArboretum,Hengyang421100China)Abstract:ThepaperstudiestheforestcommunitywhichisnotreportedandisnamedtheassociationofLithocarpuscleistocarpus+Quercusalienavar.acut
4、eserrata+Castanopsiseyeri-Indocalamustessellatus-OplismenusundulatifoliusinNanyueofHunanProvince.Thereare129species,102generaand63familiesofvascularplantinthecommunity.Accordingtothedistributionofgeneraofvascularplantinthecommunity,wecandividetheminto13areal-types,whichofNorthTemperate,Pantropicsand
5、EastAsiaaremajorelementsandoccupy22.73%,21.59%and17.05%oftotalrespectively,thosetemperaturefeatureisadominantpositionbutthenexttropicalone.Thespeciescanbedividedinto17distrobutionalpatterns,whichofCathaysian,EastAsia,Sino-Japan,EastChina-CentralChina,Sino-HimalayanandCentralChina-SouthChina-Southwes
6、tChinaarethemostandoccupy23.62%,15.75%,14.96%,10.24%,8.66%and8.66%oftotalrespectively,whichofEastChina-CentralChinaandCentralChina-SouthChina-SouthwestChinaaffectthefloristicformationofthecommunitymainly.Theplantsofwoodandherbinthecommunityoccupy65.12%and34.88%oftotalrespectively,theevergreenanddeci
7、duouselementsinthewoodplantoccupy19.38%and45.74%oftotalrespectively.Thecommunitycanbedividedinto3layersofarbor,shrubandherb.Itstillkeepthecharacteroftheevergreendeciduousbroad-levedmixedforest,butitsd
