资源描述：
《石门台自然保护区不同森林群落类型结构组成及物种多样性》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、第33卷第11期中南林业科技大学学报Vol.33No.112013年11月JournalofCentralSouthUniversityofForestry&TechnologyNov.2013石门台自然保护区不同森林群落类型结构组成及物种多样性12解丹丹，苏志尧（1.许昌学院城市与环境学院，河南许昌461000;2.华南农业大学林学院,广东广州510642）摘要：基于3个标准样地（100m×100m）植被的全面调查，研究了石门台自然保护区针阔叶混交林、常绿阔叶林和山顶矮林3类典型森林群落冠层树种的结构组成和物种多样性特征。结果表明：针阔叶混交林、常绿阔叶林和山顶矮林
2、冠层树种组成分别为31科41属48种、23科39属49种和38科58属75种；科、属、种组成复杂，优势科和优势种明显，3类群落共有的科和种分别为茶科Theaceae和木荷Schimasuperba；常绿阔叶林结构稳定，除密度和盖度外，胸径、树高和冠幅均高于针阔混交林和山顶矮林，山顶矮林结构稳定性次之，针阔混交林结构极不稳定；除物种丰富度外，山顶矮林、针阔混交林的物种Shannon-Wiener指数、Simpson指数、物种均匀度均显著高于常绿阔叶林。本研究结果为生物多样性保护、退化生态系统的恢复重建提供了科学依据。关键词：群落结构；物种多样性；物种组成；石门台自然保护
3、区+中图分类号：S718.542；Q145文献标志码：A文章编号：1673-923X(2013)11-0053-05StandstructureanddiversityofdifferentforesttypesinShimentaiNatureReserve12XIEDan-dan,SUZhi-yao(1.CollegeofUrbanandEnvironmentalSciences,XuchangUniversity,Xuchang461000,Henan,China;2.CollegeofForestry,SouthChinaAgriculturalUnivers
4、ity,Guangzhou510642,Guangdong,China)Abstract:Basedonacomprehensivesurveyofthevegetationsinsidethreestandardplots(100m×100m),thestandstructure,speciescompositionanddiversitycharacteristicsoftreesamongthreetypicalforestcommunitieswereinvestigated,whichwereconiferousandbroad-leavedmixedfor
5、est,evergreenbroad-leavedforestandmontaneelfinforestinShimentaiNatureReserve.Theresultsshowthattherewere48treespeciesbelongingto31familiesand41genera,49treespeciesbelongingto23familiesand39genera,and75treespeciesbelongingto38familiesand58generarecordedintheconiferousandbroad-leavedmixed
6、forest,evergreenbroad-leavedforestandmontaneelfinforest,respectively;Thecompositionoffamily,genus,specieswerecomplicated,andthedominantfamiliesandspecieswereobvious;ThesamefamilyandspeciesofthreeforestswereTheaceaeandSchimasuperb,respectively;Thestructureofevergreenbroad-leavedforestwas
7、stable,inadditiontothedensityandcoverage,theDBH,treeheightandcrownbreadthofwhichwerehigherthanmontaneelfinforestandconiferousandbroad-leavedmixedforest;Thestructuresofconiferousandbroad-leavedmixedforestwereunstable;Inadditiontotherichnessindex,theShannon-Wienerindex,Simpsonind
