湖南阳明山国家自然保护区南方红豆杉群落特征研究

Study on the characteristics of Taxus chinensis var. mairei community in Yangming Mountain National Nature Reserve of Hunan Province

采用样方法,对湖南省阳明山国家自然保护区南方红豆杉植物群落进行调查,运用多样性指数,对其群落的组成,结构特征及物种多样性进行了研究,结果表明:①南方红豆杉集中分布于阳明山一漯漕、二漯漕中山地带,多与其它树种混生;②该群落区系组成丰富,属于许多属的过渡地带,具有从中亚热带南部亚地带向北部亚地带过渡的特征;③阳明山南方红豆杉林划分为两种群落类型,即南方红豆杉—毛竹混交林、南方红豆杉—常绿阔叶树种混交林。

Using the method of sample plots, the community of Taxus chinensis vat. mairei were investigated and holding diversity index, the community composition, structure and species diversity were studied. The results show that： ① Taxus chinensis vat. rnairei were mixed with other species mostly distributed in Yiluocao and Erluocao of the middle mountain area in Yangming Mountain; ② The compositions of the community are rich,with the characteristics of transition from the southern of subtropical to the northern of it; ③ Taxus chinensis var. rnairei in Yangming Mountain could be divided into two communities, Taxus chinensis var. rnairei-Phyllostachys pubescens community and Taxus chinensis var. mairei-breadleaf evergreen community.