福建梁野山自然保护区观光木群落特征研究

Characteristics of Michelia odora Forest Community in Liangyeshan National Nature Reserve in Fujian Province

为了解观光木(Michelia odora(Chun)Noot.et B.L.Chen)群落的种类组成、群落结构特征,对福建梁野山自然保护区观光木群落进行样方调查。结果表明:该群落有维管植物43科66属89种,其中蕨类植物10科11属14种,双子叶植物28科48属66种,单子叶植物5科7属9种;常绿木本植物占绝对优势,是群落结构的主体,群落表现出典型的常绿性;木兰科植物的重要值最大,是群落的优势建群科。群落成层现象明显,可分为乔木层(2亚层)、灌木层和草本层3个层次,木质藤本植物丰富。未受毛竹侵入的观光木群落的4种多样性指数在群落不同层次均表现为灌木层>乔木层>草本层。

In order to understand the species composition and community structure characteristics of a Michelia odora forest community,a Michelia odora forest community is investigated in Liangyeshan National Nature Reserve,Fujian Province.The results show that there are 89 vascular plants belonged to 43 families and 66 genera,in which the pteridophyte involves 10 families for 11 genera and 14 species,the dicotyledon involves 2 families for 48 genera and 66 species,the monocotyledon involves 5 families for 7 genera and 9 species.Evergreen woody plants account for an absolute advantage,and are the main body of community structure.The Michelia odora community shows typical evergreen.Magnoliaceae has the highest important value(22.24)and it is the most dominant family in the community.The community can be vertically divided into three layers,tree layer(including 2 sublayers),shrub layer and herb layer;and the woody vines are rich.The analysis of species diversity shows that the order of the magnitude of species diversity is:shrub layer>tree layer>herb layer and the Michelia odora community is not invaded by Phyllostachys edulis.