西双版纳勐养山地雨林群落生态学研究

Community Ecology of Montane Rainforest in Mengyang,Xishuangbanna, Yunnan

依据5个25m×20m样地的调查,对西双版纳勐养热带山地雨林的群落结构、种类组成、生活型构成、多样性、种面积关系等进行了研究.结果显示,勐养山地雨林主要由茜草科、桃金娘科、肉豆蔻科、樟科、大戟科等植物种类组成,以黄棉木(Metadina trichotoma)、华夏蒲桃(Syzygium cathayense)、假广子(Knema erratica)及山桂花(Paramicheliabaillonii)为乔木优势种;群落乔木层以中叶、全缘、革质、尾尖、常绿植物占优势,灌草层植物则以中叶、全缘、纸质叶植物为主;藤本植物中以木质藤本占优势,板根和茎花现象少见.各种性质表明该群落是西双版纳较为典型的山地雨林群落类型,可命名为黄棉木-华夏蒲桃林.

The structure, species composition, life form spectrum, species diversity and richness of a tropical montane rainforest in Mengyang, Xishuangbanna were studied based on five 25 m × 20 m sample plots. The forest is composed mainly of the families, Rubiaceae, Myrtaceae, Myristicaceae, Lauraceae and Euphorbiaceae, and dominated by tree species, Metadina trichotoma, Syzygium cathayense, Knema erratica and Paramichelia baillonii. In physiognomy, the forest is characterized by the trees with mesophyllous, entire and leathery leaves. Woody lianas are found dominant, but trees with buttresses and cauliflory are relatively few in the forest. All the characters indicate that the community is a typical montane rainforest in the region and can be named as Metadina trichotoma - Syzygium cathayense forest community. Fig 1, Tab 5, Ref 22