摘要
根据样方调查的结果,分析了海南岛铜铁岭热带低地雨林群落的种类组成、区系成分、外貌特征和年龄结构.结果表明,在2600m2样方中,有维管束植物88科186属258种;优势科为番荔枝科、大戟科、茜草科、樟科、芸香科、桃金娘科等.区系地理成分可分为10种类型,热带分布的属占绝对优势,达94.89%.群落的生活型以高位芽为主,群落外貌主要由革质、单叶和中型叶为主的常绿阔叶林高位芽植物决定.群落成层现象明显,可分为乔木层、灌木层、草本层,乔木层可再划分为2～3个亚层.种群频度分布规律为A>B>C>D>E 按Raunkiaer将频度指数划分 ,属于A级的种类占优势,为总种数的70.54%,大部分种类具有10个以下个体.乔木径级分布呈金字塔形,小径级占优势.
The phytocoenological characters of the tropical lowland rainforest in Tongtieling were studied.There are 258 species of vascular plants belonging to 186 genera and 88 families in 26 plots with an area of 2 600 m^2.Dominant families of the community are Annonaceae,Euphorbiaceae,Rubiaceae,Lauraceae,Rutaceae,Myrtaceae,etc.The floral composition can be divided into 10 areal types,of which the tropical element is 94.89%.According to Raunkiaers classification system of life form,the phanerophytes are rich in this community.The appearence of community was characterized by the evergreen broadleaved phancrophytes with coriaceous meso-monophylls.The structure of the community can be clearly divided into the three layers:tree layer,shrub layer and herb layer.The frequency distribution was different from the Raunkiaers Frequency Law.
出处
《西北植物学报》
CAS
CSCD
北大核心
2005年第1期103-112,共10页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金资助项目 30270122
关键词
热带低地雨林
群落特征
海南岛
铜铁岭
Tropical lowland rainforest
community characteristics
Hainan Island
Tongtieling
