肇庆九龙湖水源涵养林黑桫椤群落特征的研究

以肇庆九龙湖水源涵养林黑桫椤群落的代表样地调查资料为基础,研究九龙湖水源涵养林黑桫椤群落的特征。结果表明:九龙湖水源涵养林黑桫椤群落有维管植物143种,隶属于72科111属,科、属的分布型以热带占绝对优势,反映了该群落以热带为主的南亚热带区系特点;该黑桫椤群落的形态特征主要由草质、全缘、单叶、微型叶为主的高位芽植物所组成,群落层次分明,可分为乔木层、灌木层、草本层及层间植物。

Research on the Characters of Water-conservation Forest Gymnosphaera podophylla Community in Jiulong Lake Area of Zhaoqing

On the basis of the surveying data of water-conservation forest Gymnosphaera podophylla community in representative plots in Jiulong Lake area of Zhaoqing,its characters were studied.The results showed that there were 143 species of vascular plants in the community,which belonged to 72 families and 111 genera.The tropic had absolute dominance on the distribution types of families and genera,reflecting its characteristics of south sub-tropic flora with the tropic as the main.The morphological characters of the G.podophylla community mainly insisted of herbaceous phanerophytes with simple leaf and nanophyll with entire margin as major leaftype.It had obvious hierarchy in population consisted of tree layer,shrub layer,herb layer and interlayer plants.