Study on Compositions and Geographical Elements of Vascular Plants in Castanopsis fabri Community，Daiyun Mountain
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摘要: 戴云山自然保护区罗浮栲（Castanopsis fabri）群落有维管植物39科61属104种，其中蕨类植物有4科4属4种，裸子植物有2科3属3种，被子植物有33科54属97种。群落植物组成上，包含物种多的科和属数量少，而包含物种少的科和属数量多。该群落维管植物在科、属级上以热带成分为主；此外，该群落维管植物是华东植物区系的组成部分，在地理成分上与华南、华中地区联系紧密。可见，戴云山罗浮栲群落具有典型的中亚热带常绿阔叶林群落特征。Abstract: Based on the results of plot investigation，there were 104 vascular plants，belonging to 39 families and 61 genera，in Castanopsis fabri community in Daiyun Mountain National Nature Reserve．Of the species，4 species belonging to 4 families and 4 genera were pteridophyte，3 species belonging to 2 families and 3 genera were gymnosperm，and 97 species belonging to 33 families and 54 genera were angiosperm．The number of the families containing more species was less than that of the families containing few species．The analysis of the geographical elements of vascular plants showed that the tropical elements taked predominate position and the temperate elements taked secondary position in the family and genus class，and that the vascular plants as a part of the flora of East China were connected with the plants in the region of South China and Central China.These results indicated that Castanopsis fabri community in Daiyun Mountain National Nature Reserve was a forest community with typical characterization of the midsubtropical evergreen broadleave forest．
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