清流县大丰山长苞铁杉群落结构研究

Structure Features of Tsuga longibracteata Community in Dafeng Mountain, Qingliu, Fujian

通过设置临时标准地对大丰山长苞铁杉群落的区系成份，群落外貌和结构特征进行了调查与研究．结果表明该群落有维管植物96种，隶属于37科和65属．生活型谱以高位芽植物占绝对优势，占80．2％．该群落结构分明，乔木层、灌木层和草本层层次清晰．乔木层以长苞铁杉、黄山松、甜槠等占优势，但其多样性指数低于灌木层．

Based on the data collected from sample plots, this paper researched into the characteristics ofTsuga longibracteata community, such as floristic composition, physiognomy and structure, which occer inDafeng mountain, Qingliu county, fujian province. The results showed that there are 96 vascular species occurring in the community, which belonging to 37 families and 65 genera, the community has three layers-treestratum,shrub layer and field layer distinctly,with higher diversity index inshrub layer,the life form spectrumis dominated by phanerophytes with percentage of 80. 2%.