采用相邻格子法,对安溪云中山福建青冈天然林进行群落调查,分析了福建青冈群落的种类组成、群落物种多样性、种群的生活型、物种的频度和年龄结构等群落特征.结果表明,该群落有明显的乔木层、灌木层、草本层及一定数量的层间植物.在调查样地内共有植物43科60属77种,其中乔木层有9科9属9种,灌木层有46种,草本层有54种,蕨类植物有3科3属4种；层间植物有4科5属5种.群落多样性指数、优势度指数、均匀度指数均是灌木层＞草本层＞乔木层,只有丰富度指数是草本层＞灌木层＞乔木层.群落中高位芽植物最多,其次是地上芽植物,而地面芽植物和蕨类植物总共占了11.00％,未发现有隐芽植物和1年生植物.群落在主林层上占有明显优势,在演替层和更新层的频度分别为0.67和0.17,说明福建青冈林分更新慢,种群进展较难.福建青冈种群年龄结构呈纺锤型,即中间级别的个体数量多,而幼树和老树级别的个体数量较少,认为是衰退种群的表现.%The community characteristics investigation of natural forest of Cyclobalanopsis chungii on Yunzhong Mountain was taken out with contiguous grid quadrat method. The characteristics of Cyclobalanopsis chungii community, such as kinds, species diversity, population life form, frequency and age structure were studied. The results were as followed. The community had obvious stratifications, with a certain amount of interlayer plant. The Shannon-Weiner index, Simpson index and Pielou index of the layers were all showed the order of shrub layer > herbaceous layer > tree layer, while the Margalef index showed the order of herbaceous layer > shrub layer > tree layer. The number of phanerophytes was the most, and the cryptophytes and annual were not found. The frequentness showed that the main storey took up a distinct advantage in the community, which further illustrated that the forest stand renewed slowly. Besides, the age structure of the Cyclobalanopsis chungii population presented a spindle kind, which was regarded as the representation of recession population.
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