中文摘要：

选择福建闽清黄槠林自然保护区的福建青冈（Cyclobalanopsis chungii）群落为研究对象,采用相邻格子法分别对其群落结构、物种组成、演替方向,及其优势木福建青冈种群的年龄结构和分布格局等进行研究.结果表明,福建青冈林分层次明显.群落物种丰富度和多样性指数大小排列：草本层〉灌木层〉乔木层.其均匀度指数大小排列：灌木层〉草本层〉乔木层.群落中福建青冈的重要值最高,但实生幼苗极少;福建青冈种群在主林层中占有明显优势,在演替层和更新层中的频度较低,分别为0.08和0.25;其年龄结构呈纺锤型,中树个体数量达842株.hm-2,幼树和大树的个体数量较少,幼龄、中龄和成龄个体均呈聚集分布,种群更新不良,呈衰退趋势.

英文摘要：

Cyclobalanopsis chungii forest in Huangzhulin nature reserve district in Mingqing of Fujian Province was selected to be researched.The community structure,species composition,succession direction,population age structure of C.chungii of its dominant trees and distribution pattern were studied by successive sampling method.The results showed that the stand level of C.chungii was obvious,the order of species richness and diversity index was as follows： herb layershrub layertree layer.The order of uniformity index was as follows： shrub layerherb layertree layer.The important value of C.chungii in community was the highest,but the seedling trees of C.chungii were rare;C.chungii population occupied an important position,and the frequencies in the succession layers and renewallayer were respectively 0.08 and 0.25;the population age structure of C.chungii showed a spindle type,the number of medium-sized trees was up to 842 hm-2,the number of saplings and big trees was small;young,middle-age and adult age individuals all showed aggregated distribution,which suggested C.chungii populations updated slowly with declining trend.