33年生格氏栲人工林与天然林群落特征比较  

Comparison of community characteristics between 33-year-old plantation and natural forest of Castanopsis kawakamii

作　　者：陈辉[1] 

机构地区：[1]福建农林大学莘口教学林场,福建三明365002

出　　处：《福建林学院学报》2009年第2期155-159,共5页Journal of Fujian College of Forestry

基　　金：福建省青年科技人才创新基金资助项目(2001J038);福建省科委重大基础研究基金资助项目(2000F004);高等学校骨干教师计划基金资助项目

摘　　要：对福建三明33年生格氏栲人工林的植物区系和群落特点进行研究,并与临近的格氏栲天然林群落进行比较。结果表明,1 200 m2格氏栲人工林群落共有维管束植物42种,少于相同面积的天然林群落(87种)。种子植物属的热带成分在2个群落中均占优势,人工林群落热带属比例(87.50%)高于天然林(76.56%)。高位芽植物在2个群落中均占优势,人工林群落高位芽植物比例(71.43%)小于天然林(89.66%)。格氏栲人工林层次结构简单,乔木层树种单一,灌木层和草本层发育较差,物种少,乔木层、灌木层和层外植物的Shannon-Wiener多样性指数低于天然林群落;天然林群落层次结构复杂,乔木层树种多,有3个亚层,灌木层发达,有2个亚层,种类较多,草本层发育较差。A 33-year-old Castanopsis kawakamii plantation forest community was studied and compared with the neighboring natural community in Sanming, Fujian, China. The results showed that there were 42 vascular plant species in the study area （ 1 200 m^2 ） of the plantation community, and fewer species than in the natural community with the same area （87 species）. Tropical areal types of genus of spermatophyte were dominant in both of the communities, and their percentage in the plantation （87.50%） was higher than that in the natural forest （76.56%）. Phanerophytes were dominant life form in both of the communities, and their percentage in the plantation （71.43%） was lower than that in the natural forest （89.66%）. The plantation community had simple vertical structure with monolayer of tree crowns, only one species in the tree layer, lower number of species in poorly developed shrub and herb layers. Shannon-Wiener index of diversity for tree layer, shrub layer and vine species were lower in the plantation community than those in the natural forest community. The natural forest community had complex vertical structure with multilayer of tree crowns, multiple species in the tree layer with 3 sub-layers, well developed multiple-species shrub layer with 2 sub-layers, and poorly developed herb layer.

关 键 词：格氏栲 人工林 天然林 群落特征 

分 类 号：S718.542[农业科学—林学]