摘要
通过对福建光泽江南油杉群落结构与植物多样性进行调查与分析,结果表明:江南油杉群落(2 000m2)有维管束植物48科72属92种;江南油杉群落以高位芽植物占据优势(80.44%),生活型谱具有典型的中亚热带气候特点;群落径阶和树高结构复杂,物种多样性丰富,不同层次物种多样性指数和均匀度指数均为灌木层>乔木层>藤本层>草本层,体现了的亚热带常绿阔叶林的典型特征;群落中江南油杉在乔木层占绝对优势,但幼苗幼树数量较少,在灌木层受到其他植物(主要是木本植物)的强烈竞争,种群有衰退的趋势。
Community structure and plant diversity of Keteleeria fortunei var.cyclolepis in Guangze County were analyzed.Result shows that there are 48 families,72genera &92species vascular plant within an area of 2 000m2 in this community.Phaenerophyte(accounted for 80.44%)is the dominant in the community,life-form spectrum indicated a typical subtropical climate in the study area.A complex diameter and height structure and rich species diversity are found in the community.Species diversity and evenness indices are all in the order:shrub layer> tree layer>liana layer> herb layer,representative of the typical subtropical evergreen broad-leaved forest.K fortunei var.cyclolepis is dominant in tree layer of the community,but its seedlings and saplings in the shrub layer is in low number,they are subjected to severe competition from other plant species(mainly woody plant species),and the population may decline in the future.
出处
《防护林科技》
2016年第4期11-16,共6页
Protection Forest Science and Technology
关键词
江南油杉
群落结构
植物多样性
Keteleeria fortunei var.cyclolepis
community structure
plant diversity
