大方福建柏保护区福建柏种群结构研究  

Study on Structure of Fokienia hodginsii Population in Dafang Nature Reserve

作　　者：骆强[1] 游泳[2] 陈坤浩[1] 

机构地区：[1]毕节学院环境与生命科学系,贵州毕节551700 [2]贵州省毕节地区科学技术情报研究所,贵州毕节551700

出　　处：《安徽农业科学》2008年第17期7227-7228,共2页Journal of Anhui Agricultural Sciences

基　　金：毕节地区科学技术项目[毕科合字(2007)15号]

摘　　要：福建柏(Fokienia hodginsii)为我国特产的珍贵稀有裸子植物,通常以散生状态分布于常绿阔叶林中,在大方福建柏保护区形成以福建柏为主的常绿针叶林在国内尚不多见。对福建柏种群的结构和空间分布格局进行了分析,结果表明:大方福建柏保护区的福建柏种群总体为不完全种群,特别是一些中等大小径级或更新层的缺失使之成为一种不连续种群。随着年龄增长,种内竞争加剧,种群密度下降,种群的分布格局由集群分布变为随机分布。Fokienia hodginsii is rare gymnosperm in china, which distributed in the evergreen broad-leaved forests of Dafang Fokienia hodginsii Nature Reserve. The structure and distribution pattern of Fokienia hodginsii population in Dafang Nature Reserve were studied. The results showed that Fokienia hodginsii population was incomplete because of the lack of some middle-size classes and the regeneration layer. Competition increased, and population density decreased with the growth of age. The structure and distribution pattern of Fokienia hodginsii population in Dafang Nature Reserve changed from clump distribution to poisson distribution.

关 键 词：福建柏 种群 集群分布 随机分布 

分 类 号：S791.43[农业科学—林木遗传育种]