白桂木的种群结构和空间分布格局研究  

A Study on Structure and Spatial Distribution Pattern of Artocarpus hypargyreus Population

作　　者：范繁荣[1] 潘标志[2] 马祥庆[1] 沈琼桃 谢荣樟 

机构地区：[1]福建农林大学林学院,福建福州350000 [2]福建省林业厅,福建福州350003 [3]福建三明林业学校,福建三明365001 [4]福建省三明市梅列区林业局,福建三明365000

出　　处：《林业科学研究》2008年第2期176-181,共6页Forest Research

基　　金：福建省林业厅科研项目"珍贵树种白桂木的驯化研究"(闽林[2001]科12-9)

摘　　要：采用空间序列代替时间序列的方法,对白桂木5个种群进行统计分析,编制种群的特定时间生命表,应用聚集强度指数进行种群分布格局分析。结果表明:白桂木种群结构呈纺锤形,幼苗严重不足,种群有衰退趋势;存活曲线基本接近DeeveyⅡ型;种群分布格局整体呈聚集分布。With the method of spatial series substituting for time series,five populations of Artocarpus hypargyreus were analyzed,its time-specific life table was analyzed,its distribution pattern was discussed by assembling intensity index.The results showed that the population structure of Artocarpus hypargyreus was a spindle type.The age structure of the population of Artocarpus hypargyreus was declining due to lack of seedlings;the survival curve of Artocarpus hypargyreus population belonged to DeeveyⅡ type;the o...

关 键 词：濒危植物 白桂木 种群结构 分布格局 

分 类 号：S718.5[农业科学—林学]