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...
出处
《林业科学研究》
CSCD
北大核心
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)
关键词
濒危植物
白桂木
种群结构
分布格局
endangered species
Artocarpus hypargyreus
population structure
spatial distribution pattern
