摘要
本文分析了3种天然次生林群落下和皆伐迹地上刺五加种群的年龄结构、表现结构,结果表明,在天然次生林中,刺五加种群的发展与群落的演替一致,为进展种群。该种群的平均年龄与其所处群落的稳定性有关,而其最大年龄及平均密度与群落中的自然环境、干扰程度等有关。其株数随年龄而变化。林下和皆伐迹地上的刺五加表现结构因群落生境、干扰程度和种群年龄阶段不同而有较明显差异。
In this paper,the age and performance structures of Acanthopanax senticosus population under three natural secondary forests and on cleared area are analyzed. It's shown that under fiatural secondary forests, the development of A. senticosus population is consisted with community succession, being a progressive population. The mean age of this population is positively correlated with community stability, and its maximum age and mean density are related to physical environment and disturbed level. The number of its individual plants varies with age, and its performance structure (height, weight and diameter class) has significant difference under forests and on cleared area, owing to the difference of habitats, disturbed levels and age stages.
出处
《应用生态学报》
CAS
CSCD
1993年第2期113-119,共7页
Chinese Journal of Applied Ecology
基金
国家自然科学基金
关键词
种群结构
刺五加
无性系
Acanthopanax senticosus, Clonal plant, Population structure.
