摘要
大型固定监测森林样地已成为研究森林群落组织机制的一个重要平台。群落里个体之间的相互作用对群落的构建有相当重要的作用。以往的研究主要针对于物种之间的相互作用,而用群落里单个物种与其它所有个体之间相互关系来解释群落构建的研究还很少。采用单个物种-面积关系(ISAR)这一指标对鼎湖山20 hm2样地和BCI 50 hm2样地数据分析,来研究不同样地单个物种是如何对森林群落进行构建的。结果显示,与BCI样地和Sinharaja样地不同,鼎湖山样地大树对周围其它个体的作用几乎是中性的;而对于小树(胸径小于10 cm)来说,鼎湖山样地和BCI样地一样,随着尺度的增加"吸引型"物种减少,而"中性"物种增加。说明了不同的群落在不同的发育阶段,单个物种对群落结构的构建有重要的作用不同,将来的研究应该结合群落其它方面的因素来分析群落内个体之间相互作用,例如从时间尺度的谱系和空间因素去分析。
The large permanent forest plots have been an important platform for researches in community constructions.Interaction of individuals in community plays an important role in construction of community.Previous studies mostly focused on the interac-tions among species,and few of attentions were paid to how individual species construct a community.Comparative with result of BCI plot,we used the individual species-area index（ISAR） to analyze how the individual species construct the community in DHS plot.The result revealed that,unlike BCI plot and Sinharaja plot,majority of big trees are neutral in DHS plot.For smaller trees,both BCI and DHS plots showed a similar result that the number of accumulator species decreased along with the increase of radius scale,while neutral species increased.This indicated that individual species plays a different role in construction of different community at different development stages.Further studies should be focused on the forward exploitation,integrating others community informa-tion（such as,phylogeny and spatial structure et al） in the role of individual species on community.
出处
《生态环境学报》
CSCD
北大核心
2011年第6期991-995,共5页
Ecology and Environmental Sciences
基金
国家自然科学基金项目(0911101001)
