宝华山南京椴群落的特征分析

A community characteristics analysis on Tilia miqueliana in Baohua Mt

根据野外调查结果,分析宝华山天然南京椴群落特征。结果表明:该群落植物种类丰富,地理成分较为复杂,主要由温带和热带区系成分组成,并具有明显的过渡性特征。群落层次分明,有乔木、灌木和草本3个层次,其中乔木层可分为3个亚层。群落层间植物较为丰富。南京椴群落物种多样性由高到低依次为灌木层、草本层、乔木层。群落中南京椴处于生长衰退期,天然更新缺乏,在群落中处于很不稳定的地位。

Based on investigation, the community characteristics of Tilia miqueliana in Baohua Mt. were analyzed. The results showed that the composition of its flora was abundant and complex, the temperate and tropical floristic elements occupied a certain proportion, and with especially transitional character obvious tropical nature. The community was divided into three distinct layers, tree, and shrub and herb layers; meanwhile the tree layer was divided into three sub-layer. The species of interlayer plants was rich. The species diversity of the community was shrub layer〉herb layer〉tree layer. T. miqueliana in the community was at the period of declining, in short of natural regeneration, and in very unstable position.