大围山山地雨林乔木层物种多度分布格局研究

对大围山国家级自然保护区山地雨林物种-多度格局研究表明:大围山原生及受人为干扰较小的山地雨林群落其乔木层树种的物种多度分布符合对数级数分布,物种间个体数的差异显著,表征了山地雨林群落的稀疏种数目远大于富集种.研究还表明:物种多度格局与物种多样性指数结合使用可更好地研究群落的结构特征,受人为干扰较小及相对发育成熟的山地雨林群落,具有较高的生物多样性和较大的稳定性.

Study on the Distribution Pattern of Arboreal Species Abundance of Mountainous Rain Forest in Dawei Mountains,Yunnan,China

The study on distribution pattern of arboreal species abundance of mountainous rain forest in Dawei Mountains National Nature Reserve,Yunnan Province showed that the distribution of arboreal species abundance in the primary and less disturbed mountainous rain forests in the studied area accorded with Logarithmic series distribution,and the difference in species population was striking,representing that the number of sparse species was much greater than that of enriching species.It was also proven by the study that the index combination of species abundance with species diversity could show better the structure characteristics of the communities to be studied.The comparatively mature mountainous rain forests and the rain forests suffered less disturbance from human beings had greater biodiversity and stronger stability.