海子坪天然方竹无性系种群结构研究

通过对云南省海子坪省级自然保护区境内分布的大面积天然方竹林的调查,以竹类无性系种群生态学理论为基础,运用分析软件进行研究。结果表明:(1)天然方竹无性系种群年龄结构的总体趋势是随着分株年龄的增大,分株在整个种群中所占的比例逐渐增大;(2)该天然方竹无性系种群已呈现出低矮化、纤细化的衰退现象;(3)根据地径、胸径与分株高度的生长规律,拟合出该无性系种群分株高度的一元线性方程。

Studies on Structures of Clone Population of Natural Chimonobambusa quadrangularis Forest in Haiziping Natural Reserve

This paper investigated large-area natural Chimonobambusa quadrangularis forest distributed within Haiziping Natural Reserve in Yunnan Province based on the theory of ecology of bamboos clone population with the use of analysis software. The results were as follows: (1) The age structures of clone population of natural Ch. quadrangularis forest represented the overall tendency that ramets made up the increasing proportion in the whole population with the increasing of ramet age; (2) The clone population showed the degradation phenom- enon of dwarfism and thinning; (3) The linear equation of ramet height of the clone population was fitted according to the growth rule of base diameter,DBH and ramet height.