海子坪天然水竹无性系种群结构初步研究

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水竹林进行调查，以竹类无性系种群生态学理论为基础，运用分析软件进行分析研究，结果表明：（1）海子坪水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，在整个种群中所占的分株比例逐渐减少；（2）海子坪天然水竹无性系种群出现低矮化和纤细化的衰退现象；（3）根据地径、胸径与分株高度的规律拟舍出天然水竹无性系种群分株高度的一元线性方程分别为H=0．9631＋1．7493X地、H=1．5007＋1．6588X胸。

Preliminary Studies on the Structures of Natural Forest of Phyllostachys heteroclda Clone Population in Halziping

This paper was by the investigation on natural forest of Phyllostachys heteroclda of great number distribution within the area of natural protectal region of Haiziping in Yunnan province and the analysis software was put into use based on the theory of ecology of bamboos clone population. The relults are as follows： （1） The total trend of age structures of natural forest of Ph. heteroclda clone population drop down with the increasing of ramet age in the ramet ratio of whole population; （2） The degradation phenomenon of dwarf and thinning was showen in the Natural Forest of Ph. heteroclda Clone Population in Haiziping; （3） The linear equation （H=0. 9631＋1. 7493X（base diameter）、H= 1. 5007＋1. 6588XDBH）of ramet height of natural Ph. heteroclda was drafted according to the regulation of base diameter.DBH and ramet height.