福建三元地区毛竹林均匀性研究

以福建三元地区毛竹林为研究对象，利用均匀度和角尺度两个指标，并结合毛竹的年龄，对该地区毛竹林的均匀性进行了研究。结果表明：1）在均匀度方面，毛竹林均匀度具有尺度效应，各尺度下的均匀度大小相差悬殊，其在大尺度上分布相对均匀，而在小尺度上分布极不均匀；从年龄角度分析毛竹的均匀度，各度毛竹的均匀度相关性不显著。2）在角尺度方面，毛竹等各树种在样地1、4、5、6内为团状分布或不均匀分布，在样地2、3、7、8内为均匀分布；从年龄方面来分析毛竹的角尺度，各度毛竹角尺度之间的相关性都未达到显著性水平，分析结果与均匀度基本一致。

The Uniformity of Moso Bamboo Forests in Sanyuan District of Fuj ian Province

In terms of evenness and uniform angle indexes,the study explores the distribution uniformity of Moso bamboo forests with different ages in Sanyuan district,Fujian province. The results show that：1 ）the evenness of Moso bamboo forest has scale effect;the uniform size of each scale is different;its distribution in large scale is relatively uniform,while in small scale it is very unevenly distributed;in terms of age,there is no significant correlation between the degree of uniformity of Moso Bamboo.2 ）Based on uniform angle index analysis,Moso bamboo and other tree species have very clumped distribution or uneven distribution patterns in plots 1,4,5,6.Furthermore,they are in uniformity in plots 2,3,7,8.There is no signifi-cant relationship between ages and evenness or uniform angle index.