冷箭竹更新幼龄无性系种群结构的研究

本文分析了卧龙自然保护区冷箭竹更新幼龄无性系种群的龄级结构、径级结构和高度结构及其与生境条件的关系。结果表明；冷箭竹更新幼龄无性系种群为一增长种群；径级处于小径阶区域，主要位于０．００－０．１５ｃｍ之间；高度结构呈倒“丁”字型，随着高度级的增加，植株数量表现出递降趋势。同时，不同林分类型和海拔高度内冷箭竹的种群结构具有不同的分布格局，这与微生境、林分郁闭度、群落结构和野生动物影响密切相关。

A STUDY ON THE CLONAL POPULATON STRUCTURE OF YOUNG BASHANIA FANGIANA AFTER NATURAL REGENERATION

it is studied in this paper that the clonal population structure of age, diameter and height class of young Bashania fangiana after natural regeneration in the Wolong Nature Reserve, meantime, analysed the relationship of population structure and its environmental condition. Results have shown that the clonal population of young Bashania fangiana is a growth population; its diameter class is in the little diameter ranges,and between 0.00-0. 15cm of bamboo's basic diameter; the height class is a reverse "J"model, with the height class increasing, the bamboo individual amount should show the decline tendency. the clonal population structure of young Bashania fangiana has different distribution patterns in different forest types and altitudes, it relates to the microhabitat.forest coverage.community structure and wild animal movement.