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本文研究了卧龙自然保护区冷箭竹更新幼龄无性系种群冠层结构的数量特征。结果表明：1983年开花枯死后自然更新形成的冷箭竹幼龄种群，其冠层结构的龄级变化呈正态分布格局，峰值点位于3～5龄级，种群冠层结构的各项指标分别为冠层高度10．00cm、竹枝数量21．02枝／m2、竹枝长度6．60cm、叶片数量799．40片／m2、叶长3．65cm和叶宽0．56cm。不同林分类型的种群冠层结构相异，各项指标的排序递次是岷江冷杉─冷箭竹林＞铁杉十糙皮桦─冷箭竹林＞铁杉十红松─冷箭竹林；而且随着海拔高度的变化，种群的冠层结构表现出与种群密度、生物量和种群结构相似的动态曲线。
In this paper, we studied the quantitative characteristics of the canopy structure of cold-cloned bamboo populations in Wolong Nature Reserve. The results showed that the age-class changes of canopy structure formed by natural regeneration after flowering and withering in 1983 showed a normal distribution pattern, with the peak point located at the 3rd to 5th grade, and the indexes of the canopy structure were respectively The height of the canopy is 10.00 cm, the number of bamboo branches is 21.02 branches / m2, the length of bamboo branches is 6.60 cm, the number of leaves is 799.40 pieces / m2, the leaf length is 3.65 cm and the leaf width is 0.56 cm. The canopy structure of different forest types was different, and the order of the indexes was Minjiang fir-cold-frozen bamboo> hemlock-ten-birch-cold-frozen bamboo> hemlock-tenomus-cold-frozen bamboo forest. And with the elevation above sea level The canopy structure of the population shows a dynamic curve similar to that of population density, biomass and population structure.