乔木林郁闭度与林下天然筇竹林分布及生长状况的关系研究

Effects of Arbor Canopy Closure on the Distribution and Growth of Understory Natural Qiongzhuea tumidinoda

水富市是昭通市筇竹资源分布比较集中的地区之一,通过对水富天然筇竹林随机布设样方进行调查,统计分析了乔木林郁闭度对筇竹地径和高度、密度和分布的影响。最适宜筇竹生长的乔木林郁闭度是0.3~0.4之间,乔木林郁闭度对林下筇竹的地径和高没有显著影响,但对林下筇竹的密度有显著影响。

Shuifu city is one of the areas with concentrated distribution of Qiongzhu resources in Zhaotong City.Through the investigation of randomly arranged quadrats of Shuifu natural Qiongzhu forest,the effects of canopy density of arbor forest on the ground diameter,height,density and distribution of Qiongzhu were statistically analyzed.The canopy density of arbor forest most suitable for the growth of Qiongzhu was 0.3-0.4.The canopy density of arbor forest had no significant effect on the ground diameter and height of Qiongzhu under the forest,but had a significant effect on the density of Qiongzhu under the forest.