【摘要】 为了解竹林结构对粗放经营毛竹林新竹产量的影响,在桃江县武潭镇经营粗放的毛竹林中,对随机选取的21块标准地进行样地调查和数据分析。结果表明:桃江粗放经营毛竹林的立竹密度与单位面积新竹数量及地上部分生物量均符合二次曲线关系;随着立竹密度的增加,单位面积新竹数量呈先下降后上升的趋势;立竹胸径与新竹胸径、新竹整齐度、新竹地上部分生物量均有显著或极显著的线性正相关关系;新竹的立竹胸径和单位面积数量受现存立竹年龄的影响明显,特别是Ⅱ～Ⅲ度母竹对新竹产量影响较大。更多还原

【Abstract】 In order to research the effect of bamboo structure on yield of young bamboo forest,21 standard plots was investigated and analyzed,which was selected randomly in extensive management young bamboo forest of Wutan Town in Taojiang County. The results showed that,the relationship was quadratic curve between the density of standing bamboo and above-ground biomass of young bamboo in forest. The number of young bamboo decreased first and then increased with the increase of bamboo density. There were significant or extremely significant positive correlations between the DBH of standing bamboo and the DBH,regularity and above-ground biomass of young bamboo. The DBH of standing bamboo and quantity of young bamboo were affected obviously by standing bamboo,especially affected by the 2 to 5 years old standing bamboos.更多还原