Zhou Shi-qiang, Huang Jin-yan, Zhang Ya-hui, Li Ren-gui, Li De-sheng, Zhang He-min
China Conservation and Research Center for the Giant Panda, Wolong 623006, Sichuan, China.
Ying Yong Sheng Tai Xue Bao. 2010 Jul;21(7):1709-17.
From 2003 to 2007, the methods of plot sampling and positioning observation were adopted to investigate the population density, basal diameter, and plant height of Umbrella bamboo (Fargesia robusta) clone in the Wolong Natural Reserve of China. In the meantime, the effects of wilderness-training Ailuropoda melanoleuca's feeding and artificial harvesting on the population regeneration of the clone were studied, and the responses of the population structure (age-, size-, and height-class distribution) to different management modes (A. melanoleuca's feeding, artificial harvesting, control) were approached with the scale- and shape-parameters of Weibull distribution function. The results showed that under the same F. robusta clone population density and the same environmental conditions (P>0.05), A. melanoleuca's feeding and artificial harvesting promoted the clone regeneration. After 3 years natural restoration, the population density of the clone tended to be equal to the control, and came to a steady state (P>0.05). The curves of size- and height-class distribution as well as the scale- and shape-parameters had no significant differences between A. melanoleuca's feeding plot and control plot. The curves of size- and height-class distribution in artificial harvesting plot were in converse "J" shape, and the values of the scale- and shape-parameters were significantly lower than those in the other two plots (P<0.05). The young and adult bamboos in artificial harvesting plot were far poor in shoot quality, and A. melanoleuca rejected to feed with them.
2003年至2007年，采用样地调查和定位观测的方法，对中国卧龙自然保护区缺苞箭竹（Fargesia robusta）无性系种群的密度、基径和株高进行了调查。同时，研究了野外训练大熊猫的取食和人工采伐对该无性系种群更新的影响，并运用威布尔分布函数的尺度和形状参数探讨了种群结构（年龄级、径级和高度级分布）对不同管理方式（大熊猫取食、人工采伐、对照）的响应。结果表明，在缺苞箭竹无性系种群密度相同且环境条件相同的情况下（P>0.05），大熊猫取食和人工采伐均促进了无性系更新。经过3年的自然恢复，无性系种群密度趋于与对照相等，并达到稳定状态（P>0.05）。大熊猫取食样地与对照样地的径级和高度级分布曲线以及尺度和形状参数无显著差异。人工采伐样地的径级和高度级分布曲线呈反“J”形，尺度和形状参数值显著低于其他两个样地（P<0.05）。人工采伐样地的幼竹和成竹笋质量较差，大熊猫拒绝取食。
