用微信扫码二维码

分享至好友和朋友圈

WE ARE COMMITTED TO REPORTING THE LATEST FORESTRY ACADEMIC ACHIEVEMENTS

野生大熊猫采食对缺苞箭竹无性系种群生物量的影响

Effects of Wild Giant Panda Feeding on Biomass of Fargesia denudata Clonal Population

  • 摘要: 通过对四川唐家河国家级自然保护区内大熊猫主食竹缺苞箭竹(Fargesia denudata)研究,分析了大熊猫采食样方和对照样方内缺苞箭竹的生物量和含水量变化情况,以探讨野生大熊猫采食对缺苞箭竹无性系种群生物量影响。研究显示,采食后不同龄级缺苞箭竹干物质含量均增加,且秆枝叶各构件采食样方干物质含量高于对照样方;缺苞箭竹各构件生物量在采食样方与对照样方之间没有显著差异。在个体水平上,不同处理样方内缺苞箭竹在大熊猫采食后含水量均减少;在构件水平上,大熊猫采食后缺苞箭竹1年生竹秆以及2年生和多年生竹叶的含水量明显增加。结果表明,野生大熊猫采食对缺苞箭竹无性系种群生物量的影响不大,采食后的竹子生物量能够通过自身生长恢复到采食前,从而持续为大熊猫提供食物资源。

     

    Abstract: The biomass variation of Fargesia denudata in Tangjiahe Nature Reserve before and after feeding by giant pandas was investigated in order to discuss the impact of wild giant panda feeding on the biomass of its clonal population. After feeding, the dry material content of F. denudate at different ages increased, and the dry material content of culms, branches and leaves in feeding plots was all higher compared to control plots. There is no significant difference in the biomass of various components of F. denudata between the feeding plots and the control plots. At the individual level, the water content of F. denudata decreased in both feeding and control plots after giant panda feeding. At the component level, however, the water content of one-year-old bamboo stems and two-year-old and perennial-year-old bamboo leaves of F. denudata increased significantly after giant panda feeding.The results showed that wild giant panda feeding has little impact on the biomass of the clonal population of F. denudata. The bamboo biomass can recover to its pre-feeding level through its own growth, thereby continuously providing food resources for giant pandas.

     

/

返回文章
返回