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 the biomass of Fargesia denudata clonal population

作　　者：赵文倩 陈丽娟[1] 甘小洪[1] ZHAO Wenqian;CHEN Lijuan;GAN Xiaohong(College of Life Science,China West Normal University,Nanchong 637009,China)

机构地区：[1]西华师范大学生命科学学院,四川南充637009

出　　处：《四川林业科技》2025年第2期38-44,共7页Journal of Sichuan Forestry Science and Technology

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。Fargesia denudata,the staple food of giant panda in Tangjiahe Nature Reserve,Sichuan Provincem,was studied,and the changes of biomass and water content of F.denudata in feeding plots and control plots were investigated,so as to explore the impact of wild giant panda feeding on the biomass of F.denudata clonal population.The results showed that the dry matter content of F.denudate at different ages increased after feeding,and the dry matter content of culms,branches and leaves in feeding plots was all higher than those of the control plots.There was no significant difference in the biomass of each component of F.denudata between the feeding plots and the control plots.At the individual level,the water content of F.denudata in different quadrats decreased after giant panda feeding.At the component level,however,the water content of one-year-old bamboo stems and two-year-old and perennialyear-old bamboo leaves of F.denudata increased significantly after giant panda feeding.The results showed that wild giant panda feeding had little impact on the biomass of F.denudata clonal population,and the bamboo biomass could recover to its pre-feeding level through its own growth,thereby continuously providing food resources for giant pandas.

关 键 词：缺苞箭竹 种群生物量 大熊猫 采食 唐家河自然保护区 

分 类 号：S718.5[农业科学—林学]