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应用生态学报 ›› 1994, Vol. 5 ›› Issue (4): 428-431.

• 研究论文 • 上一篇    下一篇

高寒草甸生态系统中牦牛体重和采食量动态模型的研究

黄大明1, 赵松岭2   

  1. 1. 清华大学生物科学与技术系, 北京 100084;
    2. 兰州大学, 兰州 730000
  • 收稿日期:1992-01-26 修回日期:1993-08-28 出版日期:1994-10-24 发布日期:1994-10-24

Dynamic models of yak liveweight and its intake in alpine meadow ecosystem

Huang Daming1, Zhao Songling2   

  1. 1. Qinghua University, Beijing 100084;
    2. Lanzhou University, Lanzhou 730000
  • Received:1992-01-26 Revised:1993-08-28 Online:1994-10-24 Published:1994-10-24

关键词: 扁刺栲, 氮沉降, 根化学, 根序, 根形态

Abstract: Yak is one of the important livestock species in alpine animal husbandry of our country. Aliveweight dynamic model of grazing yak is established on the basis of its average liveweight data per month in alpine meadow ecosystem. Moreover, quantitative relationships between the liveweight and the intake, faeces, urine and methane are determined according to the results of experimental researches.

Key words: Alpine meadow ecosystem, Yak, Liveweight dynamic model, root branch order, Castanopsis platyacantha, root chemistry, nitrogen deposition, root morphology