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cje ›› 1993, Vol. ›› Issue (5): 13-16.

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Calorific Value and Its Seasonal Dynamics of Fodder Shrub Species on Tianzhu Alpine Grasslands

LongRuijun, Xi Changlin, Hu Zizhi, Ding Wenguang, Zhang Yinsheng, Kang Tianfu   

  1. Gansu Agricultiiral Universily, Lanzhou 730070
  • Received:1992-07-08 Online:1993-10-10

Abstract: Shrubs tested have a higher calorific value in their dormant period than in growing stages,and Salix hasthe highest one, The calorific value of herbs is significantly lower than shrubs,.There are three monthlydynamic types of calorific value for shrubs:smooth(7 species), increasing(5 species ) and“V”(3 species)types. Same farnily or genus belongs to either same or different type,but different families or genera al-ways belong to the same type, The calorific value of shrubs is controled by their heredity and also influ-enced deeply by ecological environmental conditions under which they live.

Key words: individual-based model, physical model, chub mackerel (Scomber japonicas), early life history, eggs and larvae, transport, connectivity.