Studies on energy allocation to growth and reproduction in Leymus chinensis population show that the average calorific value of modulus was decreased in the order of ear>leaf sheath of vegetative shoot>leaf sheath of sexual shoot>leaf of vegetative shoot>stem of vegetative shoot>stem of sexual shoot>leaf of sexual shoot>litter,and the energy allocation rate of vegetative and reproductive growth was in the order of vegetative shoot>rhizome>litter>sexual shoot.The dynamics of energy allocation rate of mod...