Hadley E B, Buccos R P.Plant community composition and net primary production within a native Eastern North Dakota prairie[J]. American Midland Naturalist, 1967,77(1):116-127.
[2]
Heal O W, Perkins D F. Studies on montane grassland and moorlands[J]. Philosophical Transactions of the Royal Society of London(Series B),1976,274: 95-314.
[3]
Sims P L, Singh J S. The structure and function of ten western North American grasslands Ⅲ. Net primary production, turnover and efficiencies of energy capture and water[J]. Journal of Ecology, 1978,66(2): 573-597.
Xiao X M,Wang Y F,Jiang S, et al. Interannual variation in the climate and above-ground biomass of Leymus chinense steppe and Stipa grandis steppe in the Xilin river basin, Inner Mongolia, China[J].Journal of Arid Environment,1995,31:283-299.
[12]
Xiao X M, Jiang S, Wang Y F, et al. Temporal variation in aboveground biomass of Leymus chinense steppe from species to community levels in the Xilin River Basin, Inner Mongolia, China[J].Vegetation,1996,123:1-12.