Study on the biomass of rangelands located on different vertical band spectrums in Zhaosu Horse Farm

The aboveground and underground biomass of different grassland types in Zhaosu Horse Farm was determined. The results indicated that the underground biomass was mostly distributed within 0 to 10 cm of soil layer and showed a Tshape distribution pattern. The underground biomass varied among different grassland types. The underground biomass varied greatly among different grassland types, while the aboveground biomass showed a little variation. The order of total biomass of different grassland types was subalpine meadow meadow on alluvial plain meadow in midmountain meadow in hill steppe in hill meadow steppe in hill steppe in river flat.