A field survey was conducted to determine the effects of different fire periods after 2 and 10 years on the importance value of different plants,average height,cover,abundance,above-ground biomass,diversity and litter accumulation of Stipa bungeana community in the Yunwu Mountain.This study showed that S.bungeana and Carex rigesaens were the co-dominant species in the three blocks,and Artemisia sacrorum had become subdominant species in the plot with 2 years after fire and control,while Leymus secalinus had...
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