Carbon cycle played an important role in the researches of global climate change, however, only few works on carbon dynamics from the alpine grassland ecosystem on Tibetan Plateau have been reported. Using close chamber technique, the determination of carbon emissions from the alpine grassland soil of Wudaoliang area in Qinghai Province showed that the mean fluxes of CO 2 and CH 4 from alpine grassland soil in growing season were 0.46μmol·m -2·s -1 and -0.43×10 -3μmol·m -2·s -1, respectively. The emi...