Preliminary Results of a Study on CH4 Flux in Xilin River Basin Steppe Under Different Grazing Intensities A preliminary study of carbon dioxide, methane and nitrous oxide fluxes from the Gahai wetland The CH4 uptake flux by soils of main forest ecosystems in Dinghushan The controlling factors and coupling of soil CO2, CH4 and N2O fluxes in a temperate needle-broadleaved mixed forest