CH4 and N2O fluxes from late-rice fields in Guangzhou region and their affecting factors Field measurement of N2O flux from soybean plant and effect of light on it Research on Key Greenhouse Gas Fluxes across Alpine Steppe, Alpine Meadow and Swamp Meadow in Nam Co, Tibetan Plateau N2O flux characteristics and emission contributions of Calamagrostis angustifoliawetland during growth and non-growth seasons Role of several upland crops in N2O emission from farmland and its response to environmental factors Effects of bamboo leaves and their biochar additions on soil N2O flux in a Chinese chestnut forest