CH4 and N2O Emissions from Rice Paddy Fields in Southeast China
华东稻田CH4和N2O排放

The seasonal variations of CH 4 and N 2O emission from rice fields are completely different. The N 2O emission intensively increases while CH 4 emission decreases because of drainage. However, their patterns of diurnal variations are similar. The maximum emissions of both gases usually occur in the afternoon on clear days. Sometimes, another smaller peak of CH 4 emission could be observed during the night. Significant effects of fertilizer application on N 2O and CH 4 emissions were also detected.