Relationships between nitrogen fertilizer application and nitrous oxide emission in Leymus chinensis grassland

摘要

Nitrous oxide (N2O) as one of the most important greenhouse gas, it is atmospheric concentrations that had rapidly increased since the industrial revolution owing to anthropogenic disturbance of the global nitrogen cycle, especially with the use of nitrogen (N) fertilizer in agricultural progress.Numerous documents had recorded that the N fertilizer application has a largely influence on N2O emissions in farmlands.However, limited attention was paid to the relationships between nitrogen fertilizer applications and N2O emissions.