Nitrification and denitrification are two microbial processes to produce N2O in soil.Water management is an important factor affecting N2O emission from rice paddy field.

• 硝化反硝化是土壤中N2O生成的两个主要的微生物过程，水分管理是影响稻田土壤N2O产生排放的重要因素之一。