Abstract: Rice is one of the most important food crops in our country. Two major greenhouse gases, methane (CH4) and nitrous oxide (N2O), play significant roles in global greenhouse effect. This paper reviewed the effects of irrigation, fertilization, rice varieties, cropping patterns, soil\|climatic conditions and other factors on emissions of CH4 and N2O from rice fields. Considering the synthetic greenhouse effect, some measures of reducing greenhouse gas emission in rice fields were also put forward such as varieties and cultivation, fertilization and pesticide application, improving farming system, development of biogas energy technologies, etc. This paper might provide some references for developing low carbon technology in rice field．

Key words: rice field, greenhouse effect, methane, nitrous oxide, reduction of emission