A field plot experiment was conducted to investigate the effects of different combined application ratio of organic-inorganic fertilization on CH4 and N2O emissions in paddy season in a wheat-rice double cropping system by using the method of static chamber gas chromatographic-box techniques in 2015. The rice cultivar of Wuyunjing 29 was field-grown. Under the condition of equivalent nitrogen substitution, five treatments such as single chemical fertilization application (M1), and 25% organic fertilizer (M2), 50% organic fertilizer (M3), 75% organic fertilizer (M4), 100% organic fertilizer (M5) instead of chemical fertilizer were designed. And the greenhouse effect of CH4 and N2O emissions from paddy field was calculated by using global warming potentials (GWP). The results showed that: (1) the seasonal variation in CH4 emissions was consistent in different treatments, but there was significant difference for CH4 emissions amount, which was 203.37, 242.06, 255.04, 288.06, 334.46 kg·hm-2from M1 to M5 treatments, respectively. The seasonal variations in N2O emissions was consistent in different treatments, but there was significant difference for N2O emissions amount, which was 3.96, 3.43, 3.27, 2.97, 2.60 kg·hm-2from M1 to M5 treatments, respectively. (2) Turns of global warming potentials (GWP) of CH4 and N2O emissions was M5 > M4 > M3 > M2 > M1 in different treatments of rice season, and M5 treatment significantly increased GWP (9136.8 kg·hm-2). (3) Comparison with M1 treatment of single chemical fertilization application, organic fertilizer instead of chemical fertilizer increased greenhouse effect in rice field in the Taihu area. However, M3 treatment of 50% organic fertilizer instead of chemical fertilizer ensured rice yield, and the GWP of per unit rice yield was the lowest in different treatments, so it was a relatively suitable replacement ratio of organic fertilizer instead of chemical fertilizer.%2015年通过大田小区试验，以粳稻品种武运粳29号为供试材料，在等氮量有机肥替代化肥条件下，设置5个不同有机-无机肥配施比例处理，采用静态箱暗箱-气相色谱法，对水稻生长季稻田 CH4和 N2O 排放通量进行观测，并运用全球增温潜势（global warming potentials，GWP）对稻田CH4和N2O排放的温室效应进行测算。结果表明：（1）不同处理稻季CH4排放的季节性变化趋势基本一致，但排放量大小差异显著，单施化肥（M1）、25%有机肥（M2）、50%有机肥（M3）、75%有机肥（M4）、100%有机肥（M5）替代化肥处理稻季CH4累积排放量分别为203.37、242.06、255.04、288.06、334.46 kg·hm-2；不同处理稻季N2O排放的季节性变化趋势也基本一致，但排放量大小差异显著，M1、M2、M3、M4、M5处理稻季N2O累积排放量分别为3.96、3.43、3.27、2.97、2.60 kg·hm-2；（2）不同处理稻季排放CH4和N2O产生的增温潜势高低顺序为：M5>M4>M3>M2>M1，M5处理的增温潜势为9136.8 kg·hm-2；（3）有机肥替代化肥与单施化肥比较，增加了太湖地区的稻田温室效应，但是，50%有机肥替代化肥的M3处理在获得较高水稻产量的同时，其单位产量的全球增温潜势在配施有机肥的各处理中表现为最低，是相对适宜的有机肥替代化肥的替代比例。
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