在欧美国家,黑麦秸秆经常作为有机肥或农业废弃物而归还到农田中。本研究通过培养试验探讨了添加黑麦秸秆对土壤中无机氮的形态转化和N_2O、CO_2释放的影响。研究结果表明,黑麦秸秆的添加量及培养时间对土壤中N_2O、和CO_2释放量、N_2O/CO_2比值和无机氮形态转化均有明显影响。添加的黑麦秸秆越多,培养2周后土壤中的NH_4-N越多,释放的N_2O则越少。N_2O/CO_2比值与黑麦秸秆添加量呈极显著的负相关,与培养时间(T)的函数关系(达到极显著的负相关)则呈对数形式:(N_2O/CO_2)=a+b·lnT。 In Europe and the United States, rye straw is often returned to farmland as organic fertilizer or agricultural waste. In this study, we investigated the effects of ryegrass addition on the forms of inorganic nitrogen and the release of N 2 O and CO 2 in soil. The results showed that the amount of Rye straw and culture time significantly affected the N_2O, CO_2 release, N_2O / CO_2 ratio and inorganic N transformation in soil. The more rye straw was added, the more NH_4-N in the soil after 2 weeks culture, the less N_2O released. The N 2 O / CO 2 ratio was significantly negatively correlated with rye straw addition, and was logarithmic as a function of culture time (T) (N 2 O / CO 2) = a + b · lnT.