双季稻秸秆还田方式对土壤碳库和甲烷排放强度的影响

梁威, 李虎, 郑华斌, 王慰亲, 唐启源

Effects of Double Cropping Rice Straw Returning Method on Soil Organic Carbon Fixation and Methane Emission Intensity

Liang Wei, Li Hu, Zheng Huabin, Wang Weiqin, Tang Qiyuan

表1 不同处理秸秆还田量

Table 1 Straw returning amount of different treatments

处理 Treatment 2023 2024 早稻 Early rice 晚稻 Late rice 早稻 Early rice 晚稻 Late rice CK 0 0 0 0 T1 100%烧灰 100%烧灰 100%烧灰 100%烧灰 T2 1809 kg/hm2 2429 kg/hm2 2139 kg/hm2 2668 kg/hm2 T3 2384 kg/hm2 2553 kg/hm2 3022 kg/hm2 3209 kg/hm2 T4 5816 kg/hm2 8097 kg/hm2 7130 kg/hm2 8892 kg/hm2