立式深旋耕作对马铃薯农田土壤温室气体排放的影响
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缪平贵, 于显枫, 张绪成, 方彦杰, 侯慧芝, 王红丽, 马一凡, 窦学诚
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Effects of Vertical Deep Rotary Tillage on Soil Greenhouse Gas Emissions from Potato Farmland
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Pinggui Miao, Xianfeng Yu, Xucheng Zhang, Yanjie Fang, Huizhi Hou, Hongli Wang, Yifan Ma, Xuecheng Dou
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表1 不同耕作措施下土壤温度(0~25cm)与农田温室气体排放通量的回归方程
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Table 1 Regression equations of soil temperature (0-25cm) and greenhouse gas emission fluxes under different tillage measures
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气体排放通量 Gas emission flux | 处理 Treatment | 回归方程 Regression equation | 决定系数 Coefficient of determination (R2) | 相关系数 Correlation coefficient (r) | N2O排放通量 | TT-P | y=0.7157x-8.7865 | 0.4711 | 0.686* | N2O emission flux | VRT-P | y=1.3013x-19.7370 | 0.4317 | 0.657* | | VRT-FL | y=0.8064x-12.6620 | 0.5836 | 0.764** | | TT-FL | y=0.5486x-8.6616 | 0.4727 | 0.687* | CO2排放通量 | TT-P | y=50.5450x-531.4200 | 0.4427 | 0.649* | CO2 emission flux | VRT-P | y=70.9560x-866.2500 | 0.4871 | 0.715* | | VRT-FL | y=31.9210x-210.8100 | 0.6073 | 0.821** | | TT-FL | y=34.1400x-264.6100 | 0.4554 | 0.674* |
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