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采用静态暗箱-气相色谱法,研究施用生物炭与添加硝化抑制剂对菜地周年综合温室效应的影响.结果表明:与不施用生物炭相比,施用生物炭处理N2O和CH4的综合温室效应增加8.7%~12.4%,蔬菜产量增加16.1%~52.5%,温室气体强度降低5.4%~28.7%.添加硝化抑制剂显著减少N2O排放,不影响CH4排放,综合温室效应减少17.5%~20.6%,蔬菜产量增加21.2%~40.1%,温室气体强度显著降低.混合施用生物炭与硝化抑制剂一方面增加蔬菜产量,另一方面显著增加综合温室效应(增幅为10.6%~11.2%).因此,在菜地添加硝化抑制剂,既能保证蔬菜产量又能减少温室气体排放,是合适的减排措施.
The effects of applying biochar and adding nitrification inhibitor on the comprehensive greenhouse effect of vegetable field were studied by static dark box-gas chromatography.The results showed that the comprehensive greenhouse effect of applying biochar to N2O and CH4 increased compared with that of biochar 8.7% ~ 12.4%, vegetable yield increased by 16.1% -52.5%, and greenhouse gas intensity decreased by 5.4% -28.7%. Adding nitrification inhibitor significantly reduced N2O emissions without affecting CH4 emissions, and the comprehensive greenhouse effect decreased by 17.5% -20.6% The yield increased by 21.2% ~ 40.1%, and the intensity of greenhouse gas decreased significantly.Combination of biochar and nitrification inhibitor increased the yield of vegetables on the one hand and the comprehensive greenhouse effect on the other (10.6% ~ 11.2% increase) To add nitrification inhibitors, both to ensure vegetable production but also reduce greenhouse gas emissions, is the appropriate emission reduction measures.