| 陶甄,李中阳,李松旌,李宝贵,李嗣艺,高峰,刘源.硝化抑制剂、脲酶抑制剂与生物炭复配对土壤温室气体排放的影响[J].农业环境科学学报,2022,41(6):1368-1379. |
| 硝化抑制剂、脲酶抑制剂与生物炭复配对土壤温室气体排放的影响 |
| Impact of compound addition of biochar, nitrification inhibitor, and urease inhibitor on greenhouse gas emissions |
| 投稿时间：2021-11-11 修订日期：2022-01-29 |
| DOI：10.11654/jaes.2021-1303 |
| 中文关键词: 生物炭 硝化抑制剂 脲酶抑制剂 温室气体 |
| 英文关键词: biochar nitrification inhibitor urease inhibitor greenhouse gas |
| 基金项目:十三五国家重点研发计划项目(2021YFD1700900,2017YFD0801103-2);国家自然科学基金项目(41701265);河南省科技攻关计划项目(202102110215);中国农业科学院创新工程资助项目 |
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| 中文摘要: |
| 为揭示外源物质生物炭、硝化抑制剂、脲酶抑制剂复配对温室气体排放的影响，采用室内培养试验，比较外源物质不同组合[对照（CK）、生物炭（BC）、硝化抑制剂（NP）、脲酶抑制剂（NB）、生物炭+硝化抑制剂（BCNP）、生物炭+脲酶抑制剂（BCNB）、硝化抑制剂+脲酶抑制剂（NPB）、生物炭+硝化抑制剂+脲酶抑制剂（BCNPB）]对温室气体排放的影响，同时监测土壤pH、NH+4-N、NO-3-N等影响因子的变化规律。结果表明：与CK相比，各处理均抑制了土壤N2O排放，其中NPB处理抑制效果最显著；所有处理均促进了土壤CO2排放；除BC处理为负效应外，土壤CH4排放效应与CO2结果类似；除BCNB处理外，其他处理对全球增温潜势有一定的抑制作用，其中NPB处理的抑制效果最佳。培养结束时，与CK相比，除NP处理提高了土壤pH外，其他6个处理均降低了土壤pH；在无机氮含量方面，与CK相比，各处理均增加了土壤NH+4-N含量，BCNPB、NP、NPB处理减少了NO-3-N含量，NB、BC、BCNP、BCNB处理增加了NO-3-N含量。综合考虑全球增温趋势和土壤性质，本试验条件下硝化抑制剂＋脲酶抑制剂处理为抑制温室气体排放的最优外源物质处理。 |
| 英文摘要: |
| To investigate the effects of the addition of exogenous biochar, nitrification inhibitors, and urease inhibitors on greenhouse gas emissions, an indoor incubation method was employed and combinations of exogenous substances were as follows:control(CK), biochar (BC), nitrification inhibitor(NP), urease inhibitor(NB), BC+NP(BCNP), BC+NB(BCNB), NP+NB(NPB), and BC+NP+NB(BCNPB). The greenhouse gas emissions from the soil, as well as the soil pH changes, NH + 4-N, and NO-3-N in these treatments were monitored. The results demonstrated that compared with CK, each treatment basically suppressed soil N2O emission with NPB being the most efficient treatment; all treatments promoted soil CO2 emission except the BC treatment; the effects on soil CH4 emission were generally similar to the CO2 results. All treatments, but BC, BCNB, and BCNPB had an inhibitory effect on the global warming potential to some degree, and the NPB treatment worked best. At the end of the incubation, compared with CK, except for the NP treatment, which increased the soil pH, all the other treatments decreased the pH; in terms of inorganic nitrogen content in the soil, compared with the CK, all treatments increased the NH + 4 -N content, whereas the NB, BC, BCNP, and BCNB treatments increased the NO-3-N content, whereas the BCNPB, NP, and NPB treatments reduced the NO-3-N content. Considering the effects of both global warming potential and soil properties, the treatment of the nitrification + urease inhibitors in the study is the optimal choice to suppress greenhouse gas emissions. |
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