Nitrous oxide and methane emissions from a subtropical rice-rapeseed rotation system in China: A 3-year field case study
文献类型：期刊论文
| 作者 | Zhou, Minghua1,2,3 ; Zhu, Bo1; Brueggemann, Nicolas2; Wang, Xiaoguo1; Zheng, Xunhua4; Butterbach-Bahl, Klaus3,5
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| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
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| 出版日期 | 2015-12-20 |
| 卷号 | 212页码:297-309 |
| ISSN号 | 0167-8809 |
| 关键词 | Nitrous oxide Methane Fertilizer nitrogen Rapeseed Rice Greenhouse gas intensity |
| 通讯作者 | Zhu, Bo |
| 英文摘要 | Fertilizer nitrogen (N) application has been shown to impact both methane (CH4) and nitrous oxide (N2O) emissions from rice-based crop systems, yet the responses of CH4 and N2O fluxes to N fertilizer applications in subtropical rice-rapeseed rotation systems are not well documented. A three-year field experiment was conducted to simultaneously measure the fluxes of CH4 and N2O from a subtropical rice-rapeseed rotation system under three N fertilization treatments (control with no N fertilizer addition [CK], optimized N fertilizer management practice in accordance with the recommended N fertilizer application rate of 150 kg N ha(-1) season(-1) [OP], local farmers common N fertilizer management practice with 250 kg N ha(-1) season(-1) [CP]) in southwestern China. Results showed great intra- and inter-annual variations in CH4 and N2O emissions along with the temporal variations of environmental conditions, emphasizing the necessity of multi-year measurements to achieve representative estimates. Nitrogen fertilization tended to increase N2O emissions and to inhibit CH4 emissions. The direct N2O emission factors (EFd) for the rice systems (mean: 0.99%) were higher than those for the rapeseed systems (mean: 0.71%). In addition, the rice-growing season dominated annual CH4 emissions (>97%), which on average represented 87% of the annual total global warming potential (GWP) of CH4 and N2O emissions across experimental treatments and years. Linking total GWP of CH4 and N2O emissions with grain yields, the average annual yield-scaled GWP for the control (1467 kg CO2-eq Mg-1 grain) was significantly higher than for the OP (700 kg CO2-eq Mg-1 grain) and CP (682 kg CO2-eq Mg-1 grain) treatments (P < 0.05). Given the comparable area- and yield-scaled GWP between the CP and OP treatments, the OP treatment reduced local farmers' common N fertilizer application rate by 40% and tended to maintain crop grain yields, however it also reduced N surplus and off-site N losses in the subtropical rice-rapeseed rotation systems of southwestern China. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences |
| 研究领域[WOS] | Agriculture ; Environmental Sciences & Ecology |
| 关键词[WOS] | GREENHOUSE-GAS INTENSITY ; N2O EMISSIONS ; CH4 EMISSIONS ; CROPPING SYSTEMS ; PADDY FIELDS ; FERTILIZER MANAGEMENT ; WATER MANAGEMENT ; SOUTHWEST CHINA ; N-FERTILIZATION ; FLOODED RICE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000361261100027 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10999]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Forschungszentrum Julich, Inst Bio & Geosci Agrosphere IBG 3, D-52425 Julich, Germany 3.Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Environm Re, D-82467 Garmisch Partenkirchen, Germany 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China 5.Int Livestock Res Inst, Nairobi 00100, Kenya |
| 推荐引用方式 GB/T 7714 | Zhou, Minghua,Zhu, Bo,Brueggemann, Nicolas,et al. Nitrous oxide and methane emissions from a subtropical rice-rapeseed rotation system in China: A 3-year field case study[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2015,212:297-309. |
| APA | Zhou, Minghua,Zhu, Bo,Brueggemann, Nicolas,Wang, Xiaoguo,Zheng, Xunhua,&Butterbach-Bahl, Klaus.(2015).Nitrous oxide and methane emissions from a subtropical rice-rapeseed rotation system in China: A 3-year field case study.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,212,297-309. |
| MLA | Zhou, Minghua,et al."Nitrous oxide and methane emissions from a subtropical rice-rapeseed rotation system in China: A 3-year field case study".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 212(2015):297-309. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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