Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance
文献类型：期刊论文
| 作者 | Zhou, Minghua1 ; Zhu, Bo2; Brueggemann, Nicolas3; Dannenmann, Michael1; Wang, Yanqiang2; Butterbach-Bahl, Klaus1,4
|
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 231页码:1-14 |
| 关键词 | Nitrogen mass balance N-15 Manure incorporation Coupling of C and N cycles Wheat Maize |
| ISSN号 | 0167-8809 |
| 通讯作者 | Zhu, Bo ; Butterbach-Bahl, Klaus |
| 英文摘要 | Balancing the nitrogen (N) budgets of agricultural systems is essential for sustaining yields at lower environmental costs. However, it is still rare to find reports on the total N budgets of agricultural systems including all N fluxes in the literature. Here, we conducted a comprehensive study on the effects of different N fertilizers (control, synthetic fertilizer, 60% synthetic fertilizer N plus 40% pig manure N, pig manure N applied at the same rate of 280 kg N ha(-1) yr(-1)) on N pools, cycling processes, fluxes and total N balances in a subtropical wheat-maize rotation system in China by monitoring in situ N fluxes combined with field N-15-tracer and N-15 isotope-dilution techniques. The warm and wet maize season was associated with significantly larger N losses via gaseous and hydrological pathways than the cooler and drier wheat season. Nitrate leaching and NH3 volatilization were the main N loss pathways, accounting for 78% and 93% of the annual hydrological and gaseous N losses, respectively. The field N-15 tracing experiment showed that the wheat system had a high N retention capacity (similar to 50% of N-15 application), although the N residence time was short. In the subsequent maize season, 90% of the residual N-15-labeled fertilizer in the soil that had been applied to the wheat system was utilized by plants or lost to the environment. The combined application of synthetic and organic fertilizers (pig manure) or application of pig manure resulted in significantly higher soil N retention and lower NO3- leaching, while yields remained unaffected. However, the application of manure resulted in larger NH3 volatilization losses compared with the application of synthetic fertilizer alone. Thus, our study suggests that a combination of synthetic and organic N fertilizers is suitable for sustaining agricultural productivity while reducing environmental N losses by fostering interactions between the soil C and N cycles. (C) 2016 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] | OXIDE EMISSIONS ; SICHUAN BASIN ; AMMONIA VOLATILIZATION ; AGRICULTURAL SYSTEMS ; MINERAL-NITROGEN ; RIVER-BASIN ; PURPLE SOIL ; CHINA ; FERTILIZER ; ROTATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000382592700001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17670]  |
| 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.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Environm Res IMK IFU, D-82467 Garmisch Partenkirchen, Germany 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 3.Forschungszentrum Julich, Inst Bio & Geosci, Agrosphere IBG 3, D-52425 Julich, Germany 4.Int Livestock Res Inst, Old Naivasha Rd, Nairobi 00100, Kenya |
| 推荐引用方式 GB/T 7714 | Zhou, Minghua,Zhu, Bo,Brueggemann, Nicolas,et al. Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2016,231:1-14. |
| APA | Zhou, Minghua,Zhu, Bo,Brueggemann, Nicolas,Dannenmann, Michael,Wang, Yanqiang,&Butterbach-Bahl, Klaus.(2016).Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,231,1-14. |
| MLA | Zhou, Minghua,et al."Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 231(2016):1-14. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。