Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Sustaining crop productivity while reducing environmental nitrogen losses in the subtropical wheat-maize cropping systems: A comprehensive case study of nitrogen cycling and balance
	Zhou, Minghua1 ; Zhu, Bo2 ; Brueggemann, Nicolas 3; Dannenmann, Michael 1; Wang, Yanqiang2 ; Butterbach-Bahl, Klaus 1,4
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	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
内容类型	期刊论文
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.