IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Nitrous oxide emissions from Chinese maize-wheat rotation systems: A 3-year field measurement
Cai, Yanjiang1,3; Ding, Weixin1; Luo, Jiafa2
Corresponding AuthorDing, WX
2013-02-01
Source PublicationATMOSPHERIC ENVIRONMENT
ISSN1352-2310
Volume65Pages:112-122
SubtypeArticle
AbstractNitrous oxide (N2O) fluxes were measured over a 3-year period (2004-2007) in a long-term experimental field. The objectives of the study were to evaluate the interannual variation of N2O emissions from a maize-wheat rotation, under different fertilizer regimes and to determine the key controlling factors. The study involved four treatments: compost (OM), half compost N plus half inorganic fertilizer-N (HOM), inorganic fertilizer-N (NPK), and control (CK) where no N application. The mean annual N2O emission over a 3-year period was 030 +/- 0.11 kg N2O-N ha(-1) in the CK treatment, but increased to 1.61 +/- 0.10 kg N2O-N ha(-1) in the HOM treatment, 2.13 +/- 0.15 kg N2O-N ha(-1) in the OM treatment, and 2.76 +/- 0.19 kg N2O-N ha(-1) in the NPK treatment. Differences were significant among treatments. The N2O emission factors of the applied OM, NPK and HUM were 0.61 +/- 0.02, 0.82 +/- 0.10 and 0.44 +/- 0.04%, respectively, at a rate of 300 kg N ha(-1) year(-1), indicating that the combined application of compost with inorganic fertilizer significantly reduced N2O emission. Over a maize-wheat rotation year, more than 65% of the annual N2O emission occurred during the maize growing season. There was a large interannual variation in N2O emission in all treatments, albeit not significant either during the maize growing season or at an inter-year scale. This interannual variation was mainly attributable to differences in soil moisture after basal fertilizer application, and irrigation and/or heavy rainfall events immediately following basal fertilization could induce more N2O production than pre-irrigation before plowing. The HOM treatment had higher N fertilizer use efficiency and lowest yield-scaled N2O emissions compared with the OM and NPK treatments. We therefore argue that the combined application of half compost N plus half fertilizer-N will mitigate N2O emissions from soils in the North China plain. (C) 2012 Elsevier Ltd. All rights reserved.
KeywordEmission Factor Fertilizer Type Interannual Variation Irrigation Long-term Experiment N2o
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.atmosenv.2012.10.038
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordDISSOLVED ORGANIC-CARBON ; INDO-GANGETIC PLAINS ; NITRIFICATION INHIBITORS ; UPLAND FIELD ; N2O FLUXES ; SOILS ; FERTILIZER ; MANURE ; NO ; MITIGATION
Language英语
WOS SubjectEnvironmental Sciences ; Meteorology & Atmospheric Sciences
WOS IDWOS:000313840500012
Funding OrganizationNational Basic Research Program of China(2011CB100503) ; Chinese Academy of Sciences(KZCX2-YW-439) ; Natural Science Foundation of China(40725003 ; 40971134 ; 41171190)
Citation statistics
Cited Times:71[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5458
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China
2.AgResearch, Land & Environm, Hamilton 3240, New Zealand
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Environm Evolvement & Regulat, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Cai, Yanjiang,Ding, Weixin,Luo, Jiafa. Nitrous oxide emissions from Chinese maize-wheat rotation systems: A 3-year field measurement[J]. ATMOSPHERIC ENVIRONMENT,2013,65:112-122.
APA Cai, Yanjiang,Ding, Weixin,&Luo, Jiafa.(2013).Nitrous oxide emissions from Chinese maize-wheat rotation systems: A 3-year field measurement.ATMOSPHERIC ENVIRONMENT,65,112-122.
MLA Cai, Yanjiang,et al."Nitrous oxide emissions from Chinese maize-wheat rotation systems: A 3-year field measurement".ATMOSPHERIC ENVIRONMENT 65(2013):112-122.
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