Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data

Many recent reviews and meta-analyses of NO emissions do not include data from Mediterranean studies. In this paper we present a meta-analysis of the NO emissions from Mediterranean cropping systems, and propose a more robust and reliable regional emission factor (EF) for NO, distinguishing the effe...

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Autores: Cayuela, María Luz, Aguilera, Eduardo, Sanz-Cobeña, Alberto, Adams, Dean C., Abalos, Diego, Barton, Louise, Ryals, Rebecca, Silver, Whendee L., Alfaro, Marta A., Pappa, Valentini A., Smith, Pete, Garnier, Josette, Billen, Gilles, Bouwman, Lex, Bondeau, Alberte, Lassaletta, Luis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/345831
Acceso en línea:http://hdl.handle.net/10261/345831
Access Level:acceso abierto
Palabra clave:N2O
Greenhouse gases
Field studies
Mitigation
Systematic review
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spelling Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement dataCayuela, María LuzAguilera, EduardoSanz-Cobeña, AlbertoAdams, Dean C.Abalos, DiegoBarton, LouiseRyals, RebeccaSilver, Whendee L.Alfaro, Marta A.Pappa, Valentini A.Smith, PeteGarnier, JosetteBillen, GillesBouwman, LexBondeau, AlberteLassaletta, LuisN2OGreenhouse gasesField studiesMitigationSystematic reviewMany recent reviews and meta-analyses of NO emissions do not include data from Mediterranean studies. In this paper we present a meta-analysis of the NO emissions from Mediterranean cropping systems, and propose a more robust and reliable regional emission factor (EF) for NO, distinguishing the effects of water management, crop type, and fertilizer management. The average overall EF for Mediterranean agriculture (EF) was 0.5%, which is substantially lower than the IPCC default value of 1%. Soil properties had no significant effect on EFs for NO. Increasing the N fertilizer rate led to higher EFs; when N was applied at rates greater than 400 kg N ha, the EF did not significantly differ from the 1% default value (EF: 0.82%). Liquid slurries led to emissions that did not significantly differ from 1%; the other fertilizer types were lower but did not significantly differ from each other. Rain-fed crops in Mediterranean regions have lower EFs (EF: 0.27%) than irrigated crops (EF: 0.63%). Drip irrigation systems (EF: 0.51%) had 44% lower EF than sprinkler irrigation methods (EF: 0.91%). Extensive crops, such as winter cereals (wheat, oat and barley), had lower EFs (EF: 0.26%) than intensive crops such as maize (EF: 0.83%). For flooded rice, anaerobic conditions likely led to complete denitrification and low EFs (EF: 0.19%). Our results indicate that NO emissions from Mediterranean agriculture are overestimated in current national greenhouse gas inventories and that, with the new EF determined from this study, the effect of mitigation strategies such as drip irrigation or the use of nitrification inhibitors, even if highly significant, may be smaller in absolute terms.The authors are grateful to M. Scholes, D. Plaza-Bonilla, S. Menendez, P. Merino, S.C. Maris, H. Heller, D. Savvas, C. K. Kontopoulou, who were contacted and kindly supplied any missing information necessary for the meta-analysis. Special thanks to J.P.C. Eekhout for preparing Fig. 1 and F. Estellés for providing the basic data for the calculation of the fertilization in Spain. Also thanks to two anonymous reviewers for their helpful comments. M. L. Cayuela was supported by a ‘Ramon y Cajal’ research contract from the Spanish Ministry of Economy and Competitiveness. Thanks to Fundación Séneca, Agencia Regional de Ciencia y Tecnología de la Región de Murcia for support (grant number 19281/PI/14). Australian studies included in the meta-analysis were funded by the Australian Government, the Grains Research and Development Corporation, and the Department of Agriculture and Food WAPeer reviewedElsevier BVMinisterio de Economía y Competitividad (España)Fundación SénecaAustralian GovernmentGrains Research and Development Corporation (Australia)Department of Primary Industries and Regional Development (Western Australia)Cayuela, María Luz [0000-0003-0929-4204]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420172024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/345831reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésInglésThe underlying dataset has been published as supplementary material of the article in the publisher platform at DOI: 10.1016/j.agee.2016.10.006http://dx.doi.org/10.1016/j.agee.2016.10.006Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3458312026-05-22T06:33:51Z
dc.title.none.fl_str_mv Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
title Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
spellingShingle Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
Cayuela, María Luz
N2O
Greenhouse gases
Field studies
Mitigation
Systematic review
title_short Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
title_full Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
title_fullStr Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
title_full_unstemmed Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
title_sort Direct nitrous oxide emissions in Mediterranean climate cropping systems: Emission factors based on a meta-analysis of available measurement data
dc.creator.none.fl_str_mv Cayuela, María Luz
Aguilera, Eduardo
Sanz-Cobeña, Alberto
Adams, Dean C.
Abalos, Diego
Barton, Louise
Ryals, Rebecca
Silver, Whendee L.
Alfaro, Marta A.
Pappa, Valentini A.
Smith, Pete
Garnier, Josette
Billen, Gilles
Bouwman, Lex
Bondeau, Alberte
Lassaletta, Luis
author Cayuela, María Luz
author_facet Cayuela, María Luz
Aguilera, Eduardo
Sanz-Cobeña, Alberto
Adams, Dean C.
Abalos, Diego
Barton, Louise
Ryals, Rebecca
Silver, Whendee L.
Alfaro, Marta A.
Pappa, Valentini A.
Smith, Pete
Garnier, Josette
Billen, Gilles
Bouwman, Lex
Bondeau, Alberte
Lassaletta, Luis
author_role author
author2 Aguilera, Eduardo
Sanz-Cobeña, Alberto
Adams, Dean C.
Abalos, Diego
Barton, Louise
Ryals, Rebecca
Silver, Whendee L.
Alfaro, Marta A.
Pappa, Valentini A.
Smith, Pete
Garnier, Josette
Billen, Gilles
Bouwman, Lex
Bondeau, Alberte
Lassaletta, Luis
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Fundación Séneca
Australian Government
Grains Research and Development Corporation (Australia)
Department of Primary Industries and Regional Development (Western Australia)
Cayuela, María Luz [0000-0003-0929-4204]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv N2O
Greenhouse gases
Field studies
Mitigation
Systematic review
topic N2O
Greenhouse gases
Field studies
Mitigation
Systematic review
description Many recent reviews and meta-analyses of NO emissions do not include data from Mediterranean studies. In this paper we present a meta-analysis of the NO emissions from Mediterranean cropping systems, and propose a more robust and reliable regional emission factor (EF) for NO, distinguishing the effects of water management, crop type, and fertilizer management. The average overall EF for Mediterranean agriculture (EF) was 0.5%, which is substantially lower than the IPCC default value of 1%. Soil properties had no significant effect on EFs for NO. Increasing the N fertilizer rate led to higher EFs; when N was applied at rates greater than 400 kg N ha, the EF did not significantly differ from the 1% default value (EF: 0.82%). Liquid slurries led to emissions that did not significantly differ from 1%; the other fertilizer types were lower but did not significantly differ from each other. Rain-fed crops in Mediterranean regions have lower EFs (EF: 0.27%) than irrigated crops (EF: 0.63%). Drip irrigation systems (EF: 0.51%) had 44% lower EF than sprinkler irrigation methods (EF: 0.91%). Extensive crops, such as winter cereals (wheat, oat and barley), had lower EFs (EF: 0.26%) than intensive crops such as maize (EF: 0.83%). For flooded rice, anaerobic conditions likely led to complete denitrification and low EFs (EF: 0.19%). Our results indicate that NO emissions from Mediterranean agriculture are overestimated in current national greenhouse gas inventories and that, with the new EF determined from this study, the effect of mitigation strategies such as drip irrigation or the use of nitrification inhibitors, even if highly significant, may be smaller in absolute terms.
publishDate 2017
dc.date.none.fl_str_mv 2017
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/345831
url http://hdl.handle.net/10261/345831
dc.language.none.fl_str_mv Inglés
Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI: 10.1016/j.agee.2016.10.006
http://dx.doi.org/10.1016/j.agee.2016.10.006
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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