Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics

36 Pags., 5 Tabls., 5 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/01671987

Detalles Bibliográficos
Autores: Álvaro-Fuentes, Jorge, Morell Soler, Francisco Joaquín, Plaza-Bonilla, Daniel, Arrúe Ugarte, José Luis, Cantero-Martínez, Carlos
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/46150
Acceso en línea:http://hdl.handle.net/10261/46150
Access Level:acceso abierto
Palabra clave:Soil organic carbon modelling
Tillage
Nitrogen fertilization
Semiarid agroecosystems
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spelling Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamicsÁlvaro-Fuentes, JorgeMorell Soler, Francisco JoaquínPlaza-Bonilla, DanielArrúe Ugarte, José LuisCantero-Martínez, CarlosSoil organic carbon modellingTillageNitrogen fertilizationSemiarid agroecosystems36 Pags., 5 Tabls., 5 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/01671987Agricultural management plays an important role in global warming mitigation due to its effects on soil organic carbon (SOC) dynamics. In Mediterranean agroecosystems, the interactive effects of tillage and N fertilization on SOC storage have scarcely been studied. Hence, we here present a modelling study in which the effects of both tillage and N fertilization on SOC dynamics are investigated. We used SOC and C input data from a long-term (13 years) field study located in northeast Spain, firstly to validate both the Century model and the Rothamsted Carbon (RothC) model and secondly to predict future SOC dynamics until the year 2030. Tillage and N fertilization affected SOC stocks in the 0–30 cm soil layer. However, the interaction of the two factors was not significant. Averaged over the three N fertilization rates, the observed mean SOC stocks in conventional tillage (CT) and no-tillage (NT) were 29.8 and 36.8 Mg C ha−1, respectively. In addition, the observed SOC stocks, averaged for both tillage systems, increased with increasing N rates, with 30.6, 33.5 and 35.8 Mg C ha−1 for the 0, 60 and 120 kg N ha−1 rates, respectively. In general, both the Century model and the RothC model performed well in predicting SOC dynamics. Model predictions showed that in Mediterranean dryland agroecosystems SOC dynamics in the next 20 years would be variable according to the tillage and N fertilization applied. According to these predictions, scenarios with NT and high fertilization rates (e.g., 60–120 kg N ha−1) could lead to significant SOC sequestration and associated CO2 emission offsetting. However, these scenarios with high SOC sequestration rates also showed high mineral N accumulation in the soil profile with its associated environmental side effects.This work was supported by the Comisión Interministerial de Ciencia y Tecnología of Spain (Grants AGL2010-22050-C03-01/02) and the European Union (FEDER funds). We acknowledge the Consejo Superior de Investigaciones Cientificas (CSIC) for the contract granted to Jorge Álvaro-Fuentes within the “Junta para la Ampliación de Estudios” (JAE-DOC) programme co-financed by the European Social Fund. Furthermore, Daniel Plaza-Bonilla was awarded a FPU fellowship by the Spanish Ministry of Education.Peer reviewedElsevier201220122012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/46150reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.still.2012.01.009info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/461502026-05-22T06:33:51Z
dc.title.none.fl_str_mv Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
title Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
spellingShingle Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
Álvaro-Fuentes, Jorge
Soil organic carbon modelling
Tillage
Nitrogen fertilization
Semiarid agroecosystems
title_short Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
title_full Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
title_fullStr Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
title_full_unstemmed Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
title_sort Modelling tillage and nitrogen fertilization effects on soil organic carbon dynamics
dc.creator.none.fl_str_mv Álvaro-Fuentes, Jorge
Morell Soler, Francisco Joaquín
Plaza-Bonilla, Daniel
Arrúe Ugarte, José Luis
Cantero-Martínez, Carlos
author Álvaro-Fuentes, Jorge
author_facet Álvaro-Fuentes, Jorge
Morell Soler, Francisco Joaquín
Plaza-Bonilla, Daniel
Arrúe Ugarte, José Luis
Cantero-Martínez, Carlos
author_role author
author2 Morell Soler, Francisco Joaquín
Plaza-Bonilla, Daniel
Arrúe Ugarte, José Luis
Cantero-Martínez, Carlos
author2_role author
author
author
author
dc.subject.none.fl_str_mv Soil organic carbon modelling
Tillage
Nitrogen fertilization
Semiarid agroecosystems
topic Soil organic carbon modelling
Tillage
Nitrogen fertilization
Semiarid agroecosystems
description 36 Pags., 5 Tabls., 5 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/01671987
publishDate 2012
dc.date.none.fl_str_mv 2012
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/46150
url http://hdl.handle.net/10261/46150
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.still.2012.01.009
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 15,81155

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