Soil management effects on greenhouse gases production at the macroaggregate scale

Agricultural management practices play an important role in greenhouse gases (GHG) emissions due to their impact on the soil microenvironment. In this study, two experiments were performed to investigate the influence of tillage and N fertilization on GHG production at the macroaggregate scale. In t...

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Detalhes bibliográficos
Autores: Plaza Bonilla, Daniel, Cantero-Martínez, Carlos, Álvaro-Fuentes, Jorge
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Recursos:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/64828
Acesso em linha:https://doi.org/10.1016/j.soilbio.2013.10.026
http://hdl.handle.net/10459.1/64828
Access Level:acceso abierto
Palavra-chave:Carbon dioxide
Denitrification
Fertilization
Macroaggregate
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spelling Soil management effects on greenhouse gases production at the macroaggregate scalePlaza Bonilla, DanielCantero-Martínez, CarlosÁlvaro-Fuentes, JorgeCarbon dioxideDenitrificationFertilizationMacroaggregateAgricultural management practices play an important role in greenhouse gases (GHG) emissions due to their impact on the soil microenvironment. In this study, two experiments were performed to investigate the influence of tillage and N fertilization on GHG production at the macroaggregate scale. In the first experiment, soil macroaggregates collected from a field experiment comparing various soil management systems (CT, conventional tillage; NT, no-tillage) and N fertilization types (a control treatment without N and mineral N and organic N with pig slurry treatments both at 150kgNha-1) were incubated for 35 days. Methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O) production was quantified at regular time intervals by gas chromatography. In the second experiment, the effects of fertilization type and soil moisture on the relative importance of nitrification and denitrification processes in N2O emission from soil macroaggregates were quantified. Nitrate ammonium, macroaggregate-C concentration, macroaggregate water-stability, microbial biomass-C and N (MBC and MBN, respectively) and water-soluble C (WSC) were determined. While NT macroaggregates showed methanotrophic activity, CT macroaggregates acted as net CH4 producers. However, no significant differences were found between tillage systems on the fluxes and cumulative emissions of CO2 and N2O. Greatest cumulative CO2 emissions, macroaggregate-C concentration and WSC were found in the organic N fertilization treatment and the lowest in the control treatment. Moreover, a tillage and N fertilization interactive effect was found in macroaggregate CO2 production: while the different types of N fertilizers had no effects on the emission of CO2 in the NT macroaggregates, a greater CO2 production in the CT macroaggregates was observed for the organic fertilization treatment compared with the mineral and control treatments. The highest N2O losses due to nitrification were found in the mineral N treatment while denitrification was the main factor affecting N2O losses in the organic N treatment. Our results suggest that agricultural management practices such as tillage and N fertilization regulate GHG production in macroaggregates through changes in the proportion of C and N substrates and in microbial activity.This research was supported by the Comisión Interministerial de Ciencia y Tecnología of Spain (grants AGL 2007-66320-C02-01 and AGL 2010-22050-C03-01/02) and by the Aragon Government and La Caixa (grant GA-LC-050/2011).Elsevier2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://doi.org/10.1016/j.soilbio.2013.10.026http://hdl.handle.net/10459.1/64828reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MEC//AGL2007-66320-C02-01info:eu-repo/grantAgreement/MICINN//AGL2010-22050-C03-01info:eu-repo/grantAgreement/MICINN//AGL2010-22050-C03-02Versió postprint del document publicat a https://doi.org/10.1016/j.soilbio.2013.10.026Soil Biology and Biochemistry, 2014, vol. 68, p. 471- 481cc-by-nc-nd (c) Elsevier, 2014info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:repositori.udl.cat:10459.1/648282026-06-24T12:42:17Z
dc.title.none.fl_str_mv Soil management effects on greenhouse gases production at the macroaggregate scale
title Soil management effects on greenhouse gases production at the macroaggregate scale
spellingShingle Soil management effects on greenhouse gases production at the macroaggregate scale
Plaza Bonilla, Daniel
Carbon dioxide
Denitrification
Fertilization
Macroaggregate
title_short Soil management effects on greenhouse gases production at the macroaggregate scale
title_full Soil management effects on greenhouse gases production at the macroaggregate scale
title_fullStr Soil management effects on greenhouse gases production at the macroaggregate scale
title_full_unstemmed Soil management effects on greenhouse gases production at the macroaggregate scale
title_sort Soil management effects on greenhouse gases production at the macroaggregate scale
dc.creator.none.fl_str_mv Plaza Bonilla, Daniel
Cantero-Martínez, Carlos
Álvaro-Fuentes, Jorge
author Plaza Bonilla, Daniel
author_facet Plaza Bonilla, Daniel
Cantero-Martínez, Carlos
Álvaro-Fuentes, Jorge
author_role author
author2 Cantero-Martínez, Carlos
Álvaro-Fuentes, Jorge
author2_role author
author
dc.subject.none.fl_str_mv Carbon dioxide
Denitrification
Fertilization
Macroaggregate
topic Carbon dioxide
Denitrification
Fertilization
Macroaggregate
description Agricultural management practices play an important role in greenhouse gases (GHG) emissions due to their impact on the soil microenvironment. In this study, two experiments were performed to investigate the influence of tillage and N fertilization on GHG production at the macroaggregate scale. In the first experiment, soil macroaggregates collected from a field experiment comparing various soil management systems (CT, conventional tillage; NT, no-tillage) and N fertilization types (a control treatment without N and mineral N and organic N with pig slurry treatments both at 150kgNha-1) were incubated for 35 days. Methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O) production was quantified at regular time intervals by gas chromatography. In the second experiment, the effects of fertilization type and soil moisture on the relative importance of nitrification and denitrification processes in N2O emission from soil macroaggregates were quantified. Nitrate ammonium, macroaggregate-C concentration, macroaggregate water-stability, microbial biomass-C and N (MBC and MBN, respectively) and water-soluble C (WSC) were determined. While NT macroaggregates showed methanotrophic activity, CT macroaggregates acted as net CH4 producers. However, no significant differences were found between tillage systems on the fluxes and cumulative emissions of CO2 and N2O. Greatest cumulative CO2 emissions, macroaggregate-C concentration and WSC were found in the organic N fertilization treatment and the lowest in the control treatment. Moreover, a tillage and N fertilization interactive effect was found in macroaggregate CO2 production: while the different types of N fertilizers had no effects on the emission of CO2 in the NT macroaggregates, a greater CO2 production in the CT macroaggregates was observed for the organic fertilization treatment compared with the mineral and control treatments. The highest N2O losses due to nitrification were found in the mineral N treatment while denitrification was the main factor affecting N2O losses in the organic N treatment. Our results suggest that agricultural management practices such as tillage and N fertilization regulate GHG production in macroaggregates through changes in the proportion of C and N substrates and in microbial activity.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.soilbio.2013.10.026
http://hdl.handle.net/10459.1/64828
url https://doi.org/10.1016/j.soilbio.2013.10.026
http://hdl.handle.net/10459.1/64828
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MEC//AGL2007-66320-C02-01
info:eu-repo/grantAgreement/MICINN//AGL2010-22050-C03-01
info:eu-repo/grantAgreement/MICINN//AGL2010-22050-C03-02
Versió postprint del document publicat a https://doi.org/10.1016/j.soilbio.2013.10.026
Soil Biology and Biochemistry, 2014, vol. 68, p. 471- 481
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier, 2014
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier, 2014
http://creativecommons.org/licenses/by-nc-nd/4.0/
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:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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