Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture

This experiment was designed to study three determinant factors in decomposition patterns of soil organic matter (SOM): temperature, water and carbon (C) inputs. The study combined field measurements with soil lab incubations and ends with a modelling framework based on the results obtained. Soil re...

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Autores: Curiel Yuste, Jorge|||0000-0002-3221-6960, Baldocchi, Dennis|||0000-0003-3496-4919, Gershenson, A., Goldstein, A., Misson, L., Wong, S.
Tipo de recurso: artículo
Fecha de publicación:2007
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:81119
Acceso en línea:https://ddd.uab.cat/record/81119
https://dx.doi.org/urn:doi:10.1111/j.1365-2486.2007.01415.x
Access Level:acceso abierto
Palabra clave:Climate change
Soil organic matter
Soil respiration
Cambio climático
Materia orgánica del suelo
Respiración del suelo
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spelling Microbial soil respiration and its dependency on carbon inputs, soil temperature and moistureCuriel Yuste, Jorge|||0000-0002-3221-6960Baldocchi, Dennis|||0000-0003-3496-4919Gershenson, A.Goldstein, A.Misson, L.Wong, S.Climate changeSoil organic matterSoil respirationCambio climáticoMateria orgánica del sueloRespiración del sueloThis experiment was designed to study three determinant factors in decomposition patterns of soil organic matter (SOM): temperature, water and carbon (C) inputs. The study combined field measurements with soil lab incubations and ends with a modelling framework based on the results obtained. Soil respiration was periodically measured at an oak savanna woodland and a ponderosa pine plantation. Intact soils cores were collected at both ecosystems, including soils with most labile C burnt off, soils with some labile C gone and soils with fresh inputs of labile C. Two treatments, dry-field condition and field capacity, were applied to an incubation that lasted 111 days. Short-term temperature changes were applied to the soils periodically to quantify temperature responses. This was done to prevent confounding results associated with different pools of C that would result by exposing treatments chronically to different temperature regimes. This paper discusses the role of the above-defined environmental factors on the variability of soil C dynamics. At the seasonal scale, temperature and water were, respectively, the main limiting factors controlling soil CO2 efflux for the ponderosa pine and the oak savanna ecosystems. Spatial and seasonal variations in plant activity (root respiration and exudates production) exerted a strong influence over the seasonal and spatial variation of soil metabolic activity. Mean residence times of bulk SOM were significantly lower at the Nitrogen (N)-rich deciduous savanna than at the N-limited evergreen dominated pine ecosystem. At shorter time scales (daily), SOM decomposition was controlled primarily by temperature during wet periods and by the combined effect of water and temperature during dry periods. Secondary control was provided by the presence/absence of plant derived C inputs (exudation). Further analyses of SOM decomposition suggest that factors such as changes in the decomposer community, stress-induced changes in the metabolic activity of decomposers or SOM stabilization patterns remain unresolved, but should also be considered in future SOM decomposition studies. Observations and confounding factors associated with SOM decomposition patterns and its temperature sensitivity are summarized in the modeling framework. 22007-01-0120072007-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/81119https://dx.doi.org/urn:doi:10.1111/j.1365-2486.2007.01415.xreponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:811192026-06-06T12:50:31Z
dc.title.none.fl_str_mv Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
title Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
spellingShingle Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
Curiel Yuste, Jorge|||0000-0002-3221-6960
Climate change
Soil organic matter
Soil respiration
Cambio climático
Materia orgánica del suelo
Respiración del suelo
title_short Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
title_full Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
title_fullStr Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
title_full_unstemmed Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
title_sort Microbial soil respiration and its dependency on carbon inputs, soil temperature and moisture
dc.creator.none.fl_str_mv Curiel Yuste, Jorge|||0000-0002-3221-6960
Baldocchi, Dennis|||0000-0003-3496-4919
Gershenson, A.
Goldstein, A.
Misson, L.
Wong, S.
author Curiel Yuste, Jorge|||0000-0002-3221-6960
author_facet Curiel Yuste, Jorge|||0000-0002-3221-6960
Baldocchi, Dennis|||0000-0003-3496-4919
Gershenson, A.
Goldstein, A.
Misson, L.
Wong, S.
author_role author
author2 Baldocchi, Dennis|||0000-0003-3496-4919
Gershenson, A.
Goldstein, A.
Misson, L.
Wong, S.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Climate change
Soil organic matter
Soil respiration
Cambio climático
Materia orgánica del suelo
Respiración del suelo
topic Climate change
Soil organic matter
Soil respiration
Cambio climático
Materia orgánica del suelo
Respiración del suelo
description This experiment was designed to study three determinant factors in decomposition patterns of soil organic matter (SOM): temperature, water and carbon (C) inputs. The study combined field measurements with soil lab incubations and ends with a modelling framework based on the results obtained. Soil respiration was periodically measured at an oak savanna woodland and a ponderosa pine plantation. Intact soils cores were collected at both ecosystems, including soils with most labile C burnt off, soils with some labile C gone and soils with fresh inputs of labile C. Two treatments, dry-field condition and field capacity, were applied to an incubation that lasted 111 days. Short-term temperature changes were applied to the soils periodically to quantify temperature responses. This was done to prevent confounding results associated with different pools of C that would result by exposing treatments chronically to different temperature regimes. This paper discusses the role of the above-defined environmental factors on the variability of soil C dynamics. At the seasonal scale, temperature and water were, respectively, the main limiting factors controlling soil CO2 efflux for the ponderosa pine and the oak savanna ecosystems. Spatial and seasonal variations in plant activity (root respiration and exudates production) exerted a strong influence over the seasonal and spatial variation of soil metabolic activity. Mean residence times of bulk SOM were significantly lower at the Nitrogen (N)-rich deciduous savanna than at the N-limited evergreen dominated pine ecosystem. At shorter time scales (daily), SOM decomposition was controlled primarily by temperature during wet periods and by the combined effect of water and temperature during dry periods. Secondary control was provided by the presence/absence of plant derived C inputs (exudation). Further analyses of SOM decomposition suggest that factors such as changes in the decomposer community, stress-induced changes in the metabolic activity of decomposers or SOM stabilization patterns remain unresolved, but should also be considered in future SOM decomposition studies. Observations and confounding factors associated with SOM decomposition patterns and its temperature sensitivity are summarized in the modeling framework.
publishDate 2007
dc.date.none.fl_str_mv 2
2007-01-01
2007
2007-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/81119
https://dx.doi.org/urn:doi:10.1111/j.1365-2486.2007.01415.x
url https://ddd.uab.cat/record/81119
https://dx.doi.org/urn:doi:10.1111/j.1365-2486.2007.01415.x
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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