Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems

Soil respiration (SR) is a major component of the global carbon cycle and plays a fundamental role in ecosystem feedback to climate change. Empirical modelling is an essential tool for predicting ecosystem responses to environmental change, and also provides important data for calibrating and corrob...

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Autores: Lellei-Kovács, Eszter, Botta-Dukát, Zoltán|||0000-0002-9544-3474, de Dato, Giovanbattista|||0000-0003-0289-1727, Estiarte, Marc|||0000-0003-1176-8480, Guidolotti, Gabriele, Kopittke, Gillian R., Kovács-Láng, Edit, Kröel-Dulay, György|||0000-0002-0695-1232, Larsen, Klaus Steenberg|||0000-0002-1421-6182, Peñuelas, Josep|||0000-0002-7215-0150, Smith, Andrew R., Sowerby, Alwyn, Tietema, Albert, Schmidt, Inger Kappel|||0000-0003-3880-2060
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:163510
Acesso em linha:https://ddd.uab.cat/record/163510
https://dx.doi.org/urn:doi:10.1007/s10021-016-0016-9
Access Level:acceso abierto
Palavra-chave:Annual soil respiration
Empirical soil respiration models
Soil moisture threshold
Shrubland
Temperature dependence
Temperature sensitivity
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spelling Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystemsLellei-Kovács, EszterBotta-Dukát, Zoltán|||0000-0002-9544-3474de Dato, Giovanbattista|||0000-0003-0289-1727Estiarte, Marc|||0000-0003-1176-8480Guidolotti, GabrieleKopittke, Gillian R.Kovács-Láng, EditKröel-Dulay, György|||0000-0002-0695-1232Larsen, Klaus Steenberg|||0000-0002-1421-6182Peñuelas, Josep|||0000-0002-7215-0150Smith, Andrew R.Sowerby, AlwynTietema, AlbertSchmidt, Inger Kappel|||0000-0003-3880-2060Annual soil respirationEmpirical soil respiration modelsSoil moisture thresholdShrublandTemperature dependenceTemperature sensitivitySoil respiration (SR) is a major component of the global carbon cycle and plays a fundamental role in ecosystem feedback to climate change. Empirical modelling is an essential tool for predicting ecosystem responses to environmental change, and also provides important data for calibrating and corroborating process-based models. In this study, we evaluated the performance of three empirical temperature-SR response functions (exponential, Lloyd-Taylor and Gaussian) at seven shrublands located within three climatic regions (Atlantic, Mediterranean and Continental) across Europe. We investigated the performance of SR models by including interaction between soil moisture and soil temperature. We found that the best fit for the temperature functions depended on the site specific climatic conditions. Including soil moisture, we identified thresholds in the three different response functions that improved the model fit in all cases. The direct soil moisture effect on SR, however, was weak at the annual time scale. We conclude that the exponential soil temperature function may only be a good predictor for SR in a narrow temperature range, and that extrapolating predictions for future climate based on this function should be treated with caution as modelled outputs may underestimate SR. The addition of soil moisture thresholds improved the model fit at all sites, but had a far greater ecological significance in the wet Atlantic shrubland where a fundamental change in the soil CO2 efflux would likely have an impact on the whole carbon budget. 22016-01-0120162016-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/163510https://dx.doi.org/urn:doi:10.1007/s10021-016-0016-9reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 227628European Commission https://doi.org/10.13039/501100000780 610028Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 GGL2013/48074-PAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-274open 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:1635102026-06-06T12:50:31Z
dc.title.none.fl_str_mv Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
title Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
spellingShingle Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
Lellei-Kovács, Eszter
Annual soil respiration
Empirical soil respiration models
Soil moisture threshold
Shrubland
Temperature dependence
Temperature sensitivity
title_short Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
title_full Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
title_fullStr Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
title_full_unstemmed Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
title_sort Temperature dependence of soil respiration modulated by thresholds in soil water availability across European shrubland ecosystems
dc.creator.none.fl_str_mv Lellei-Kovács, Eszter
Botta-Dukát, Zoltán|||0000-0002-9544-3474
de Dato, Giovanbattista|||0000-0003-0289-1727
Estiarte, Marc|||0000-0003-1176-8480
Guidolotti, Gabriele
Kopittke, Gillian R.
Kovács-Láng, Edit
Kröel-Dulay, György|||0000-0002-0695-1232
Larsen, Klaus Steenberg|||0000-0002-1421-6182
Peñuelas, Josep|||0000-0002-7215-0150
Smith, Andrew R.
Sowerby, Alwyn
Tietema, Albert
Schmidt, Inger Kappel|||0000-0003-3880-2060
author Lellei-Kovács, Eszter
author_facet Lellei-Kovács, Eszter
Botta-Dukát, Zoltán|||0000-0002-9544-3474
de Dato, Giovanbattista|||0000-0003-0289-1727
Estiarte, Marc|||0000-0003-1176-8480
Guidolotti, Gabriele
Kopittke, Gillian R.
Kovács-Láng, Edit
Kröel-Dulay, György|||0000-0002-0695-1232
Larsen, Klaus Steenberg|||0000-0002-1421-6182
Peñuelas, Josep|||0000-0002-7215-0150
Smith, Andrew R.
Sowerby, Alwyn
Tietema, Albert
Schmidt, Inger Kappel|||0000-0003-3880-2060
author_role author
author2 Botta-Dukát, Zoltán|||0000-0002-9544-3474
de Dato, Giovanbattista|||0000-0003-0289-1727
Estiarte, Marc|||0000-0003-1176-8480
Guidolotti, Gabriele
Kopittke, Gillian R.
Kovács-Láng, Edit
Kröel-Dulay, György|||0000-0002-0695-1232
Larsen, Klaus Steenberg|||0000-0002-1421-6182
Peñuelas, Josep|||0000-0002-7215-0150
Smith, Andrew R.
Sowerby, Alwyn
Tietema, Albert
Schmidt, Inger Kappel|||0000-0003-3880-2060
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Annual soil respiration
Empirical soil respiration models
Soil moisture threshold
Shrubland
Temperature dependence
Temperature sensitivity
topic Annual soil respiration
Empirical soil respiration models
Soil moisture threshold
Shrubland
Temperature dependence
Temperature sensitivity
description Soil respiration (SR) is a major component of the global carbon cycle and plays a fundamental role in ecosystem feedback to climate change. Empirical modelling is an essential tool for predicting ecosystem responses to environmental change, and also provides important data for calibrating and corroborating process-based models. In this study, we evaluated the performance of three empirical temperature-SR response functions (exponential, Lloyd-Taylor and Gaussian) at seven shrublands located within three climatic regions (Atlantic, Mediterranean and Continental) across Europe. We investigated the performance of SR models by including interaction between soil moisture and soil temperature. We found that the best fit for the temperature functions depended on the site specific climatic conditions. Including soil moisture, we identified thresholds in the three different response functions that improved the model fit in all cases. The direct soil moisture effect on SR, however, was weak at the annual time scale. We conclude that the exponential soil temperature function may only be a good predictor for SR in a narrow temperature range, and that extrapolating predictions for future climate based on this function should be treated with caution as modelled outputs may underestimate SR. The addition of soil moisture thresholds improved the model fit at all sites, but had a far greater ecological significance in the wet Atlantic shrubland where a fundamental change in the soil CO2 efflux would likely have an impact on the whole carbon budget.
publishDate 2016
dc.date.none.fl_str_mv 2
2016-01-01
2016
2016-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/163510
https://dx.doi.org/urn:doi:10.1007/s10021-016-0016-9
url https://ddd.uab.cat/record/163510
https://dx.doi.org/urn:doi:10.1007/s10021-016-0016-9
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 227628
European Commission https://doi.org/10.13039/501100000780 610028
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 GGL2013/48074-P
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-274
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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