Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem

Research on the subterranean CO dynamics has focused individually on either surface soils or bedrock cavities, neglecting the interaction of both systems as a whole. In this regard, the vadose zone contains CO-enriched air (ca. 5% by volume) in the first meters, and its exchange with the atmosphere...

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Autores: Sánchez-Cañete, Enrique P., Oyonarte, Cecilio, Serrano-Ortiz, Penélope, Curiel Yuste, Jorge, Pérez-Priego, Óscar, Domingo, Francisco, Kowalski, Andrew S.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/155704
Acceso en línea:http://hdl.handle.net/10261/155704
Access Level:acceso abierto
Palabra clave:Wind increases CO2
Wind induces CO2
Windy days increased NECB emissions and reduced soil CO2 concentrations
Depletion in bare soil
Under plant soil and induces CO2
Transport in surface soil and bedrock but not in subsurface
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spelling Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystemSánchez-Cañete, Enrique P.Oyonarte, CecilioSerrano-Ortiz, PenélopeCuriel Yuste, JorgePérez-Priego, ÓscarDomingo, FranciscoKowalski, Andrew S.Wind increases CO2Wind induces CO2Windy days increased NECB emissions and reduced soil CO2 concentrationsDepletion in bare soilUnder plant soil and induces CO2Transport in surface soil and bedrock but not in subsurfaceResearch on the subterranean CO dynamics has focused individually on either surface soils or bedrock cavities, neglecting the interaction of both systems as a whole. In this regard, the vadose zone contains CO-enriched air (ca. 5% by volume) in the first meters, and its exchange with the atmosphere can represent from 10 to 90% of total ecosystem CO emissions. Despite its importance, to date still lacking are reliable and robust databases of vadose zone CO contents that would improve knowledge of seasonal-annual aboveground-belowground CO balances. Here we study 2.5 years of vadose zone CO dynamics in a semiarid ecosystem. The experimental design includes an integrative approach to continuously measure CO in vertical and horizontal soil profiles, following gradients from surface to deep horizons and from areas of net biological CO production (under plants) to areas of lowest CO production (bare soil), as well as a bedrock borehole representing karst cavities and ecosystem-scale exchanges. We found that CO followed similar seasonal patterns for the different layers, with the maximum seasonal values of CO delayed with depth (deeper more delayed). However, the behavior of CO transport differed markedly among layers. Advective transport driven by wind induced CO emission both in surface soil and bedrock, but with negligible effect on subsurface soil, which appears to act as a buffer impeding rapid CO exchanges. Our study provides the first evidence of enrichment of CO under plant, hypothesizing that CO-rich air could come from root zone or by transport from deepest layers through cracks and fissures.These data were funded by the Andalusian regional government project GEOCARBO (P08-RNM-3721), including European Union ERDF funds, with support from Spanish Ministry of Science and Innovation projects SOILPROF (CGL2011-15276-E), CARBORAD (CGL2011-27493), and GEISpain (CGL2014-52838-C2-1-R). This research was supported by a Marie Curie International Outgoing Fellowship within the 7th European Community Framework Programme, DIESEL project (625988). Peer ReviewedAmerican Geophysical UnionMinisterio de Ciencia e Innovación (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720162017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/155704reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1557042026-05-22T06:33:51Z
dc.title.none.fl_str_mv Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
title Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
spellingShingle Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
Sánchez-Cañete, Enrique P.
Wind increases CO2
Wind induces CO2
Windy days increased NECB emissions and reduced soil CO2 concentrations
Depletion in bare soil
Under plant soil and induces CO2
Transport in surface soil and bedrock but not in subsurface
title_short Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
title_full Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
title_fullStr Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
title_full_unstemmed Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
title_sort Winds induce CO2 exchange with the atmosphere and vadose zone transport in a karstic ecosystem
dc.creator.none.fl_str_mv Sánchez-Cañete, Enrique P.
Oyonarte, Cecilio
Serrano-Ortiz, Penélope
Curiel Yuste, Jorge
Pérez-Priego, Óscar
Domingo, Francisco
Kowalski, Andrew S.
author Sánchez-Cañete, Enrique P.
author_facet Sánchez-Cañete, Enrique P.
Oyonarte, Cecilio
Serrano-Ortiz, Penélope
Curiel Yuste, Jorge
Pérez-Priego, Óscar
Domingo, Francisco
Kowalski, Andrew S.
author_role author
author2 Oyonarte, Cecilio
Serrano-Ortiz, Penélope
Curiel Yuste, Jorge
Pérez-Priego, Óscar
Domingo, Francisco
Kowalski, Andrew S.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Wind increases CO2
Wind induces CO2
Windy days increased NECB emissions and reduced soil CO2 concentrations
Depletion in bare soil
Under plant soil and induces CO2
Transport in surface soil and bedrock but not in subsurface
topic Wind increases CO2
Wind induces CO2
Windy days increased NECB emissions and reduced soil CO2 concentrations
Depletion in bare soil
Under plant soil and induces CO2
Transport in surface soil and bedrock but not in subsurface
description Research on the subterranean CO dynamics has focused individually on either surface soils or bedrock cavities, neglecting the interaction of both systems as a whole. In this regard, the vadose zone contains CO-enriched air (ca. 5% by volume) in the first meters, and its exchange with the atmosphere can represent from 10 to 90% of total ecosystem CO emissions. Despite its importance, to date still lacking are reliable and robust databases of vadose zone CO contents that would improve knowledge of seasonal-annual aboveground-belowground CO balances. Here we study 2.5 years of vadose zone CO dynamics in a semiarid ecosystem. The experimental design includes an integrative approach to continuously measure CO in vertical and horizontal soil profiles, following gradients from surface to deep horizons and from areas of net biological CO production (under plants) to areas of lowest CO production (bare soil), as well as a bedrock borehole representing karst cavities and ecosystem-scale exchanges. We found that CO followed similar seasonal patterns for the different layers, with the maximum seasonal values of CO delayed with depth (deeper more delayed). However, the behavior of CO transport differed markedly among layers. Advective transport driven by wind induced CO emission both in surface soil and bedrock, but with negligible effect on subsurface soil, which appears to act as a buffer impeding rapid CO exchanges. Our study provides the first evidence of enrichment of CO under plant, hypothesizing that CO-rich air could come from root zone or by transport from deepest layers through cracks and fissures.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/155704
url http://hdl.handle.net/10261/155704
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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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