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dc.contributor.authorMoya, M. Rosarioes_ES
dc.contributor.authorSánchez-Cañete, Enrique P.es_ES
dc.contributor.authorVargas, R.es_ES
dc.contributor.authorLópez-Ballesteros, Anaes_ES
dc.contributor.authorOyonarte, Cecilioes_ES
dc.contributor.authorKowalski, Andrew S.es_ES
dc.contributor.authorSerrano-Ortiz, Penélopees_ES
dc.contributor.authorDomingo, Franciscoes_ES
dc.date.accessioned2020-02-18T10:12:43Z-
dc.date.available2020-02-18T10:12:43Z-
dc.date.issued2019-
dc.identifierdoi: 10.1029/2018JG004961-
dc.identifierissn: 2169-8961-
dc.identifier.citationJournal of Geophysical Research: Biogeosciences 124: 902- 917 (2019)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/201055-
dc.description.abstractDue to their large carbon storage capacity and ability to exchange subterranean CO with the atmosphere, soils are key components in the carbon balance in semi-arid ecosystems. Most studies have focused on shallow (e.g., <30 cm depth) soil CO dynamics neglecting processes in deeper soil layers where highly CO -enriched air can be stored or transported through soil pores and fissures. Here, we examine the relationship among variations in subterranean CO molar fraction, volumetric water content, soil temperature and atmospheric pressure during three years within soil profiles (0.15, 0.50, and 1.50 m depths) in two semi-arid grasslands located in southeastern Spain. We applied a wavelet coherence analysis to study the temporal variability and temporal correlation between the CO molar fraction and its covariates (soil temperature, soil moisture and atmospheric pressure). Our results show that CO dynamics are strongly influenced by changes in atmospheric pressure from semidiurnal, diurnal and synoptic to monthly time-scales for all soil depths. In contrast, only weak daily dependencies were found at the surface level (0.15 m) regarding soil temperature and volumetric water content. Atmospheric pressure changes substantially influence variations in the CO content (with daily fluctuations of up to 2000 ppm) denoting transportation through soil layers. These results provide insights into the importance of subterranean storage and non-diffusive gas transport that could influence soil CO efflux rates, processes that are not considered when applying the flux-gradient approach and, which can be especially important in ecosystems with high air permeability between the unsaturated porous media and the atmosphere.-
dc.description.sponsorship7th European Community Framework Programme DIESEL project. Grant Number: Nº 625988 Consejería de Innovación Ciencia y Empresa CARBOLIVAR. Grant Number: CGL2014‐52838‐C2‐1‐R National Science Foundation (NSF). Grant Number: #1652594 Spanish Ministry of Economy and Competitiveness Dincos. Grant Number: CGL2016‐78075‐P Spanish Ministry of Economy and Competitiveness projects GeiSpain. Grant Number: CGL2014‐52838‐C2‐2‐R Unidades de Excelencia Científica del Plan Propio de Investigación de la Universidad de Granada-
dc.languageeng-
dc.publisherAmerican Geophysical Uniones_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014‐52838‐C2‐1‐R-
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014‐52838‐C2‐2‐R-
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/625988-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.titleCO 2 Dynamics Are Strongly Influenced by Low Frequency Atmospheric Pressure Changes in Semiarid Grasslandses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1029/2018JG004961-
dc.relation.publisherversionhttp://dx.doi.org/10.1029/2018JG004961-
dc.date.updated2020-02-18T10:12:43Z-
dc.contributor.funderEuropean Commission-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderUniversidad de Granada-
dc.relation.csices_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100006393es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.fulltextWith Fulltext-
item.openairetypeartículo-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
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