Climate-Dependent Groundwater Discharge on Semi-Arid Inland Ephemeral Wetlands: Lessons from Holocene Sediments of Lagunas Reales in Central Spain

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dc.contributor.authorMediavilla López, Rosa María
dc.contributor.authorSantisteban Navarro, Juan Ignacio
dc.contributor.authorLópez Cilla, Ignacio
dc.contributor.authorGalán de Frutos, Luis
dc.contributor.authorHera Portillo, África de la
dc.date.accessioned2023-06-16T15:26:37Z
dc.date.available2023-06-16T15:26:37Z
dc.date.issued2020
dc.description.abstractWetlands are environments whose water balance is highly sensitive to climate change and human action. This sensitivity has allowed us to explore the relationships between surface water and groundwater in the long term as their sediments record all these changes and go beyond the instrumental/observational period. The Lagunas Reales, in central Spain, is a semi-arid inland wetland endangered by both climate and human activity. The reconstruction of the hydroclimate and water levels from sedimentary facies, as well as the changes in the position of the surface water and groundwater via the record of their geochemical fingerprint in the sediments, has allowed us to establish a conceptual model for the response of the hydrological system (surface water and groundwater) to climate. Arid periods are characterized by low levels of the deeper saline groundwater and by a greater influence of the surface freshwater. A positive water balance during wet periods allows the discharge of the deeper saline groundwater into the wetland, causing an increase in salinity. These results contrast with the classical model where salinity increases were related to greater evaporation rates and this opens up a new way of understanding the evolution of the hydrology of wetlands and their resilience to natural and anthropogenic changes.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipEuropean Union H2020 Programme
dc.description.sponsorshipEuropean Regional Development Fund
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/62791
dc.identifier.doi10.3390/w12071911
dc.identifier.issn2073-4441
dc.identifier.officialurlhttps://www.mdpi.com/2073-4441/12/7/1911
dc.identifier.urihttps://hdl.handle.net/20.500.14352/6685
dc.issue.number1911
dc.journal.titleWater
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectID730497
dc.relation.projectIDIGME13-4E-2576)
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.cdu556.56(460.185)
dc.subject.keywordwetlands
dc.subject.keywordpaleo-groundwater
dc.subject.keywordclimate
dc.subject.keywordsedimentary facies
dc.subject.keywordgeochemistry
dc.subject.keywordHolocene
dc.subject.keywordSpain
dc.subject.ucmHidrología
dc.subject.unesco2508 Hidrología
dc.titleClimate-Dependent Groundwater Discharge on Semi-Arid Inland Ephemeral Wetlands: Lessons from Holocene Sediments of Lagunas Reales in Central Spain
dc.typejournal article
dc.volume.number12
dspace.entity.typePublication
relation.isAuthorOfPublicationc83ed60c-056b-4da6-91a0-01121fce5299
relation.isAuthorOfPublication.latestForDiscoveryc83ed60c-056b-4da6-91a0-01121fce5299
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