The Quebrada Negra wetland study: An approach to understand plant diversity, hydrology, and hydrogeology of high-Andean wetlands

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dc.article.numbere1683
dc.catalogadorgrr
dc.contributor.authorSuarez Poch, Francisco
dc.contributor.authorSarabia A.
dc.contributor.authorSanzana P.
dc.contributor.authorLatorre Hidalgo Claudio
dc.contributor.authorMunoz J.F.
dc.contributor.otherCEDEUS (Chile)
dc.date.accessioned2024-01-10T14:23:28Z
dc.date.available2024-01-10T14:23:28Z
dc.date.issued2023
dc.description.abstractHigh-Andean peatlands are high-altitude wetland ecosystems found throughout the arid central Andes of South America. They form through the establishment of specialized grasses and cushion sedges that are well-adapted to cold temperatures, in areas where groundwater emerges. The Silala River is a groundwater-fed high-Andean fluvial system, which emerges in various springs that generate wetlands, the Cajones and Orientales (Bolivia), the river's headwater sources, and the Quebrada Negra (Chile) being the most important. This article reviews detailed monitoring undertaken in the undisturbed Quebrada Negra wetland to provide insights into wetland processes, and to compare its functioning to that of the Bolivian wetlands, which were channelized a century ago. Vegetation composition was found to be similar among the three wetlands, and their spatiotemporal vegetation cover distribution showed strong seasonal and interannual variability. The channelized Bolivian wetlands have the highest annual actual evapotranspiration values (~700 mm, due to their higher vegetation vigor), as estimated using remote sensing, ~10% greater than that obtained in the undisturbed Quebrada Negra wetland. For the Quebrada Negra wetland, groundwater monitoring revealed that hydraulic head contours are consistent with the topography, although water sources to the wetland are complex to identify. While significant groundwater inflows arise at the wetland edges, upwelling and downwelling conditions are observed at various locations within the wetland, similar to other high-Andean wetlands. The observations suggest that while the underlying groundwater discharge sustains the saturated conditions of the wetland, the spatial variability of groundwater inputs results in a negligible impact of channelization on wetland evapotranspiration.
dc.fechaingreso.objetodigital2024-04-12
dc.fuente.origenScopus
dc.identifier.doi10.1002/wat2.1683
dc.identifier.eissn2049-1948
dc.identifier.scopusidSCOPUS_ID:85168158948
dc.identifier.urihttps://doi.org/10.1002/wat2.1683
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/80100
dc.information.autorucEscuela de Ingeniería; Suarez Poch Francisco; 0000-0002-4394-957X; 15891
dc.information.autorucFacultad de Ciencias Biológicas; Latorre Hidalgo Claudio; 0000-0003-4708-7599; 55090
dc.language.isoen
dc.nota.accesocontenido parcial
dc.publisherJohn Wiley and Sons Inc
dc.revistaWiley Interdisciplinary Reviews: Water
dc.rightsacceso restringido
dc.subjectBofedales
dc.subjectHydrogeological monitoring
dc.subjectHydrological monitoring
dc.subjectPlant diversity
dc.subject.ddc500
dc.subject.deweyCienciases_ES
dc.subject.ods06 Clean water and sanitation
dc.subject.ods15 Life on land
dc.subject.odspa06 Agua limpia y saneamiento
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleThe Quebrada Negra wetland study: An approach to understand plant diversity, hydrology, and hydrogeology of high-Andean wetlands
dc.typeartículo
sipa.codpersvinculados15891
sipa.codpersvinculados55090
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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