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resumen

Resumen
Rainwater harvesting (RWH) has been essential for the establishment of human settlements in many dry regions of the world that lacked suitable surface or groundwater resources. A vast fraction of the South American Dry Chaco ecoregion still relies on RWH to support, not only livestock production, but domestic and industrial uses as well. As a result, water capture and storage infrastructure is widely disseminated throughout the region. In this paper we [ver mas...]
dc.contributor.authorMagliano, Patricio Nicolás
dc.contributor.authorMurray, Francisco
dc.contributor.authorBaldi, Germán
dc.contributor.authorAurand, Santiago Javier
dc.contributor.authorPáez, Ricardo Andrés
dc.contributor.authorHarder, Wilbert
dc.contributor.authorJobbagy Gampel, Esteban Gabriel
dc.date.accessioned2018-04-05T12:47:37Z
dc.date.available2018-04-05T12:47:37Z
dc.date.issued2015-12
dc.identifier.issn0140-1963
dc.identifier.otherhttps://doi.org/10.1016/j.jaridenv.2015.03.012
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2172
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0140196315000865
dc.description.abstractRainwater harvesting (RWH) has been essential for the establishment of human settlements in many dry regions of the world that lacked suitable surface or groundwater resources. A vast fraction of the South American Dry Chaco ecoregion still relies on RWH to support, not only livestock production, but domestic and industrial uses as well. As a result, water capture and storage infrastructure is widely disseminated throughout the region. In this paper we characterized the most typical RWH systems in two contrastingly developed sub-regions of Dry Chaco, ranging from extensive ranching to intensive beef and dairy production (central Argentina and western Paraguay, respectively). In each sub-region, we quantified RWH systems density, spatial distribution and associations with landscape features; furthermore, we illustrated how the daily dynamic of water stock in a typical RWH system contributes to assess their capture and storage efficiency. We found that randomly distributed low sophisticated RWH systems prevailed in central Argentina, while clustered distributed high sophisticated ones were more common in western Paraguay. RWH systems density was ten times higher in western Paraguay (0.94 vs. 0.098 units/km2), showing an exponential association with land cleared fraction and proximity to villages. The daily dynamic of water stock of the RWH impoundment showed that water harvest events were exponentially associated with precipitation magnitude events (R2 = 0.86), while annual water losses were explained by infiltration and evaporation fluxes (59 vs. 41%, respectively). Across both sub-regions, RWH accounts for less than 1% of the annual precipitation, playing a minor role on the regional water balance; however at a local level, they can affect several hydrological fluxes including the onset of groundwater recharge and the mitigation of extreme runoff events.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Arid Environments 123 : 93-102 (December 2015)es_AR
dc.subjectAgua de Lluviaes_AR
dc.subjectRainwatereng
dc.subjectRain Water Managementeng
dc.subjectBalance Hídricoes_AR
dc.subjectWater Balanceeng
dc.subjectEscorrentiaes_AR
dc.subjectRunoffeng
dc.subjectZonas Aridases_AR
dc.subjectArid Zoneseng
dc.subject.otherGestión del Agua de Lluviaes_AR
dc.subject.otherRegión Chaco Arido, Argentinaes_AR
dc.titleRainwater harvesting in Dry Chaco: Regional distribution and local water balancees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA San Luises_AR
dc.description.filFil: Magliano, Patricio Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.description.filFil: Murray, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis. Agencia de Extensión Rural San Luis; Argentinaes_AR
dc.description.filFil: Baldi, Germán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.description.filFil: Aurand, Santiago Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Luis; Argentinaes_AR
dc.description.filFil; Harder, Wilbert. Servicio Agropecuario Paraguayo – Chortitzer Komitee; Paraguayes_AR
dc.description.filFil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentinaes_AR
dc.subtypecientifico


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