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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorGil Morales, Eydith Girleza
dc.contributor.authorTobón Marín, Conrado
dc.identifier.issnISSN: 2248-7026
dc.description.abstractPáramo ecosystems are located on the upper parts of the tropical mountains, below the snow line areas or in isolated areas where no glacier ecosystems occur. These ecosystems are considered important for their biodiversity, but mainly because they are permanent source of water for populations located at the upper and middle parts of the Andes. Recent studies indicate that ecosystems located at high altitudes, are more vulnerable to climate change and to changes in land use, which threatens the ecosystem services derived from them. There are very few studies in these ecosystems, within which, studies on the hydrological functioning are even scarcer, which seems to be related to their position in the top of the mountains and difficulties associated with the access to them. This implies that there is a need to create tools that allow us to study these ecosystems, overcoming the current difficulties. Hydrological TOPMODEL is used to investigate the hydrological functioning of the páramo of Chingaza, through a case study in la Chucua basin. For this, we calibrate and validate the model using two data sets of climate and the hydrology of the basin (climate and discharge from 2008 and 2009, respectively). Through the calibration procedure we obtain a high efficiency value of 0.76 model (coefficient Nash - Sutcliffe), which adequately represents the hydrological behavior of the páramo. Simulations with better adjustment between measured and predicted values of discharge, have low values of surface infiltration excess runoff, indicating high water storage capacity on the soils. This agrees with the predominance of subsurface flow in studied ecosystem, given the special characteristics of soils. Results also show the large influence of factors represented in the model (topography and soils), on water basin response to rainfall events. This is significant evidence of exceptional hydrological behavior of the páramos, mainly related to the presence of soil with high organic matter content. These results imply that TOPMODEL is a robust tool, able to represent in a precise manner the hydrological functioning of the basin La Chucua, and consequently it is expected that TOPMODEL can also represent hydrological conditions of Chingaza páramo.
dc.publisherUniversidad Nacional de Colombia
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Revista Facultad Nacional de Agronomía Medellín
dc.relation.ispartofRevista Facultad Nacional de Agronomía Medellín
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.subject.ddc57 Ciencias de la vida; Biología / Life sciences; biology
dc.subject.ddc58 Plantas / Plants
dc.titleHydrological modelling with TOPMODEL of Chingaza páramo, Colombia
dc.typeArtículo de revista
dc.relation.referencesGil Morales, Eydith Girleza and Tobón Marín, Conrado (2016) Hydrological modelling with TOPMODEL of Chingaza páramo, Colombia. Revista Facultad Nacional de Agronomía, 69 (2). pp. 7919-7933. ISSN 2248-7026
dc.subject.proposalThe Chucua basin

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Atribución-NoComercial 4.0 InternacionalThis work is licensed under a Creative Commons Reconocimiento-NoComercial 4.0.This document has been deposited by the author (s) under the following certificate of deposit