Morphometry of the upper basin of the Páez River, Costa Rica, and its relationship with infiltration

 

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Autores: Ramírez Granados, Pablo, Astorga Gättgens, Allan, Campos Bejarano, Lolita, Henríquez Henríquez, Carlos
Formato: artículo original
Estado:Versión publicada
Fecha de Publicación:2020
Descripción:Introduction: Morphometric studies are the basis of the hydrological study of a basin and have application in soil and water conservation. Little is known about the upper basin of the Páez River, Costa Rica, whose springs are used for livestock and vegetable cultivation. Objective: To establish the morphometry of the basin and evaluate infiltration and potential for groundwater recharge. Methods: We used digitized contour lines, every 5m, to build a Digital Elevation Model in Surfer (triangulation with linear interpolation). Results: The most influencing factor is the variation of the slopes, which are mostly oriented to the south. Morphometric analysis generated a rectilinear type curve indicating a state of non-equilibrium. Most streams are in order 1. The hydrological values of the soils vary significantly with slope, which, together with the basin shape, cause changes in groundwater recharge due to infiltration. The quantity of drains of order 1 is related to the permeability of the terrain and infiltration characteristics. Moderate values of drain density are an indicator of increased infiltration and of high potential for groundwater recharge. Conclusions: The hydrological properties of the upper basin of the Páez river are conditioned by its morphometry, especially by the variations in the slopes between contours and the dynamics of the drainage network.
País:Portal de Revistas UNED
Institución:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Lenguaje:Español
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/3142
Acceso en línea:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3142
Palabra clave:Watershed geometry
Hypsometric curve
Terrain slope
Infiltration
Drainage network
Geometría de cuencas
Red de drenajes
Curva hipsométrica
Pendiente del terreno
Infiltración