Potential water recharge areas in the micro-basins of Cachí district, Cartago, Costa Rica

 

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Autorzy: Álvarez Jiménez, María, Ramírez Granados, Pablo, Castro Solís, José, Solís Torres, Ligia
Format: artículo original
Status:Versión publicada
Data wydania:2021
Opis:Introduction: Precipitation is the most important source in water recharge zones and to ensure its availability and management it is important to evaluate changes in land use. Objective: To determine the potential water recharge areas in six Cartago micro-basins. Methods: We determined hydrogeological units through gauges, and physical and hydraulic properties on the field. We used topographic curves to generate a digital elevation model and longitudinal profiles. Additionally, we produced a land-use change map and determined soil water balance. Results: The area presents good hydrogeological conditions in terms of springs, pinpointing the hydraulic connection of the units, and the soil favors water recharge in the upper parts. Above, where the springs are located, half of the land has forest cover, facilitating infiltration. The rest sustains agricultural activities (39% in the middle and lower parts of the basins). Forest areas present lower potential recharge values (approx. <611.4mm) than areas of crops and pasture (792.32-796.29mm). Conclusion: The site presents good hydrogeological conditions and areas of crops and pasture have higher potential recharge values than forests.
Kraj:Portal de Revistas UNED
Instytucja:Universidad Estatal a Distancia
Repositorio:Portal de Revistas UNED
Język:Español
OAI Identifier:oai:revistas.investiga.uned.ac.cr:article/3683
Dostęp online:https://revistas.uned.ac.cr/index.php/cuadernos/article/view/3683
Słowo kluczowe:Water resource
aquifer
land use
Recurso hídrico
acuífero
utilización de la tierra