Groundwater-Surface Water Interactions in “La Charca de Suárez” Wetlands, Spain
Metadatos
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Blanco Coronas, Ángela María; López Chicano, Manuel; Calvache Quesada, María Luisa; Benavente Herrera, José; Duque, CarlosEditorial
MDPI
Materia
Coastal lagoons Groundwater exchange Anthropized wetland River plain Detrital aquifer
Fecha
2020-01-25Referencia bibliográfica
Blanco-Coronas, A. M., López-Chicano, M., Calvache, M. L., Benavente, J., & Duque, C. (2020). Groundwater-surfacewater interactions in “La Charca de Suárez” Wetlands, Spain. Water (switzerland), 12(2).
Patrocinador
This study was supported by grant CGL2016-77503-R from the Ministry of Economy and Competitiveness (MINECO), cofounded by the European Regional Development Fund (ERDF) of the European Union (EU), and the RNM-369 research group of the regional government of Andalusia.Resumen
La Charca de Suárez (LCS) is a Protected Nature Reserve encompassing 4 lagoons located
300 m from the Mediterranean coast in southern Spain. LCS is a highly anthropized area, and its
conservation is closely linked to the human use of water resources in its surroundings and within the
reserve. Different methodologies were applied to determine the hydrodynamics of the lagoons and
their connection to the Motril-Salobreña aquifer. Fieldwork was carried out to estimate the water
balance of the lagoon complex, the groundwater flow directions, the lagoons-aquifer exchange flow
and the hydrochemical characteristics of the water. The study focussed on the changes that take place
during dry-wet periods that were detected in a 7-month period when measurements were collected.
The lagoons were connected to the aquifer with a flow-through functioning under normal conditions.
However, the predominant inlet to the system was the anthropic supply of surface water which
fed one of the lagoons and produced changes in its flow pattern. Sea wave storms also altered the
hydrodynamic of the lagoon complex and manifested a future threat to the conservation status of the
wetland according to predicted climate change scenarios. This research presents the first study on
this wetland and reveals the complex hydrological functioning of the system with high spatially and
temporally variability controlled by climate conditions and human activity, setting a corner stone for
future studies.