Influence of Groundwater Discharge on Temporal Evolution in Two Wetlands of an Intensely Anthropized Area: Analysis Using an Integrated Approach

The Campo de Dalías is a coastal plain, which has undergone a significant change in land use and intensive exploitation of groundwater. A series of diverse data has been analyzed: aerial and satellite images (1956–2013), evolution of the water table (1973–2019), and exploitation of different aquifer...

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Bibliographic Details
Published in:Water (Basel) 2021-03, Vol.13 (5), p.697
Main Authors: Sánchez-Martos, Francisco, López-Martos, José, Molina Sánchez, Luis, Gisbert-Gallego, Juan, Navarro-Martínez, Francisco
Format: Article
Language:English
Subjects:
Analysis
Aquatic resources
Aquifers
Chemical analysis
Climate change
Coastal plains
Evolution
Exploitation
Floods
Greenhouses
Groundwater
Groundwater discharge
Groundwater management
Groundwater overdraft
Hydrologic data
Hydrology
Land use
Management
Plains
Satellite imagery
Sea-water
Seawater
Spain
Surface area
Surface water
Surface-groundwater relations
Water
Water analysis
Water table
Wetland management
Wetlands
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Summary:The Campo de Dalías is a coastal plain, which has undergone a significant change in land use and intensive exploitation of groundwater. A series of diverse data has been analyzed: aerial and satellite images (1956–2013), evolution of the water table (1973–2019), and exploitation of different aquifers (1964–2017). The results indicate: (1) increase in the surface area occupied by greenhouses, (2) increase in abstraction of groundwater, and (3) an opposite trend in the piezometric evolution of the two aquifers (deep and shallow). All this has had a significant effect on the evolution of the “Punta Entinas” wetland, which has shown a continuous increase in flooded surface area, especially pronounced since 1994. Its waters have intermediate hydrochemical characteristics between seawater and groundwater and reflect the local influence of groundwater on the wetland. The applied methodology is useful in areas with sustained human activity, land use changes, and intensive groundwater exploitation, and can contribute to the understanding of surface water-groundwater dependence and wetland management.
ISSN:2073-4441
2073-4441
DOI:10.3390/w13050697