RT Journal Article T1 Assessment of the hydrological status of Doñana dune ponds: a natural World Heritage Site under threat A1 Fernández Ayuso, Ana A1 Rodríguez-Rodríguez, Miguel A1 Benavente, J. K1 Surface water–groundwater interaction K1 Water balance K1 Doñana Biological Reserve K1 Hydrochemistry K1 Sand dune ponds AB The hydrological response of shallow ponds to groundwater withdrawal has been of growing concern in the Doñana National Park (southern Spain) in recent decades. This study examines the role of groundwater in maintaining the hydroperiod (i.e. the hydrological regime) in the park’s main dune ponds, by quantifying the groundwater fluxes to/from them. The hydrological characterization was performed by applying different methodologies. Daily hydrological balances registered in the ponds revealed groundwater contributions ranging from 80% of the total water inflows (i.e. groundwater discharge) to a net groundwater recharge from the ponds to the aquifer, and enabled the studied water bodies to be classified as discharge or recharge systems. The recharge systems must have been influenced by the lowering of piezometric levels due to groundwater extraction for urban supply in a nearby coastal resort. PB Taylor & Francis YR 2018 FD 2018 LK https://hdl.handle.net/10433/25977 UL https://hdl.handle.net/10433/25977 LA en NO Fernández-Ayuso, A., Rodríguez-Rodríguez, M., & Benavente, J. (2018). Assessment of the hydrological status of Doñana dune ponds: a natural World Heritage Site under threat. Hydrological Sciences Journal, 63(15-16), 2048-2059.https://doi.org/10.1080/02626667.2018.1560449 NO The funding for this research came from the Guadalquivir River Basin Authority (Project: Hydrological monitoring and modelling of the pond–aquifer interaction in the stabilized dunes in Doñana). NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales DS RIO RD May 22, 2026