RT Journal Article T1 Hydro-environmental changes assessment after Guadalhorce River mouth channelization. An example of hydromodification in southern Spain A1 Nieto-López, José Manuel A1 Barberá-Fornell, Juan Antonio A1 Andreo-Navarro, Bartolomé A1 Ramírez-González, José Miguel A1 Rendón Martos, Manuel K1 Guadalhorce - Cauces AB The Guadalhorce River mouth (Málaga, Southern Spain) was channelized between 1997 and 2003 to reduceflooding potential in adjacent densely populated sections of Málaga. The channel was bifurcated near theMediterranean Sea, surrounding an isolated wetland complex composed of eight different ponds. Groundwaterlevel and wetland-stage data, combined with water-chemistry data from wells and wetlands, collected since1977, have documented the hydrological and ecological responses to channelization. The results show thatchannelization has extended the tidal influence inland from the Mediterranean Sea through the GuadalhorceRiver and the subjacent coastal aquifers, producing a change in groundwater hydrodynamics. The isolation ofthe wetlands resulting from channelization has provoked a significant salinization of both surface water andgroundwater, the extent of which varies among wetlands. These decadal-scale changes in water chemistry havepromoted the appearance or increase of halophilic vegetation and have caused a shift from diving birds topredominantly shorebirds in some wetlands. Documentation of these unexpected ecosystem responses is a necessary first step for land managers who need to consider groundwater and surface water as a single resource,particularly in groundwater-dependent ecosystems along the densely populated and ecologically sensitiveMediterranean coastal areas. PB Elsevier YR 2020 FD 2020-02-01 LK https://hdl.handle.net/10630/30132 UL https://hdl.handle.net/10630/30132 LA eng NO Nieto-López, J.M., Barberá, J.A., Andreo, B., Ramírez-González, J.M., Rendón-Martos, M., 2020. Hydro-environmental changes assessment after Guadalhorce River mouth channelization. An example of hydromodification in southern Spain. Catena 189, 104461. https://doi.org/10.1016/j.catena.2020.104461. NO This work was supported by the Andalusian Regional Agency of Environment and Land Management. It is a contribution of the Research Group RNM-308 of the Andalusian Government to the project “Hydrological and environmental restoration of wetlands in the delta of Guadalhorce River (Málaga, Spain) reusing treated wastewater”, funded by the CocaCola Foundation (Atlanta, US), Grant ID: 28374173. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026