Articles | Volume 373
12 May 2016
 | 12 May 2016

Reservoir impacts downstream in highly regulated river basins: the Ebro delta and the Guadalquivir estuary in Spain

María J. Polo, Albert Rovira, Darío García-Contreras, Eva Contreras, Agustín Millares, Cristina Aguilar, and Miguel A. Losada

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Cited articles

Alvarado-Aguilar, D., Jiménez, J. A., and Nicholls, R. J.: Flood hazard and damage assessment in the Ebro delta (NW Mediterranean) to relative sea level rise, Nat. Hazards, 62, 1301–1321, 2012.
Batalla, R. J., Gómez, J. C., and Kondolf, G. M.: Reservoir-induced hydrological changes in the Ebro River Basin (NE Spain), J. Hydrol., 290, 117–136, 2004.
Contreras, E.: Influence of the fluvial discharges on the water quality of the Guadalquivir Estuary, PhD thesis, University of Cordoba, Spain, 171 pp., 2012.
Contreras, E. and Polo, M. J.: Measurement frequency and sampling spatial domains required to characterize turbidity and salinity events in the Guadalquivir estuary (Spain), Nat. Hazards Earth Syst. Sci., 12, 2581–2589,, 2012.
Díez-Minguito, M., Baquerizo, A., Ortega-Sánchez, M., Navarro, G., and Losada, M. A.: Tide transformation in the Guadalquivir estuary (SW Spain) and process-based zonation, J. Geophys. Res., 117, C03019,, 2012.
Short summary
Regulation by reservoirs affects both the freshwater regime and the sediment delivery downstream. Spain is one the countries with more water storage capacity by reservoirs in the world. The spatial redistribution of the seasonal and annual water storage in reservoirs mainly for irrigation and urban supply has resulted in significant environmental impacts downstream. This work shows these effects in the Guadalquivir and the Ebro River basins, two of the largest regulated areas in Spain.