RT Conference Proceedings
T1 Hydrodynamic changes in Guadalquivir estuary (Spain) due to a hypothetical tidal marsh restoration project
A1 Moreno-Navas, Juan
A1 Pulido, Ángel
A1 García, Rodrigo
A1 Delgado-Cabello, Javier
A1 García-Lafuente, Jesús
K1 Hidrodinámica
K1 Puertos
AB Tidal marsh restoration will be an important management issue in Guadalquivir Estuary in thenear future. The Guadalquivir Estuary has been anthropologically modified several times, the riveris bounded by embankments to protect rice and cotton plantations from tidal inundation, themeanders have been transformed into straight sections, about 80 % of the original marsh surfacehas been lost and approximately one-fourth of the total surface of the estuary is now part of twoprotected areas, one of them is a UNESCO, MAB Biosphere Reserve.A hypothetical restoration of tidal marshes will benefits different species and functions based onlocation, elevation, adjacent habitats, degree of hydrodynamic connectivity and would reduce thepresent high levels of turbidity. The restoration projects should be accompanied by studies for abetter understanding of the environmental changes expected.A Large-scale construction of tidal marsh will change tidal dynamics, modify the tidal inundationregime and the freshwater flow over the surrounding areas. A hydrodynamic model has beendeveloped to study changes in the tidal propagation and the flow regime due to a hypotheticalmarsh restoration.The model has been calibrated and the output has been validated with in situ water elevation andgood agreement between modelled and real measurements have been obtained. A sensitivity testchanging the size, locations from the estuary mouth and depth has been carried out to highlightsimpacts over the tidal propagation, flow regime, salinity intrusion and the tidal inundation regime.Our preliminary results show that the tidal elevation and the current speed will be considerablyaffected in the estuary. The model open the possibility to study interactions among the tidal marshrestoration project, Seville port operations, fisheries and agricultural activities. The numericalmodel will be a powerful tool in restoration projects in a complex socio-ecological system.
YR 2018
FD 2018-10-01
LK https://hdl.handle.net/10630/16558
UL https://hdl.handle.net/10630/16558
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.Autoridad Portuaria de Sevilla
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026