Análisis del hidroperíodo de tres lagunas de la Reserva Biológica de Doñana (2018-2020)
- 1 Universidad Pablo de Olavide. Carretera de Utrera km 1. 41013 (Sevilla)
ISSN: 0213-683X
Année de publication: 2021
Titre de la publication: Comunicaciones presentadas en la LXX Sesión Científica / SGE-Virtual, 28 de mayo de 2021
Número: 70
Pages: 43-46
Type: Article
D'autres publications dans: Geogaceta
Résumé
This study analyses the changes produced in the hydroperiod of the Santa Olalla, Taraje and Zahillo ponds, located on the coastal aquifer of the Doñana littoral aeolian mantle, to detect their degree of alteration. The water level was recorded from 2018 January 1st to 2020 June 26th. The 2019 was an exceptionally dry year, with a record of less than 200 mm/year of accumulated precipitation. It is worth noting the different degree of dependence of these ponds to rainfall. Although the Santa Olalla pond is resilient against dry periods, thanks to groundwater discharge, Zahillo pond is highly dependent on rainfall and has remained dry most of the study period. The lockdown caused by Covid-19 pandemic during the spring of 2020, has not implied any significant change in the withdrawal of groundwater close to the study area. Therefore, no positive hydrological changes have been detected in the ponds during such period.