Physicochemical characteristics of playa-lake sediments located in the western External Betics
DOI:
https://doi.org/10.55407/geogaceta98433Keywords:
physicochemical parameter, saline lake, endorheic basin, geochemistry, environmentAbstract
In the western External Betics several temporal saline water bodies (playa-lakes) constitute singular environments that are protected due to their ecological and hydrological values. Changes in their hydrological status due to both natural and human-induced changes alter the characteristics of their sediments. A detailed determination of the pH and electrical conductivity in the sediments of six playa-lakes within a range of degradation statuses was made in this study. The detailed examination of such geochemical variables has allowed us to establish three categories of degradation in the studied systems. Our results highlight the extreme vulnerability of this playa-lakes caused mainly by human activities, particularly those related to land-use change for agriculture, as well as the necessity of its protection based on scientific criteria.
References
Balanyá, J.C., Crespo-Blanc, A., Díaz-Azpiroz, M., Expósito, I., Torcal, F., Pérez-Peña, V. and Booth-Rea, G. (2012). Geologica Acta 10, 249-263.
Beck, H.E., Zimmermann, N.E., McVicar, T.R., Vergopolan, N., Berg, A., and Wood, E.F. (2020). Scientific Data 7, 274. https://doi.org/10.1038/s41597-020-00616-w
Bohn, H.L., McNeal, B.L., O'Connor and G.A. (2001). Soil Chemistry. John Wiley & Sons, New York, 307p.
Díaz-Azpiroz, M., Barcos, L., Balanyá, J.C., Fernández, C., Expósito, I. and Czeck, D.M. (2014). Journal of Structural Geology 68, 316-336. https://doi.org/10.1016/j.jsg.2014.05.010
Erdélyi, M. (1976). Acta Geologica Academiae Scientiarum Hungaricae 20, 287-309.
García, R., Jiménez Bonilla, A., Díaz-Azpiroz, M., Pérez Valera, F., Balanyá, J.C. and Expósito, I. (2016). Geo-Temas 16, 547-550.
Höbig, N., Mediavilla, R., Gibert, L. and Santisteban, J.I. (2016). Quaternary International 1-18.
Jiménez-Bonilla, A., Expósito, I., Balanyá, J.C., Barcos, L. and Diaz-Azpiroz, M. (2015). Geogaceta 57, 27-30.
Richards, L.A. (1954). Diagnosis and improvement of Saline and Alkali Soils. Agricultural Handbook 60, Washington, DC. https://doi.org/10.1097/00010694-195408000-00012
Rodríguez-Rodríguez, M., Green, J.A., López, R. and Martos Rosillo, S. (2012). Environmental Monitoring and Assessment 184, 792-810. https://doi.org/10.1007/s10661-011-2002-1
Stefanovics, P., Filep, Gy. and Füleky, Gy. (1999). Talajtan. Mezögazda Kiadó, Budapest, 470 p.
Tóth, J. (1963). Journal of Geophysical Research 68, 16, 4795-4812. https://doi.org/10.1029/JZ068i016p04795
https://es.climate-data.org/europe/espana/andalucia/antequera-56881/#climate-table (visited on 20th of March 2022).
Downloads
Published
How to Cite
Issue
Section
License
The Author retains the copyright and grants to the Geological Society of Spain the right of first publication and distribution of this article for the duration of the literary property under Spanish law, in all current or future media, being the work available simultaneously to its publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.
