Physicochemical characteristics of playa-lake sediments located in the western External Betics

  1. László Halmos 1
  2. Joaquín Delgado Rodríguez 2
  3. Miguel Rodríguez-Rodríguez 1
  4. Alejandro Jiménez Bonilla 1
  5. Manuel Díaz Azpiroz 1
  1. 1 Universidad Pablo de Olavide
    info
    Universidad Pablo de Olavide

    Sevilla, España

    ROR https://ror.org/02z749649

    Geographic location of the organization Universidad Pablo de Olavide
  2. 2 Universidad de Sevilla
    info
    Universidad de Sevilla

    Sevilla, España

    ROR https://ror.org/03yxnpp24

    Geographic location of the organization Universidad de Sevilla
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 2022

Issue: 72

Pages: 39-42

Type: Article

DOI: 10.55407/GEOGACETA98433 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Geogaceta

Sustainable development goals

Abstract

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.

Data source: Dialnet