Environmental Geology

, Volume 52, Issue 7, pp 1375–1386 | Cite as

Hydro-morphological characteristics and hydrogeological functioning of a wetland system: a case study in southern Spain

Original Article
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Abstract

The analysis and interpretation of physical and limnological parameters combined with hydrochemical (major ions and stable isotopes) analyses enabled us to evaluate the hydrogeological functioning and the hydrogeochemical evolution of groundwater in two adjacent lakes related to a karstic aquifer (Archidona, southern Spain). Lake water, groundwater and the outflow from a spring, were monitored periodically from 1998 to 1999 and sporadically from 2000 to 2006. The evolution of groundwater chemistry from recharge (dolines) to discharge areas (spring) showed an increment of 20% in magnesium and 15% in sulphate, and such higher increments were recorded for the water from the lakes, suggesting the existence of different hydrogeological paths. A simple water budget model, together with morphological interpretation, suggests that groundwater discharge into the lakes is of relative importance to the input into these systems. Finally, we believe that the development of a new typology for hydro-morphological elements, by means of several hydrological factors and the assessment of pressures and impacts will be useful for the correct management of these lakes and other semi-arid aquatic ecosystems.

Keywords

Aqueous geochemistry Environmental isotopes Karst Lake typology Southern Spain 
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Notes

Acknowledgments

This work has been supported by a Guadalquivir River Basin Authority Project (UPO-300401.2302). Chemical analyses and elaboration of some figures were carried out with the help of the geologist J. Bruque. Suggestions made by Dr C. Kohfahl (Freie University Berlin) have improved the manuscript in many ways. We also thank anonymous reviewer for his critical and constructive comments when reviewing the manuscript and we are grateful to the editor for editorial revision.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • M. Rodríguez-Rodríguez
    • 1
  • F. Moral
    • 1
  • J. Benavente
    • 2
  1. 1.University Pablo de OlavideSevillaSpain
  2. 2.University of GranadaGranadaSpain

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