Soil salinization processes in small-lake Ballestera wetland ecosystem (La Lantejuela, Seville, Spain)

  • F. Diaz del Olmo University of Seville, Seville, Spain
  • J. M. Recio Espejo University of Córdoba, Córdoba, Spain
  • C. Borja Barrera University of Seville, Seville, Spain
  • R. Cámara Artiga University of Seville, Seville, Spain
Keywords: thermo-mediterranean environment, salinization, tirsification, Ballestera wetland ecosystem, Spain

Abstract

Salinization processes in soils with thermo-mediterranean-semiarid conditions within a confined environment (basin closed) are studied in Natural Reserve Ballestera small-lake ecosystems (Seville, Spain). Methodologically it is carried out a geopedological catena integrated by five drilling-profiles with depths between 0.20 and 1.50 m. A total of 21 pedo-sedimentary samples have been characterized through pH, electric conductivity, carbonates contents, magnetic susceptibility and texture determinations. The results show the presence of two different phases in the geopedological evolution of the ecosystem: one of them is previous to the geomorphological constitution of the existing wetland, characterized by carbonates and salts lateral lixiviation processes (vertisolization-tirsification processes determinant of a special black color in the soil), and the second one, later and current, distinguishing processes of salt accumulation (saline brines) and surface crust formations (saltcrete) of halite and gypsum with high value of electric conductivity (salinization and hydromorphic processes).

References

Beltrán, M., Moral, F., Rodríguez Rodríguez, M. (2012). Changes in the hydrological functioning of a playa-lake complex under increasing agriculture pressures (Andalusia, Southern, Spain). Water and Environment Journal, 26, 212–223.
CMAJA (2002). Plan Andaluz de Humedales. Consejería de Medio Ambiente de la Junta de Andalucía. Sevilla, 263 p. (in Spanish).
CMAJA (2005). Caracterización ambiental de humedales en Andalucía. Consejería de Medio Ambiente de la Junta de Andalucía. Sevilla, 511 p. (in Spanish).

Dearing, J. A. (1999). Environmental magnetic susceptibility: using the Bartington MS2 system. 2nd. Edi. Chi. Publ. Kenilworth. United Kingdom.
Díaz del Olmo, F., Recio Espejo, J. M. (1990). Suelos, paleosuelos y sedimentos correlativos. Metodología y avances recientes. Librería Andaluza. 107 p. (in Spanish).
Díaz del Olmo, F., Recio Espejo, J. M. (1991). Lagunas y áreas lacustres continentales de Andalucía occidental (geomorfología, suelos y evolución cuaternaria). Cuadernos de Investigación Geográfica. XVII (1-2), 25–36 (in Spanish).
Duchaufour, Ph. (1975) Manual de Edafolog¡a. Edit. Toray-Masson. Barcelona. 476 p. (in Spanish).
Guitian Ojeda, F., Carballas Fernandez, T. (1976). Técnicas de análisis de suelos. Edit. Pico-Sacro. Santiago. 288 p. (in Spanish).
FAO (1977). Guía para la descripción de perfiles de suelos. Roma, 77 p. (in Spanish).
FAO (1989). Soil map of the world 1:5.000.000. Rome, 125 p.
IGME (1997). Hoja geológica seria Magna a escala 1:50.000 (in Spanish).
MAPA (MINISTERIO DE AGRICULTURA PESCA Y ALIMENTACION) (1971): Métodos de análisis de suelos y agua. Madrid (in Spanish).
Munsell Color 1990. Munsell soil color chart. Koll morgen Instruments Corpo-ration. Maryland. EEUU.
Soil Taxonomy (1975): Soil taxonomy. A basic system of soil classification for making and interpreting soil surveys. Soil Conservation Service U.S. Departament of Agriculture. 436 p.
Soil survey England and Wales (1982): Soil Survey laboratory methods. Technical monographs № 6. Harpenden. England. 83 p.
Soil taxonomy (1975). Soil taxonomy. A basic system of soil classification for making and interpreting soil surveys. Soil Conservation Service, U.S. Departament of Agriculture, 436 p. (in Spanish).
U.S.D.A. (1973): Diagnóstico y rehabilitación de suelos salinos y sódicos. Edit. Limusa. Mexico. 172 p. (in Spanish).
Published
2019-03-18
How to Cite
Diaz del Olmo, F., Recio Espejo, J. M., Borja Barrera, C., & Cámara Artiga, R. (2019). Soil salinization processes in small-lake Ballestera wetland ecosystem (La Lantejuela, Seville, Spain). Fundamental and Applied Soil Science, 19(1), 22-25. https://doi.org/https://doi.org/10.15421/041904