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DIGITAL.CSIC
Article . 2012 . Peer-reviewed
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Formación de horizontes calizos en suelos osbre arenas silíceas del Parque Nacional de Doñana

Authors: Clemente Salas, Luis; Rodríguez Ramir, A.; Rodríguez Vidal, Joaquín; Cáceres Puro, L.;

Formación de horizontes calizos en suelos osbre arenas silíceas del Parque Nacional de Doñana

Abstract

[ES]: En el Parque Nacional de Doñiana se diferencian una serie de formaciones geomorfológicas de naturaleza arenosa. Su edafogénesis se encuentra favorecida por la mayor proximidad a la superficie del nivel freático y, como consecuencia, por la mayor cobertura vegetal (CLEMENTE el al., 1983 ; CLEMENTE el al.,1988). Las secuencias de suelos sobre arenas, fundamentalmente silíceas, van desde perfiles poco desarrollados (Typic Xeropsarmment) hasta otros con potentes horizontes orgánicos y fuertes fenómenos de hidromorfía (Histic Humaquept e, incluso, Histosoles) (SILJESTRÖM et al., 1994). Si bien esta es la catena normal de evolución edáfica en las arenas del Parque Nacional de Doñana, en determinados enclaves aparecen suelos saturados e incluso con horizontes calizos de origen diverso, cuya génesis ha ayudado enormemente a comprender la dinámica del territorio. En el presente trabajo se estudian tres perfiles de suelos, representativos de otras tantas áreas donde se originan horizontes calizos debido a causas diferentes.

[FR]: Malgré la nature essentiellement siliceuse du substrat sableux, des sols à horizons calcaires dont la gènese dépend de processus variés, apparaissent dans quelques secteurs du Parc National de Doñana: - dans le nord du Parc (Matasgordas), les dépôts fluviatiles limono-argileux calcaires, issus de la plateforme détritique pliocène et recouverts par un manteau éolien, constituent le matériau originel des horizons calcaires: - dans la zone de la Retuerta, leur genèse est liée à des phénomènes de remontée du niveau phréatique (superficiel ou profond); - dans le sud (Marismillas), les horizons calcaires sont liés à la dynamique progradante de la ligne de côte: les niveaux coquilliers déposés par la mer sont dissous par les fluctuations du niveau phréatique. Les carbonates libérés remontent et précipitent en surface par ascension capillaire.

4 páginas y anexos, 1 figura, 1 tabla, 10 referencias. Trabajo publicado con motivo del Coloquio Hispano-Francés: Medio Carbonatados Continentales. Sevilla, 20-22 de marzo, 1997. El segundo pdf es el trabajo completo de la publicación que se cita. Son 11 páginas, 2 figuras, 1 tabla, 17 referencias.

Programa Picasso de cooperación entre España y Francias. Acción Integrada (1995-96) nº289B, 316B y nº 113. GDR 1058 du CNRS. Grupo de Investigación PAI nº 4079: Cuaternario y Geomorfología. Programa Mercurio (1993). DGICYT Proyecto PS93-0105, UR93-0098, UR95-0073.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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