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dc.contributor.authorRey Benayas, José María 
dc.contributor.authorGarcía Sánchez-Colomer, Manuel
dc.contributor.authorEscudero, Adrián
dc.identifier.bibliographicCitationBiogeochemistry, 2004, v.69, n.2, p.207-225en
dc.descriptionLas figuras que contiene el documento se localizan al final del mismoes_ES
dc.description.abstractSoil properties of terrestrial ecosystems are controlled by a variety of factors that operate at different scales. We tested the role of abiotic and biotic factors that potentially influence spatial gradients of total ion content, acidity, carbon, total nitrogen, and total phosphorous in topsoil. We studied a network of Mediterranean montane meadows that spans a 2000-m altitudinal gradient. The analyzed factors were grouped into two spatial scales: a landscape scale (climate and land form) and a field scale (topography, soil texture, soil moisture, and plant community composition). Total ion content and acidity are the major and independent variation trends of soil geochemistry. Soil acidity, carbon, and nitrogen increased along the altitudinal gradient whereas there was no relationship between total ion content and phosphorous and elevation. Climate had no direct influence on the analyzed gradients; all effects of climate were indirect through plant community composition and/or soil moisture. The results point to three types of models that explain the gradients of soil chemical composition: (1) a predominantly biotic control of carbon and nitrogen, (2) a predominantly abiotic control of acidity, and (3) a combined biotic and abiotic control of total ionic content. No direct or indirect effects explained the gradient of phosphorous. In our study region (central Spain), climate is predicted to turn more arid and soils will lose moisture. According to our models, this will result in less acid and fertile soils, and any change in plant community composition will modify gradients of soil carbon, nitrogen, total ion content, and acidity.en
dc.publisherKluwer Academic Publishersen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Españaes_ES
dc.rights© Kluwer Academic Publishers, 2004es_ES
dc.subjectMediterranean plant communitiesen
dc.subjectSpatial scaleen
dc.subjectTotal ion contenten
dc.titleLandscape- and field-scale control of spatial variation of soil properties in Mediterranean montane meadowsen
dc.subject.ecienciaMedio Ambientees_ES
dc.subject.ecienciaEnvironmental scienceen
dc.contributor.affiliationUniversidad de Alcalá. Departamento de Ciencias de la Vida. Unidad docente Ecología
dc.relation.projectIDC129/91 (Comunidad de Madrid)
dc.relation.projectIDREN 2000–0745 (Ministerio de Ciencia y Tecnología)

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