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Título : Fluvial adjustments to soil erosion and plant cover changes in the central Spanish Pyrenees
Autor : Beguería, Santiago, López-Moreno, Juan I., Gómez-Villar, Amelia, Rubio, Virginia, Lana-Renault, Noemí, García-Ruiz, José María
Palabras clave : fluvial adjustments
sediment yield
fluvial incision
Fecha de publicación : Sep-2006
Editor: John Wiley & Sons
Resumen: Until the middle of the 20th century, Pyrenean rivers were characterized by braided channels, unstable sedimentary structures and an almost complete lack of plant cover in the alluvial plain, due to the high sediment yield in hillslopes and the occurrence of frequent and intense flooding. This was probably related to strong demographic pressures, including the cultivation of steep slopes, frequent fires, deforestation and overgrazing. Depopulation and farmland abandonment resulted in plant recolonization in formerly cultivated areas, causing a decrease in runoff and sediment yield. As a consequence, most Pyrenean rivers tend to reduce the width of the alluvial plain and to replace the braided pattern with an incised, somewhat meandering pattern, involving the construction of new terrace levels and the stabilization of fluvial bars.
Descripción : 23 Pag., 1 Tabl., 5 Fig., 1 Phot. The definitive version is available at:
Versión del editor:
ISSN: 0435-3676
DOI: 10.1111/j.1468-0459.2006.00293.x
Citación : Geografiska Annaler: Series A, Physical Geography 88 (3): 177-186 (2006)
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