Soil degradation in Central Spain due to sheet water erosion by low-intensity rainfall events

Auteurs :
MARQUES, M.J.
BIENES, R.
PÉREZ-RODRÍGUEZ, R.
JIMÉNEZ, L.

Description :
Runoff and sediment lost due to water erosion were recorded for 36 plots with varying types of vegetative cover located on sloping gypsiferous fields in the South of Madrid. Vegetative cover above 40% is capable of dissipating the relationship between runoff and sediment loss, especially when the vegetative cover is greater than 60%. The soil here experiences a chronic loss of 0.02 mm annually as a consequence of frequent, moderate events, in addition to any loss produced by extraordinary events, which, though less frequent, are much more erosive. If moderate events are ignored, an important part of soil loss will be lost in the long run.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 3, p. 414-423, nombre de pages : 10, Collation : Illustration, Références bibliographiques : 69 ref.

Date :
2008

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley