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(Article of periodic en Anglais - 2008)

Document title

Erosion and terrace failure due to agricultural land abandonment in a semi-arid environment

Authors(s) and Affiliation(s)

LESSCHEN J.P. (1) ; CAMMERAAT L.H. (1) ; NIEMAN T. (1) ;
(1) Inst. for Biodiversity and Ecosystem Dynamics, Univ., Amsterdam, PAYS-BAS

Abstract

The aim of this study was to assess the extent and causes of erosion and terrace failure on abandonned fields and to discuss options for mitigation. The study was carried out in the Carcavo basin, a semi-arid catchment in southeast Spain. At catchment scale all abandonned fields were surveyed and characteristics of each field were described. Additionally the AA. surveyed abandonned and cultivated terraces and used statistical analyses to determine the factors that influence terrace failure. At field scale they constructed a detailed digital elevation model (DEM) for an abandoned terrace field in order to calculate sediment losses since time of abandonment. The results revealed that more than half the abandoned fields had moderate to severe erosion and the statistical analysis showed that these fields had significantly steeper slopes, were terraced and had cereals as previous land use. Factors that increase the risk of terrace failure were land abandonment, steeper terrace slope, loam texture, valley-bottom position and shrubs on the terrace wall

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2008, vol. 33, no10 [pp. 1574-1584]

Bibliographic references : 53 ref.

Collation : 3 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1676

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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