IGB

Connexion

(Article of periodic en Anglais - 2013)

Document title

Predicting runoff and sediment connectivity and soil erosion by water for different land use scenarios in the Spanish Pre-Pyrenees

published at : Scales in soil erosion

Authors(s) and Affiliation(s)

LÓPEZ-VICENTE M. (1) ; POESEN J. (1) ; NAVAS A. (2) ; GASPAR L. (2) ;
(1) Dep. of Earth and Environmental Sciences, K. Univ., Geo-Inst., Heverlee, BELGIQUE
(2) Dep. of soil and Water, EEAD-CSIC, Zaragoza, ESPAGNE

Abstract

This study seeks to assess the effect of agricultural terraces, irrigation channels, trails, and land abandonment on the hydrological connectivity of a small catchment and its consequences on predicting rates of soil erosion under 4 different scenarios of land uses. The AA. tackle this goal by running a complex index of hydrological connectivity and a semi-physically based model of soil erosion with geographic information system (GIS) in the Estanque de Arriba catchment (Spanish Pre-Pyrenees) where 83 soil samples were collected. The different maps of hydrological connectivity were used to create runoff and sediment trap effectiveness masks that were included in the assessment of the effective cumulative runoff. The results showed that : connectivity is high in irrigation channels and agricultural terraces; vegetation factor is as important as the linear landscape elements; more erosion is predicted at the early stage of future land abandonment.

Source

Thematical fascicle

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 102 [pp. 62-73]

Bibliographic references : 49 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2011.01.001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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