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(Article of periodic en Anglais - 2013)

Document title

Effects of land use, slope gradient, and soil and water conservation structures on runoff and soil loss in semi-arid Northern Ethiopia

Authors(s) and Affiliation(s)

TAYE G. (1) ; POESEN J. (2) ; VAN WESEMAEL B. (3) ; VANMAERCKE M. (2 4) ; TEKA D. (1) ; DECKERS J. (2) ; GOOSSE T. (2) ; MAETENS W. (2) ; NYSSEN J. (5) ; HALLET V. (6) ; HAREGEWEYN N. (7) ;
(1) Dept. of Land Resources Management and Environmental Protection, Univ., Mekelle, ETHIOPIE
(2) Dept. of Earth and Environmental Sciences, Katholieke Univ., Leuven, BELGIQUE
(3) Georges Lemaitre Center for Earth and Climate Research, Earth and Life Inst. Univ. Catholique de Louvain, Louvain-la-Neuve, BELGIQUE
(4) Research Foundation Flanders, Brussel, BELGIQUE
(5) Dept. of Geography, Univ., Ghent, BELGIQUE
(6) Dept. of Geology, Univ., Namur, BELGIQUE
(7) Arid Land Research Center, Univ., Tottori, JAPON

Abstract

The aim of this study was to investigate the effects of typical land-use types, slope gradients, and different soil and water conservation (SWC) structures on runoff and soil loss at the runoff-plot scale. Six runoff measuring sites, corresponding to three slope gradients, were established for cropland (cultivated land for annual crop production) and rangeland (heavily grazed land on hillslopes with high rock-fragment cover) at Mayleba catchment in Tigray, Ethiopia. SWC structures tested were stone bunds, trenches, and stone bunds with trenches, in addition to control plots. In total, 21 large runoff plots (with lengths of 60 to 100 m ) were monitored daily for runoff production and soil loss during the main rainy season (July-September) in 2010. It is highlighted that the effects of SWC structures on runoff production and soil loss are considerable; hence, it is crucial to consider these effects for optimal design of water-harvesting schemes such as micro-dams that collect and store surface runoff for irrigation development in the Ethiopian highlands.

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2013, vol. 34, no3 [pp. 236-259]

Bibliographic references : 3 p.

Collation : 9 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/02723646.2013.832098

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