Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Assessing the performance of a spatially distributed soil erosion and sediment delivery model (WATEM/SEDEM) in northern ethiopia
Land Degradation and Development, Volume 24, No. 2, Year 2013
Notification
URL copied to clipboard!
Description
Most regional-scale soil erosion models are spatially lumped and hence have limited application to practical problems such as the evaluation of the spatial variability of soil erosion and sediment delivery within a catchment. Therefore, the objectives of this study were as follows: (i) to calibrate and assess the performance of a spatially distributed WATEM/SEDEM model in predicting absolute sediment yield and specific sediment yield from 12 catchments in Tigray (Ethiopia) by using two different sediment transport capacity equations (original and modified) and (ii) to assess the performance of WATEM/SEDEM for the identification of critical sediment source areas needed for targeting catchment management. The performance of the two model versions for sediment yield was found promising for the 12 catchments. For both versions, model performance for the nine catchments with limited gully erosion was clearly better than the performance obtained when including the three catchments with significant gully erosion. Moreover, there is no significant difference (alpha 5 per cent) between the performances of the two model versions. Cultivated lands were found to be on average five times more prone to erosion than bush-shrub lands. The predicted soil loss values in most parts of Gindae catchment are generally high as compared with the soil formation rates. This emphasises the importance of implementing appropriate soil and water conservation measures in critical sediment source areas prioritising the steepest part of the catchment (i.e. areas with slope >50 per cent). The applicability of the WATEM/SEDEM model to environments where gully erosion is important requires the incorporation of permanent gully and bank gully erosion in the model structure. © 2011 John Wiley & Sons, Ltd.
Authors & Co-Authors
Haregeweyn, Nigussie
Japan, Tottori
Tottori University
Ethiopia, Makale
Mekelle University
Poesen, Jean W.A.
Belgium, Leuven
Ku Leuven
Verstraeten, Gert
Belgium, Leuven
Ku Leuven
Govers, Gerard J.
Belgium, Leuven
Ku Leuven
de Vente, J.
Spain, Almeria
Csic - Estación Experimental de Zonas Áridas Eeza
Nyssen, Jan
Belgium, Ghent
Universiteit Gent
Deckers, Jozef A.
Belgium, Leuven
Ku Leuven
Moeyersons, Jan
Belgium, Tervuren
Royal Museum for Central Africa
Statistics
Citations: 135
Authors: 8
Affiliations: 6
Identifiers
Doi:
10.1002/ldr.1121
ISSN:
10853278
e-ISSN:
1099145X
Research Areas
Environmental
Study Locations
Ethiopia