A5082975744- Soil erosion and sediment transport
- Rangeland Management and Livestock Ecology
- Hydrology and Watershed Management Studies
- African history and culture analysis
- Hydrology and Sediment Transport Processes
- Agriculture and Rural Development Research
- Conservation, Biodiversity, and Resource Management
- Flood Risk Assessment and Management
- Landslides and related hazards
- Hydropower, Displacement, Environmental Impact
- Groundwater and Watershed Analysis
- Aquatic Ecosystems and Biodiversity
- Land Rights and Reforms
- Aeolian processes and effects
- Irrigation Practices and Water Management
- Transboundary Water Resource Management
- Land Use and Ecosystem Services
- Water resources management and optimization
- Agriculture, Land Use, Rural Development
- Soil and Land Suitability Analysis
- African Botany and Ecology Studies
- Ecology and Vegetation Dynamics Studies
- Geology and Paleoclimatology Research
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
Ghent University
2015-2024
Mekelle University
2004-2024
Ghent University Hospital
2008-2023
Université de Montpellier
2020
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2020
Institut de Recherche pour le Développement
2020
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020
Centre National de la Recherche Scientifique
2020
UMR Botanique et Modélisation de l’Architecture des Plantes et des végétations
2020
Janssen (Belgium)
2015
In the drought-prone Upper Blue Nile River (UBNR) basin of Ethiopia, soil erosion by water results in significant consequences that also affect downstream countries. However, there have been limited comprehensive studies this and other basins with diverse agroecologies. We analyzed variability gross loss sediment yield rates under present expected future conditions using a newly devised methodological framework. The showed generates an average rate 27.5tha-1yr-1 ca. 473Mtyr-1, which, at...
This paper reviews Ethiopia’s experience and research progress in past soil water conservation (SWC) efforts suggests possible solutions for improvement. Although indigenous SWC techniques date back to 400 BC, institutionalized activity Ethiopia became significant only after the 1970s. At least six national SWC-related programs have been initiated since 1970s their focus over time has shifted from food relief land then livelihoods. The overall current erosion rates are highly variable large...
Abstract Large, deep‐seated landslides are common features in the Flemish Ardennes (Belgium). As most of these old (>100 years) located under forest this hilly region, aerial photograph interpretation is not an appropriate landslide mapping method. This study tested potential LIDAR (Light Detection and Ranging) images for forest. Landslide inventory maps were created a 125 km 2 area by applying expert knowledge seven geomorphologists to LIDAR‐derived hillshade, slope contour line GIS...
Abstract Although obvious in the field, impact of road building on hydrology and gullying Ethiopia has rarely been analysed. This study investigates how Ethiopian Highlands affects gully erosion risk. The between Makalle Adwa highlands Tigray (northern Ethiopia), built 1993–1994, caused at most culverts other drains. While damage by runoff to itself remains limited, off‐site effects are very important. Since road, nine new gullies were created immediately downslope studied segment (6·5 km...
Abstract In Tigray (Northern Ethiopia, significant achievements were made, mainly from 1994 to 2002), on the development of agriculture through irrigation by employing seasonally harvested runoff using earth dams. However, most implemented schemes are not serving intended purpose well because constraints associated with both pre‐ and post‐implementation. Sediment deposition in reservoirs is a serious off‐site consequence soil erosion region. extent problem studied. Moreover, there no...
Abstract Impact studies of catchment management in the developing world rarely include detailed hydrological components. Here, changes response a 200‐ha north Ethiopia are investigated. The included various soil and water conservation measures such as construction dry masonry stone bunds check dams, abandonment post‐harvest grazing, establishment woody vegetation. Measurements at outlet indicated runoff depth 5 mm or coefficient (RC) 1·6% rainy season 2006. Combined with measurements plot...
Abstract Use of stone bunds to enhance soil and water conservation was first introduced Tigray, northern Ethiopia in 1981. This study designed examine the factors that control effectiveness installed on cropland. Qualitative quantitative assessments loss sediment accumulation were conducted 202 plots at 12 representative sites Dogu'a Tembien district. Mean annual from foot due tillage erosion estimated 39kgm−1yr−1 or 20tha−1yr−1, a rate which decreased with increasing age bund. The assessed...
Land degradation and recurrent drought are the major threats to rain-fed agriculture in semi-arid Ethiopian highlands. Water harvesting has become a priority Tigray region since 1990. However, success of water reservoirs is limited due reduced inflow. The aim this study was investigate effects typical land-use types, slope gradients, different soil conservation (SWC) structures on runoff loss at runoff-plot scale. Six measuring sites, corresponding three were established for cropland...
Abstract This paper analyses the factors that control rates and extent of soil erosion processes in 199 ha May Zegzeg catchment near Hagere Selam Tigray Highlands (Northern Ethiopia). catchment, characterized by high elevations (2100–2650 m a.s.l.) a subhorizontal structural relief, is typical for Northern Ethiopian Highlands. Soil loss due to various processes, as well sediment yield deposition within (essentially induced recent conservation activities), were measured using range...
ABSTRACT Most regional‐scale soil erosion models are spatially lumped and hence have limited application to practical problems such as the evaluation of spatial variability sediment delivery within a catchment. Therefore, objectives this study were follows: (i) calibrate assess performance distributed WATEM/SEDEM model in predicting absolute yield specific from 12 catchments Tigray (Ethiopia) by using two different transport capacity equations (original modified) (ii) for identification...