inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (9 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Effects of region-wide soil and water conservation in semi-arid areas : the case of northern Ethiopia
  • Arid area ; Ecosystem ; Ethiopia ; Gully erosion ; Plant canopy ; Rill wash ; Semi-arid area ; Soil conservation ; Soil erosion ; Water erosion
  • This study makes a multi-scale assessment over a time span of 30 years of environmental rehabilitation in one of the world's most degraded areas : the Tigray highlands. It study shows that in Tigray sheet and rill erosion rates have decreased
  • Holocene alluvial sediment storage in a small river catchment in the loess area of central Belgium
  • Gully erosion in mountain areas : processes, measurement, modelling and regionalization
  • representative case-study areas. The results reveal that rapid gully development in the study area is some 50 years old and is mainly caused by human-induced environmental degradation.
  • In this paper the available information on the initiation and location of (ephemeral) gullies is summarised, focusing on the relationship between the upslope drainage area and the critical slope gradient for ephemeral gully initiation. Furthermore
  • area. The topography is iteratively rejuvenated by taking into account modelled erosion and deposition rates, thereby simulating topographic development backwards in time. The model is spatially evaluated, using detailed estimates for historical soil
  • Aerial photography ; Belgium ; Comparative study ; Cultivated land ; Erodibility ; Gully erosion ; Loess ; Mediterranean area ; Model ; Portugal ; Soil erosion ; Spain ; Water erosion ; Watershed
  • Aerial photography ; Andes ; Ecuador ; Gully erosion ; Land use ; Model ; Mountain ; Semi-arid area ; Soil erosion ; Spatial analysis ; Water erosion
  • Aquifer ; Arid area ; Deforestation ; Desertification ; Environmental degradation ; Ethiopia ; Gully erosion ; Human impact ; Land use ; Soil ; Soil erosion ; Sustainable development