GIS-based simulation of erosion and deposition patterns in an agricultural landscape: a comparison of model results with soil map information
Agropédologie ; Belgique ; Erosion des sols ; Modèle ; Simulation ; Système d'information géographique ; Topographie ; Transport sédimentaire ; Vlaanderen
Agropedology ; Belgium ; Flanders ; Geographical information system ; Model ; Sediment transport ; Simulation ; Soil erosion ; Topography
This paper presents a relatively simple, two-dimensional hillslope erosion-deposition model: the model differs from most geomorphological models in that it does not assume that erosion by surface wash is always transport-limited. As a first test
, the model is applied to an agricultural catchment in Central Belgium. Here, patterns of past erosion and deposition can be deduced from information contained in the Belgian Soil Map so that a qualitative validation of the model results is possible.
The De Ploey erosional susceptibility model for catchments, Es
Bassin-versant ; Erosion des sols ; Modèle ; Mouvement de masse ; Ravinement ; Ruissellement
Gully erosion ; Mass movement ; Model ; Rill wash ; Soil erosion ; Watershed
This article is based on an unpublished manuscript by the late Prof. Dr. Jan De Ploey. It focusses on the erosional susceptibility of catchments in terms of total energy input by the meteorological factors water and wind (Es-model). The form
and the universal character of the basic expression of the erosional susceptibility are explained. Applications of the model are illustrated for different processes such as landsliding and debris flows, gullying, creep, and rill-interrill combinations.
Concept ; Erosion des sols ; Géomorphologie appliquée ; Modèle ; Pays en développement ; Prévision ; Ruissellement
Applied geomorphology ; Concept ; Developing countries ; Forecast ; Model ; Rill wash ; Soil erosion
and their impact in a timely and applicable way. Descrpitive and predictive models hold scope for extending geomorphological information beyond empirical confines. Examples throughout the paper are drawn from projects in South Asia, South America and southern
Beja ; Experimentation ; Forecast ; Mediterranean area ; Model ; Portugal ; Precipitation ; Raindrop erosion ; Soil erosion
This paper presents field measurements of raindrop size distributions and relations between rainfall parameters that can be used in models for predicting soil erosion.
Nonlinear responses of soil erosion to climate change: a modelling study on the UK South Downs
Action anthropique ; Changement global ; Couverture végétale ; England ; Erosion des sols ; Modèle ; Précipitation ; Royaume-Uni ; Sol ; Utilisation du sol ; Variabilité climatique
Climatic variability ; England ; Global change ; Human impact ; Land use ; Model ; Plant cover ; Precipitation ; Soil ; Soil erosion ; United Kingdom
by means of a comparison of sites representing typical soil forms, slope gradients, and land-use types. Simple-to-measure site characteristics were to be examined with regard to their use in an empirical predictive model and their suitability for describing