Effects of water quality on infiltration, runoff and interril erosion processes during simulated rainfall
Argile minéral ; Belgique ; Erosion des sols ; Erosion hydrique ; Etude comparée ; Infiltration ; Italie ; Qualité de l'eau ; Ruissellement ; Salinité ; Simulation de pluie ; Sol ; Toscana
Belgium ; Clay mineral ; Comparative study ; Infiltration ; Italy ; Rainfall simulation ; Rill wash ; Salinity ; Soil ; Soil erosion ; Toscana ; Water erosion ; Water quality
This paper discusses the effects of water quality on the hydrological and erosion response of non-saline, non-sodic soils during simulated rain experiments. Two soils, a well-aggregated clay-rich soil developed on marine silty clay deposits
and a soil developed on silt loam, were selected and subjected to a series of simulated rainstorms using demineralized water and tap water. The hydrological response (infiltration, runoff), the physical degradation (soil surface roughness change and top-soil
Belgique ; Ecoulement ; Encroûtement ; Erodabilité ; Erosion des sols ; Humidité du sol ; Loess ; Propriétés du sol ; Précipitation ; Ruissellement ; Simulation de pluie
Flume experiments simulating concentrated runoff were carried out on remolded silt loam samples to measure the effect of rainfall-induced soil consolidation and soil surface sealing on soil erosion by concentrated flow for loess-derived soils
and to establish a relationship between soil erodibility and soil bulk density. Soil consolidation and sealing were simulated by successive simulated rainfall events alternated by periods of drying. Soil detachment measurements were repeated for 4 different soil
Andes ; Couverture végétale ; Dégradation ; Ecosystème ; Ecoulement ; Equateur ; Montagne ; Simulation de pluie ; Utilisation du sol
Andes ; Degradation ; Ecosystem ; Ecuador ; Land use ; Mountain ; Plant cover ; Rainfall simulation ; Runoff
Résultats des mécanismes d'écoulement des pluies dans les Andes équatoriennes méridionales à l'aide de pluie simulée pour quantifier la réponse hydrologique à une forte pluie sur des parcelles de 55 sur 1 m2. Analyse des propriétés physiques et
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
erosion and show that the model can simulate realistic soil redistribution patterns.
This paper investigates the effects of rock fragment properties on interrill soil surface roughness. Therefore, the surface roughness evolution of 13 simulated plough layers with different rock fragment content, rock fragment size and initial
The aim of this study is to better understand the role that rock fragments incorporated into the soil matrix have on concentrated flow hydraulics and erosion by concentrated flow as simulated in laboratory experiments. Slope steepness and flow
drilled grass and high density drilled grass, simulating different root densities. The best relationship fitting the data is the Hill curve, indicating that relative soil detachment rates decrease to very low values with an increase in root density or root