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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (14 résultats)

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Badland morphology and evolution: interpretation using a simulation model
  • Badland ; Bassin-versant ; Erosion des sols ; Etats-Unis ; Géomorphométrie ; Modèle ; Quaternaire ; Simulation ; Splash ; Utah ; Vitesse d'érosion ; Wisconsinien
  • Badland ; Erosion rate ; Geomorphometry ; Model ; Quaternary ; Simulation ; Soil erosion ; Splash ; United States of America ; Utah ; Watershed ; Wisconsinan
  • A drainage basin simulation model is used to interpret the morphometry and historical evolution of Mancos Shale badlands in Utah. Field relationships and simulation modelling indicate that the badlands have resulted from rapid downcutting
  • of the master drainage below an Early Wisconsin terrace to the present river level, followed by base level stability. As a result, Early Wisconsin alluvial surfaces on the shale have been dissected up to 62m into steep badlands, and a Holocene alluvial surface
  • is gradually replacing the badland slopes which are eroding by parallel retreat.
  • 1997
  • Badland erosion processes and their interactions with vegetation : a case study from Pisticci, Basilicata, Southern Italy
  • Badland ; Basilicata ; Domaine aride ; Erosion des sols ; Italie ; Versant ; Végétation
  • Arid area ; Badland ; Basilicata ; Italy ; Slope ; Soil erosion ; Vegetation
  • 1997
  • Geomorphic features of a badland (biancane) area (Central Italy) : characterisation, distribution and quantitative spatial analysis
  • Analyse spatiale ; Badland ; Dynamique de versant ; Italie ; Italie centrale ; Mouvement de masse ; Ruissellement ; Toscana ; Versant
  • Badland ; Central Italy ; Italy ; Mass movement ; Rill wash ; Slope ; Slope dynamics ; Spatial analysis ; Toscana
  • 1997
  • Influences of micro-relief patterns and plant cover on runoff related processes in badlands from Tabernas (SE Spain)
  • Almería ; Badland ; Bilan sédimentaire ; Couverture végétale ; Domaine aride ; Erosion des sols ; Espagne ; Infiltration ; Microrelief ; Propriétés du sol ; Ruissellement ; Simulation de pluie ; Versant
  • Almería ; Arid area ; Badland ; Infiltration ; Microrelief ; Plant cover ; Rainfall simulation ; Rill wash ; Sediment budget ; Slope ; Soil erosion ; Soil properties ; Spain
  • The AA. try to establish the influence of both major micro-relief patterns and soil thickness on runoff related processes occuring at hillslope scale within a few hectares catchment in Tabernas badlands. Sixteen representative surface morphologies
  • 1997
  • Badland ; Concept ; Ecoulement superficiel ; Erosion hydrique ; Modèle ; Orage ; Pente de versant ; Ravinement ; Ruissellement ; Réseau de drainage ; Splash ; Taxonomie ; Versant
  • Badland ; Concept ; Drainage network ; Gully erosion ; Model ; Overland flow ; Rainstorm ; Rill wash ; Slope ; Slope gradient ; Splash ; Taxonomy ; Water erosion
  • This article reviews previous investigations into gully and badland research and discusses processes and definitions in the context of existing research in southeast Spain. The theory of badland development is summarized and definitions are proposed
  • and frequency distribution of storm events. Finally, modelling of badland landscapes is discussed.
  • 1997
  • Wind erosion of Mancos Shale badland ridges by sudden drops in pressure
  • Badland ; Domaine aride ; Erosion éolienne ; Etats-Unis ; Micromorphologie ; Pression atmosphérique ; Propriétés du sol ; Sol ; Utah ; Vent
  • Arid area ; Atmospheric pressure ; Badland ; Micromorphology ; Soil ; Soil properties ; United States of America ; Utah ; Wind ; Wind erosion
  • One process of erosion of Mancos Shale badlands near Hanksville, Utah, appears to be caused by nearly instantaneous drops in air pressure accompanying gusts of wind. A series of sharp-crested bedrock ridges trend nearly perpendicular to the strong
  • 1997
  • Erosion rates in badland areas recorded by collectors, erosionpins and profilometer techniques (Ebro Basin, NE-Spain)
  • Badland ; Bilan sédimentaire ; Domaine semi-aride ; Erosion des sols ; Espagne ; Huesca ; Précipitation ; Ruissellement ; Variabilité saisonnière ; Versant ; Vitesse d'érosion
  • Badland ; Erosion rate ; Huesca ; Precipitation ; Rill wash ; Seasonal variability ; Sediment budget ; Semi-arid area ; Slope ; Soil erosion ; Spain
  • The aim of this work is to understand the cause (rainfall amount and intensity) and the effect (runoff and sediment yield) of natural events at plots with different topography, located in badland areas, 2 km northeast of Lanaja (Huesca), and compare
  • 1997
  • The influence of slope angle on sediment, water and seed losses on badland landscapes
  • Alicante ; Badland ; Erosion des sols ; Espagne ; Pente de versant ; Pédiment ; Ravinement ; Ruissellement ; Simulation de pluie ; Versant ; Vitesse d'érosion
  • Alicante ; Badland ; Erosion rate ; Gully erosion ; Pediment ; Rainfall simulation ; Rill wash ; Slope ; Slope gradient ; Soil erosion ; Spain
  • By means of simulated rainfall the influence of the slope angle on the soil, water and seed erosion has been studied on badland surfaces. Slope angle has a clear influence on runoff initiation, with cracks and crusts as the main factors controlling
  • 1997
  • Alicante ; Badland ; Bilan sédimentaire ; Domaine méditerranéen ; Dynamique de la végétation ; Ecosystème ; Erosion des sols ; Erosion hydrique ; Espagne ; Expérimentation ; Graine ; Jachère ; Précipitation ; Ravinement ; Ruissellement ; Valencia
  • Alicante ; Badland ; Ecosystem ; Experimentation ; Fallow land ; Gully erosion ; Mediterranean area ; Precipitation ; Rill wash ; Sediment budget ; Soil erosion ; Spain ; Valencia ; Vegetation dynamics ; Water erosion
  • The aim of this study is to investigate experimentally the susceptibility of seeds to be removed by water erosion and the influence of seed size and shape on it. Rainfall simulation experiments were conducted from an abandoned field and a badland
  • 1997
  • Badland ; Domaine aride ; Dynamique de versant ; Etats-Unis ; Mouvement de masse ; Orage ; Pente de versant ; Précipitation ; Reptation ; Utah ; Versant
  • Arid area ; Badland ; Creep ; Mass movement ; Precipitation ; Rainstorm ; Slope ; Slope dynamics ; Slope gradient ; United States of America ; Utah
  • This study was designed to quantify rates of mass movement of the surficial material on the Mancos Shale badland, over a 30-year period, and determine what effects slope position, angle, and aspect had on the rates of mass movement. About two-thirds
  • 1997
  • Argile minéral ; Badland ; Drainage ; Erosion des sols ; Erosion hydrique ; Infiltration ; Italie ; Microrelief ; Propriétés du sol ; Ravinement ; Ruissellement ; Réseau de drainage ; Toscana
  • Badland ; Clay mineral ; Drainage ; Drainage network ; Gully erosion ; Infiltration ; Italy ; Microrelief ; Rill wash ; Soil erosion ; Soil properties ; Toscana ; Water erosion
  • Biancane badlands consisting of small domes dissected by rills and micropipes, with rough disordered microrelief, can be found along the Apennines in Italy. This study was undertaken in a residual area of biancane in southeast Tuscany to identify
  • 1997
  • Quantitative study of piping processes in badland areas of the Ebro Basin, NE Spain
  • Argile minéral ; Badland ; Bassin-versant ; Domaine aride ; Domaine semi-aride ; Ebro ; Erosion des sols ; Erosion hydrique ; Espagne ; Granulométrie ; Infiltration ; Microrelief ; Modèle ; Propriétés du sol ; Statistique ; Versant
  • Arid area ; Badland ; Clay mineral ; Ebro ; Grain size distribution ; Infiltration ; Microrelief ; Model ; Semi-arid area ; Slope ; Soil erosion ; Soil properties ; Spain ; Statistics ; Water erosion ; Watershed
  • In the Ebro Basin, piping is an ubiquitous erosion process in badland areas, occuring in 2 main situations : on slopes of exposed Tertiary clays and in recently incised silty-clay Holocene valley-fill sediments. The quantitative importance
  • 1997
  • Aménagement hydraulique ; Badland ; Bassin-versant ; Crue ; Domaine méditerranéen ; Erosion des sols ; Erosion hydrique ; Europe ; Europe du Sud ; Inondation ; Mouvement de masse ; Pluie torrentielle ; Ravinement ; Utilisation du sol
  • Badland ; Europe ; Flood ; Gully erosion ; Heavy rain ; Hydraulic works ; Inundation ; Land use ; Mass movement ; Mediterranean area ; Soil erosion ; Southern Europe ; Water erosion ; Watershed
  • 1997
  • Badland ; Bassin-versant ; Domaine aride ; Domaine semi-aride ; Drainage ; Erosion des sols ; Erosion hydrique ; Géomorphologie appliquée ; Mouvement de masse ; Réseau de drainage ; Sol cultivé
  • Applied geomorphology ; Arid area ; Badland ; Cultivated land ; Drainage ; Drainage network ; Mass movement ; Semi-arid area ; Soil erosion ; Water erosion ; Watershed
  • 1997