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Résultats de la recherche (220 résultats)

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Japan ; Landslide ; Precipitation ; Regression analysis ; Slope ; Slope dynamics ; Soil properties ; Threshold
  • the physical properties of the hillslope materials relevant to slope stability analysis, and to understand the responses of subsurface pressure heads to rainfall. A multiple regression analysis was used to determine the critical rainfall level for landsliding
  • 2007
  • Biogeography ; Channel geometry ; Ecosystem ; Forest ; Michigan ; Multivariate analysis ; Regression analysis ; Riparian vegetation ; Stream ; United States of America ; Vegetation dynamics
  • the south shore of Lake Superior. The analyses suggest differences in relationships between geomorphic factors and LW and LWJ structure. Channel width, distance from headwaters, gradient and sinuosity were identified by regression tree analysis as the most
  • 2007
  • The AA. investigate the dynamics and the rheological properties of a 90 000 m3 debris-flow event triggered by a rapid regression landslide with high water content which occurred on November 2002 along the Rossiga valley, Valsassina, Central Italian
  • 2007
  • DWEPP : a dynamic soil erosion model based on WEPP source terms
  • The aim of this study was to develop a dynamic version of the Water Erosion Prediction Project (WEPP) model based on kinematic wave routing of runoff and the WEPP source terms equation for erosion coded with a fully dynamic solution. Sediment yield
  • dynamics were plotted and compared with experimental results for plots and hillslope. Effects of cover and canopy on the predicted sediment yields were well represented by the model. DWEPP provides a new tool for assessing erosion rates and dynamics.
  • 2007
  • Spatial dynamics in the container load centers of the Le Havre-Hambourg range
  • Commercial harbour ; Container ; Economic geography ; Economic model ; Europe ; Freight ; Harbour ; Logistics ; Northwestern Europe ; Spatial dynamics
  • This paper discusses the spatial dynamics in the Le Havre-Hamburg range. By applying existing spatial models on port system development, changes in the range's port hierarchy are discussed. It is demonstrated that the existing port hierarchy
  • 2007
  • Impacts of the large amount of sand mining on riverbed morphology and tidal dynamics in lower reaches and delta of the Dongjiang River
  • Channel geometry ; China ; Delta ; Flood ; Fluvial dynamics ; Guangdong ; Human impact ; Stream ; Tide ; Years 1980-89 ; Years 1990-99
  • Since the 1980s, with the economic booming in China, there has been great demand of sand for the infrastructure. The sand dredging and its impacts on riverbed evolution and tidal dynamic change in the lower reaches and delta of the Dongjiang River
  • 2007
  • Dynamic changes in savanna and seasonally dry vegetation through time
  • Africa ; Amazon Basin ; Biogeography ; Comparative study ; Fauna ; Human impact ; Impact ; Savanna ; South America ; Vegetation dynamics
  • 2007
  • Alluvial cone ; Cold area ; Debris flow ; Holocene ; Iceland ; Mountain ; Slope dynamics ; Tephrochronology
  • The aims of this study are to characterize the spatial and temporal colluvial fan dynamics in northern Iceland for present-day active slope dynamics, and to examine fan development during the Upper Holocene period.
  • 2007
  • Impacts of river restoration on small-wood dynamics in a low-gradient headwater stream
  • Channel geometry ; England ; Floodplain ; Fluvial dynamics ; Riparian vegetation ; Stream ; United Kingdom ; Vegetation
  • 2007
  • Dynamic externalities, local industrial structure and economic development : panel data evidence for Morocco
  • Dynamic model ; Economic development ; Employment ; Impact ; Industrial structure ; Model ; Morocco ; Regional development ; Specialization ; Value added
  • 2007
  • A wind tunnel simulation of the dynamic processes involved in sand dune formation on the western coast of Hainan Island
  • China ; Coastal dynamics ; Coastal environment ; Dune ; Island ; Sand ; Simulation ; Spatial distribution
  • the development pattern. The presence or absence of forest shelter belts also influences deposition and dune development patterns and transformation of dune forms. Coastal dunes and inland desert dunes experience similar dynamic processes, but the former have more
  • 2007
  • Ecosystem expansion and contraction dynamics along a large Alpine alluvial corridor (Tagliamento River, Northeast Italy)
  • The AA. quantify large-scale expansion and contraction dynamics of surface waters along a braided section of the last remaining semi-natural large Alpine gravel-bed river (Tagliamento River). To assess surface-subsurface exchange patterns
  • they measured discharge and vertical hydraulic gradients at multiple locations along the corridor. The results emphasize that even small changes in flow can cause major increases or decreases of ecosystem size, thereby creating a highly dynamic and harsh
  • 2007
  • Seasonal dynamics of soil-water pressure in a cracking clay soil
  • 2007
  • Income and employment dynamics in Europe
  • 2007
  • Tiebout dynamics : neighborhood response to a central-city / suburban house-price differential
  • 2007
  • Invasive pathogens at alpine treeline : consequences for treeline dynamics
  • Biogenic process ; Climatic change ; Ecosystem ; Forest ; Mountain ; North America ; Pine ; Rocky Mountains ; Tree line ; Vegetation degradation ; Vegetation dynamics
  • 2007
  • Effect of land-use on soil water dynamic in dehesas of Central-Western Spain
  • Cultivated land ; Ecosystem ; Impact ; Land use ; Pastureland ; Soil water ; Spain ; System dynamics ; Tree
  • 2007
  • Human impact and slope dynamics evolutionary trends in the monoclinal relief of Adriatic area of central Italy
  • Anthropogenic erosion ; Badland ; Central Italy ; Cuesta ; Earth surface processes ; Holocene ; Italy ; Landslide ; Slope dynamics ; Soil erosion
  • 2007
  • Post-fire hydrological and erosional responses of a Mediterranean landscape : seven years of catchment-scale dynamics
  • Alicante ; Fire ; Mediterranean climate ; Rainfall and discharge relationship ; Runoff ; Sedimentation ; Slope dynamics ; Spain ; Watershed
  • 2007
  • LandScan USA : a high-resolution geospatial and temporal modeling approach for population distribution and dynamics
  • The geography of global population dynamics. Theme issue
  • 2007