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Portail d'information géographique

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  • Aerial photography ; Dendrology ; Florida ; Forest ; Pine ; Plant canopy ; Plant colonization ; Twentieth Century ; United States of America ; Vegetation dynamics ; Wind
  • infilling as these individuals reached reproductive maturity. Analyses of hemispherical canopy photographs and regeneration patterns illustrate the ability of sand pine to establish under a variety of light conditions. Radial growth analysis of incremental
  • Agricultural retreat ; Cultivated surface ; Economic impact ; Forest ; Land use ; Mediterranean area ; Middle mountain ; Mountain ; Plant canopy ; Spain
  • Agricultural hydrology ; Desertification ; Farm ; Human impact ; Morocco ; Plant canopy ; Population growth ; Rural change ; Soil degradation ; Soil erosion ; Water resources
  • Biomass ; Ecosystem ; Humid environment ; Mangrove ; Nature conservation ; New Zealand ; North Island ; Plant canopy ; Scrub ; Vegetation degradation
  • Ecosystem ; Forest ; Hydrochemistry ; Plant canopy ; Spatial variation ; Water cycle
  • AVHRR ; Bibliography ; Biogeography ; Coral reef ; Ecology ; Forecast ; Forest ; LANDSAT ; Marine biology ; Model ; NOAA ; Plant canopy ; Reef ; Remote sensing ; SPOT ; Scale ; Spatial analysis
  • Arctic Region ; Cold area ; Gley ; Grain size distribution ; Microrelief ; Patterned ground ; Plant canopy ; Soil ; Soil properties ; Solifluction ; Spitsbergen ; Svalbard
  • morphological, granulometric and chemical properties and plant covers.
  • Biogenic process ; Biogeochemistry ; Biogeography ; Concept ; Ecosystem ; Nineteenth Century ; Pedogenesis ; Plant canopy ; Soil ; Twentieth Century
  • The AA. examine some historical turning points that led soil scientists to embrace a plant-linked, agronomic-inspired, environmental factors approach to explain soil formation and to turn away from a process-oriented and animal-linked approach
  • Does plant cover structure in rural areas modify climate change effects?
  • Atmospheric circulation ; Climatic variation ; Evapotranspiration ; Global change ; Heat flow ; Land use ; Plant canopy ; Poland ; Rural area
  • This paper shows that : modification of the plant cover in an agricultural landscape influences the vertical flux of sensible heat; the changes in land-use pattern influence the vertical fluxes of sensible and latent heat at the scale
  • Photographic evidence of rate of development of plant cover on the emergent island Anak Krakatau from 1971 to 1991 and implications for the effect of volcanism
  • Biogeography ; Indonesia ; Island ; Photointerpretation ; Plant canopy ; Population dynamics ; Vegetation ; Volcanic eruption ; Volcanism
  • Photographs of the vegetated North and East Forelands of Anak Krakatau, which emerged from the sea in 1930 and was totally devastated by volcanic activity in 1952/53, provide some evidence of rate of change of plant cover from grassland to woodland
  • Control of atmospheric particles on diffuse radiation and terrestrial plant productivity : A review
  • Aerosol ; Atmosphere ; Carbon cycle ; Climatic change ; Cloud ; Impact ; Model ; Photosynthesis ; Plant canopy ; Radiation ; Solar radiation ; Vegetation
  • Here the AA. review the role of clouds and aerosols in partitioning solar radiation and their interactions with carbon processes of terrestrial plants. They also focus their review on vegetation characteristics that control the impact of radiation
  • Plants as river system engineers
  • role of vegetation in determining river planform. At the same time, modellers have incorporated factors such as moisture-dependent plant growth, canopy and root architecture and their influence on flow resistance and sediment/bank reinforcement
  • years of the twenty-first century, complementary field, flume and theoretical/modelling investigations have contributed to major advances in understanding the influence of plants on fluvial systems. Flume experiments have demonstrated the fundamental
  • Monitoring plant development after El Niño 1997/98 in Northwestern Peru
  • Arid area ; Climate oscillation ; Ecosystem ; Human impact ; Marine hydrology ; Peru ; Plant canopy ; Plant species ; Precipitation ; Rain anomaly ; Semi-arid area ; Surface temperature ; Vegetation dynamics
  • Arid area ; China ; Henan ; Hydrology ; Infiltration ; Model ; Plant canopy ; Precipitation ; Simulation ; Soil properties ; Watershed
  • is also implemented. The canopy interception and soil infiltration processes were incorporated into the original BTOPMC to model event-based runoff simulation in large arid regions. One designed infiltration model is validated for event hydrological
  • Estimation of canopy parameters for inhomogeneous vegetation canopies from reflectance data. II. Estimation of leaf area index and percentage of ground cover for row canopies
  • Diversity of understory plant species in a disturbed subalpine forest in the Colorado Rockies was examined to explore the hypothesis that intermediate levels of disturbance generate and maintain high levels of diversity. The AA. use a natural
  • experiment, where a severe but patchy windstorm damaged the canopy of a subalpine forest in the Colorado Front Range in 1974. The results suggest that intermediate levels of disturbance severity may offer more microhabitats, at least temporarily, for a wider
  • Biotope ; Environment ; Indicator ; Landscape ; Plant canopy ; Research technique ; Resource management ; Sustainable development
  • Biogenic action;Biogenic process ; Biogeography ; Degradation ; Environment ; Fauna ; Ireland ; National park ; Plant canopy ; Soil erosion ; Vegetation
  • Altitudinal zonation ; Clay mineral ; Ecosystem ; Lithology ; Loess ; Mountain ; Pedogenesis ; Plant canopy ; Slope gradient ; Soil properties ; United States of America ; Utah