Action anthropique ; Dynamique de la végétation ; Géographie physique ; Pastoral ; Succession biocénotique ; Végétation
Après une introduction sur la nature de la végétation, l'ouvrage traite de la variabilité de la végétation dans le temps: processus des changements, fluctuations, régénération et changements cycliques, successions primaires, successions secondaires
Biomasse ; Cours d'eau ; Dynamique fluviale ; Ecosystème ; Géochimie ; Macrophyte ; Nutriment ; Transport sédimentaire ; Végétation
This paper presents a review of research on macrophyte-mediated processes within streams and calls for a greater appreciation of these processes in future hydro-geomorphological research in streams with abundant vegetation. The influence
of macrophyte growth on instream nutrient dynamics is discussed as an illustration of the potential for macrophytes to affect fluvial system functioning.
Cours d'eau ; Dynamique de la végétation ; Erosion des berges ; Géométrie hydraulique ; Habitat ; Réhabilitation ; Végétation ; Végétation ripicole
Various aspects of both allogenic and autogenic processes in riparian vegetationdynamics are discussed here; in particular how plants may promote bank stability and sedimentation, and river island development. Riparian restoration often fails
Spatial modelling of vegetation change in dynamic landscapes : a review of methods and applications
Bibliography ; Forest ; Geographical information system ; Landscape ; Landscape ecology ; Model ; Simulation ; Spatial analysis ; Vegetation ; Vegetationdynamics ; Years 1990-99 ; Years 2000-2009
Analyse spatiale ; Années 1990 ; Années 2000 ; Bibliographie ; Dynamique de la végétation ; Ecologie du paysage ; Forêt ; Modèle ; Paysage ; Simulation ; Système d'information géographique ; Végétation
This review considers the development and application of landscape-level spatially explicit ecological models, with an emphasis on vegetationdynamics and disturbance, and the management applications of these models. Mechanistic and stochastic
Channel metamorphosis, floodplain disturbance, and vegetation development: Ain River, France
Ain ; Biodiversity ; Flood ; Floodplain ; Fluvial dynamics ; Fluvial hydrology ; France ; Phytosociology ; Rhône-Alpes ; River bed ; Stream ; Vegetation ; Vegetationdynamics
Ain ; Biodiversité ; Cours d'eau ; Crue ; Dynamique de la végétation ; Dynamique fluviale ; France ; Hydrologie fluviale ; Lit fluvial ; Phytosociologie ; Plaine d'inondation ; Rhône-Alpes ; Végétation
This paper describes and explains channel metamorphosis of the Ain River in east-central France and the effects of this metamorphosis on floodplain disturbance and vegetation development: relationship between channel dynamics and hydrology
Biogéographie ; Cours d'eau ; Crue ; Dynamique de la végétation ; Ecosystème ; Forêt ; Kenya ; Plaine d'inondation ; Protection de la nature ; Récit de voyage
Vegetationdynamics in grasslands, heathlands and mediterranean ligneous formations
Domaine méditerranéen ; Dynamique de la végétation ; Formation arbustive ; Formation herbacée ; Formation ligneuse ; Géographie physique ; Lande ; Modèle ; Méthodologie ; Succession biocénotique ; Synécologie descriptive ; Végétation ; Zone
Ce volume contient la plupart des contributions présentées au Symposium sur la dynamique de la végétation dans les formations herbacées, les landes et les formations méditerranéennes ligneuses, qui s'est tenu à Montpellier (CEPE Louis Emberger).
Geographical Information Systems and dynamic models
Climatic variation ; Concept ; Fluvial hydrology ; Geographical information system ; Heathland ; Netherlands (The) ; Vegetationdynamics ; Water balance ; Watershed
Bassin-versant ; Bilan hydrologique ; Concept ; Dynamique de la végétation ; Hydrologie fluviale ; Lande ; Pays-Bas ; Système d'information géographique ; Variation climatique
This research deals with approaches and concepts for a fruitful integration of dynamic models and GIS. It gives an overview of the current state of GIS and the characteristics of dynamic models. It is focussed on the concepts behind an integration
of dynamic models and GIS. The different case-studies in this work serve as examples of the techniques and concepts described earlier. These case-studies refer to water balance situations of large river basins with respect to their sensitivity to climatic
Post-glacial dynamics of vegetation and tree-lines in the far north of Fennoscandia
Cold area ; Ecotone ; Finland ; Forest ; Lacustrine sediment ; Norway ; Palaeo-ecology ; Palynology ; Pollen diagram ; Postglacial ; Stratigraphy ; Tree line ; Tundra ; Vegetation ; Vegetationdynamics
Diagramme pollinique ; Dynamique de la végétation ; Ecotone ; Finlande ; Forêt ; Limite supérieure de la forêt ; Norvège ; Palynologie ; Paléo-écologie ; Postglaciaire ; Stratigraphie ; Sédiment lacustre ; Toundra ; Végétation ; Zone froide
Skaidejavri and Rautuselkä in northern Finland, was studied to reveal the post-glacial dynamics of the vegetation in this ecotone. These lakes were selected to represent the different vegetation zones within the area and the altitudinal changes
Biodiversité ; Biogéographie ; Biote ; Dynamique de la végétation ; Espèce végétale ; Flore ; Géologie ; Habitat ; Ile ; Tonga ; Végétation
Biodiversidad ; Biogeografía ; Biota ; Dinámica de la vegetación ; Especie vegetal ; Flora ; Geología ; Hábitat ; Isla ; Tonga ; Vegetación
This article analyses species origins, dispersal, and island vegetationdynamics of the Kingdom of Tonga in the South Pacific. It demonstrates that species–area relationships are significant for all plant species and for ancient and modern
archipelagos of Samoa and Fiji. It concludes that plant dispersal spectra vary significantly according to island topography, geology,vegetation types, and plant species origins.
This study first reviews the progress of vegetation models from static-equilibrium to transient-dynamic and to current coupled multi-objective vegetation models. Then, the 4 main sources leading to the uncertainty of model results are described
development of coupled dynamicvegetation models. Using a literature synthesis, this study provides researchers with a general guidance on applying vegetation models for simulating the effects of climatic variations on terrestrial vegetation.
, including 1) factors related to vegetation models (their structure, assumption and parameterization), 2) the data used to run a model, 3) the approaches used to validate model results, and 4) the spatiotemporal scaling issues involved in vegetation modelling
Late-Quaternary vegetationaldynamics and community stability reconsidered
Amérique du Nord ; Dynamique de la végétation ; Géographie physique ; Paléobiogéographie ; Quaternaire ; Quaternaire supérieur ; Végétation
interglacial vegetation developed there after about 9000 yr B. P. Late-Quaternary vegetation has been in dynamic equilibrium, with a relatively constant flora, south of 33N on upland interfluves along the northern Gulf Coastal Plain, peninsular Florida
Defining the spatial and temporal limits of vegetational processes such as migration and invasion of established communities is a prerequisite to evaluating the degree of stability in plant communities through the late Quaternary. The interpretation
of changes in boundaries of major vegetation types over the past 20,000 yr offers a complementary view to that provided by migration maps for particular plant taxa. North of approximately 43N in eastern North America, continual vegetational disequilibrium has
resulted from climatic change, soil development, and species migrations during postglacial times. Between 33 and 39N, stable full-glacial vegetation was replaced by a relatively unstable vegetation during late-glacial climatic amelioration| stable
The impact of vegetation changes on evaporation and runoff
Colorado ; Evaporation ; Impact ; Land use ; Methodology ; Model ; Rill wash ; Switzerland ; United States of America ; Vegetation ; Vegetationdynamics ; Watershed
Bassin-versant ; Colorado ; Dynamique de la végétation ; Emmental ; Etats-Unis ; Evaporation ; Impact ; Modèle ; Méthodologie ; Ruissellement ; Suisse ; Utilisation du sol ; Végétation
Research context and methodology are considered for the determination of the impact of vegetation changes on evaporation and runoff. Most of the important advances in understanding of the problem since 1948, have resulted from combining
Interactions between river flows and colonizing vegetation on a braided river: exploring spatial and temporal dynamics in riparian vegetation cover using satellite data
ASTER ; Années 2004-2009 ; Chenal anastomosé ; Cours d'eau ; Crue ; Dynamique de la végétation ; Friuli-Venezia Giulia ; Image satellite ; Indice de végétation ; Italie ; LiDAR ; Régime hydrique ; Tagliamento ; Traitement des données ; Télédétection
; Végétation ripicole
River, Italy. The study period (2004-2009) of increasing flow disturbance allows the exploration of vegetationdynamics within the river's active corridor under changing flow conditions. The analysis demonstrates the utility of ASTER data
for investigating vegetationdynamics along large fluvial corridors and reveals both spatial and temporal variations in the expansion, coalescence, and erosion of vegetated patches within the study reach. It is illustrated that the rate of growth of riparian trees
is crucial to their ability to contribute actively to river corridor dynamics.
Vegetationdynamics during the late Pleistocene in the Barreirinhas region, Maranhão State, northeastern Brazil, based on carbon isotopes in soil organic matter
Analyse isotopique ; Brésil ; Carbone ; Charbon de bois ; Dynamique de la végétation ; Maranhâo ; Matière organique ; Paléobiogéographie ; Pléistocène ; Propriétés du sol ; Quaternaire ; Sol
km of the transect. Soil profiles in this transect were sampled for δ13 C analysis, as well as buried charcoal fragments were used for 14 C dating. The vegetationdynamic inferred in this study for northeastern Brazil is in agreement with the results
A vegetation transect of 78 km was studied among 4 vegetation types : Restinga (coastal vegetation), Cerrado (woody savanna), Cerradão (dense woody savanna), and Forest, as well as three forested sites around Lagoa do Caçó, located approximately 10