Solr Search · GéoProdig, portail d'information géographique

Wetland diagenesis and traces of early hominids, Olduvai Gorge, Tanzania

Archéologie ; Argile ; Géochimie ; Homme fossile ; Modèle ; Olduvai ; Paléo-environnement ; Paléo-écologie ; Qualité de l'eau ; Stratigraphie ; Tanzanie ; Utilisation du sol
Archaeology ; Clay ; Fossil man ; Geochemistry ; Land use ; Model ; Palaeo-ecology ; Palaeo-environment ; Stratigraphy ; Tanzania ; Water quality
The purpose of this study was to characterize geochemical variability in the basal LMBII deposits and thereby identify freshwater settings within the otherwise saline and alkaline Eastern Lacustrine Plain. Data on stone artifact and fossil bone
freshwater sources produced an associated focus of stone tool discard and loss.

Les paysages sous-marins de Baïkal

Baikal ; Eastern Siberia ; Ecosystem ; Fauna ; Freshwater environment ; Lake ; Limnology ; Russia

Etudes de la production hydrobiologique de l'Enissej

Aquatic ecosystem ; Asian part of Russia ; Ecosystem ; Fluvial hydrology ; Freshwater environment ; Hydrobiology ; Plankton ; Primary production ; Siberia ; Water ; Yenisey

Diverse nonmarine biota from the Whidbey Formation (Sangamonian) at Point Wilson, Washington

British Columbia ; Canada ; Etats-Unis ; Interglaciaire ; Paléo-environnement ; Paléofaune ; Paléoflore ; Quaternaire ; Stratigraphie ; Subsidence ; Taxonomie ; Tectonique ; Washington State
British Columbia ; Canada ; Interglacial ; Palaeo-environment ; Palaeobotany ; Palaeozoology ; Quaternary ; Stratigraphy ; Subsidence ; Taxonomy ; Tectonics ; United States of America ; Washington State
Previously underscribed plant and animal fossils from the Whidbey Formation represent two environments: freshwater and terrestrial environments. These taxa are compatible with interglacial climatic conditions on a coastal plain environment and imply

Holocenic proxies of sedimentary organic matter and the evolution of Lake Arari-Amazon Region

Analyse isotopique ; Brésil ; Diagramme pollinique ; Eau de mer ; Eau douce ; Holocène ; Ile ; Lac ; Milieu humide ; Niveau marin ; Palynologie ; Paléo-environnement ; Pará ; Phytoplancton ; Sédiment lacustre
Brazil ; Fresh water ; Holocene ; Humid environment ; Island ; Isotope analysis ; Lacustrine sediment ; Lake ; Palaeo-environment ; Palynology ; Pará ; Phytoplankton ; Pollen diagram ; Sea level ; Sea water
. This study identified an influence between marine and freshwater with 3 development stages of Lake Arari : presence of mangroves during the lagoon phase; then, the mangroves were replaced by herbaceous vegetation with the increase in freshwater river
discharge; finally, Lake Arari was established in association with the expansion of herbaceous vegetation and the dominance of freshwater algae.

Measure, model, optimise : understanding reconductionist concepts of value in freshwater governance

Measure, model, optimise : understanding reconductionist concepts of value in freshwater governance
Cours d'eau ; Eau douce ; Echelle ; Epistémologie ; Gestion de l'environnement ; Nouvelle-Zélande ; Qualité environnementale ; Réductionnisme

Microbial accumulation of iron and manganese in different aquatic environments: an electron optical study

Microbial accumulation of iron and manganese in different aquatic environments: an electron optical study
Biomineralization processes of iron and manganese. Modern and ancient environments
Biogeochemistry ; Freshwater environment ; Geochemistry ; Hot springs ; Iron ; Manganese ; Micro-organism ; Microstructure ; Mineralization

A case study of a freshwater pearl mussel (Margaritifera margaritifera) population in central Sweden

A case study of a freshwater pearl mussel (Margaritifera margaritifera) population in central Sweden
Biogeography ; Freshwater environment ; Habitat ; Hydraulic works ; Impact ; Mollusca ; Population dynamics ; Stream ; Sweden ; Water quality

Problem cyanobacterial blooms: explanation and simulation modelling

Algae ; Ecosystem ; Environment ; Eutrophication ; Freshwater environment ; Model ; Pollution ; Regional planning ; Water resources
Algue ; Aménagement régional ; Ecosystème ; Environnement ; Eutrophisation ; Milieu dulçaquatique ; Modèle ; Pollution ; Ressource en eau

Sedimentation rates and patterns in beaver ponds in a mountain environment

Sedimentation rates and patterns in beaver ponds in a mountain environment
Special issue. Biogeomorphology, terrestrial and freshwater systems
Biogeography ; Humid environment ; Montana ; Mountain ; Pond ; Sediment budget ; Slope ; Soil erosion ; United States of America ; Vegetation ; Water quality

Study on ecological fragility of wetlands in Sanjiang Plain

Biodiversité ; Chine ; Dégradation de l'environnement ; Ecosystème ; Ecotone ; Guangxi ; Indice ; Milieu humide ; Vulnérabilité
Biodiversity ; China ; Ecosystem ; Ecotone ; Environmental degradation ; Guangxi Zhuang ; Humid environment ; Index ; Vulnerability
As the largest inland freshwater wetlands in China, Sanjiang Plain plays an important role in environmental protection from local to global scale. Characteristics and reasons of wetland ecological fragility in Sanjiang Plain are analyzed

Diurnal evaporation from fresh and hypersaline shallow ponds in a hot, dry environment

Diurnal evaporation from fresh and hypersaline shallow ponds in a hot, dry environment
A numerical procedure is developed to evaluate the diurnal trend of evaporation from a shallow freshwater pond and a hypersaline pond, both of which are 2 m deep and encountering identical meteorological forcings. A rapidly convergent algorithm

Echelles des variations chronoclimatiques quaternaires et réponses des environnements: introduction au colloque

Echelles des variations chronoclimatiques quaternaires et réponses des environnements: introduction au colloque
Echelles des variations chronoclimatiques quaternaires et réponses des environnements
Chronostratigraphy ; Climatic variation ; Coastal environment ; Fluvial processes ; Freshwater environment ; Karst ; Lake ; Palaeo-environment ; Palaeobiogeography ; Quaternary ; Slope
Chronostratigraphie ; Fluviatile ; Karst ; Lac ; Littoral ; Milieu dulçaquatique ; Paléo-environnement ; Paléobiogéographie ; Quaternaire ; Variation climatique ; Versant

Ob izmenenii biomassy zooplanktona v ozere Bajkal

Aquatic ecosystem ; Baikal ; Biomass ; Fauna ; Freshwater environment ; Lake ; Quantitative ecology ; Russia ; Siberia ; Zooplankton

Caractéristique hydrobiologique des plans d'eau de l'Ural

Algae ; Estuary ; European part of USSR ; Fauna ; Freshwater environment ; Hydrobiology ; Lake ; Ob ; Phytoplankton ; Reservoirs ; Streams ; Ural ; Water ; Water quality

The evolution of tidal creek networks, Mary River, Northern Australia

Australia ; Coastal environment ; Coastal plain ; Drainage network ; Estuary ; Fresh water ; Sea water ; Stream ; Tide
The AA. describe the extension of tidal creek networks for 50 years. They have extended over 30 km inland across the coastal plains of the Mary River in Northern Australia, invading freshwater wetlands and destroying the associated vegetation

Moyens de développement et problèmes actuels de la limnologie contemporaine

Aquatic ecosystem ; Freshwater environment ; Lake ; Limnology

Les eaux de la plaine de la Ruzizi (Burundi). Les milieux, la flore et la végétation algale

Algae ; Biogeography ; Biotope ; Burundi ; Flora ; Freshwater environment ; Human impact ; Hydrobiology ; Phytogeography ; Plain

Stress and recovery in wetland ecosystems

Comparative study ; Ecosystem ; Eutrophication ; Human impact ; Humid environment ; Netherlands (The) ; Poland ; Pollution ; Pollution control
This thesis examines the effects of stress factors and the potential of recovery and restoration in freshwater wetlands. Impacts of changes in environmental conditions on wetland vegetation are studied by comparing wetlands in both stressed

Interaction between bacteria, nannobacteria, and mineral precipitation in hot springs of central Italy

Biogenic process ; Carbonate rock ; Croatia ; Freshwater environment ; Geochemistry ; Lake ; Microstructure ; Petrography ; Travertine

Résultats de la recherche (25347 résultats)

Affinez votre recherche