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Registros recuperados: 42
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3-D modelling of 137Cs and 90Sr transport in Dnieper-Boog Estuary IRD
Margvelashvili, N.Y.; Maderich, V.S.; Zheleznyak, M.J..
Tipo: Text Palavras-chave: ESTUAIRE; RADIOELEMENT; ISOTOPE RADIOACTIF; STRONTIUM; TRANSPORT; FLUX; DISTRIBUTION SPATIALE; MILIEU LIQUIDE; SEDIMENT; ADSORPTION; MODELISATION; CESIUM.
Ano: 2002 URL: http://www.documentation.ird.fr/hor/fdi:010032841
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A process-based model for carbon and nitrogen transfers in soil organic matter IRD
Pansu, Marc; Sallih, Z.; Bottner, P..
Tipo: Text Palavras-chave: SOL; MATIERE ORGANIQUE; CARBONE; AZOTE; FLUX; MINERALISATION; HUMIFICATION; NITRIFICATION; ISOTOPE; MODELISATION; MODELE MATHEMATIQUE; ETUDE EXPERIMENTALE; MOMOS METHODE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010025602-098
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Absence of Redox potential discontinuity in dark submarine cave sediments as evidence of oligotrophic conditions IRD
Fichez, Renaud.
Tipo: Text Palavras-chave: GROTTE; MILIEU BENTHIQUE; POTENTIEL REDOX; INDICATEUR BIOCHIMIQUE; OXYGENE; FLUX; MATIERE ORGANIQUE; CARBONE ORGANIQUE; SEDIMENTATION EN MER PROFONDE; LUMIERE; BENTHOS; FONCTIONNEMENT DE L'ECOSYSTEME.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:010019261
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Analyse de la variabilité interannuelle du flux net de CO2 échangé par la forêt de Hesse Inra
Longdoz, B.; Gross, P.; Granier, A..
Depuis 1996, un système de mesure par corrélations turbulentes permet de mesurer les flux nets de CO2, de vapeur d'eau et d'énergie à l'interface entre une hêtraie située à Hesse (France, 57) et l'atmosphère. Simultanément des mesures des principales variables météorologiques et des principales caractéristiques structurelles du couvert ont été enregistrées et permettent un suivi à long terme des conditions subies par le site-atelier de Hesse. La hêtraie de Hesse incorpore de 100 à 500 g Cm-2 an-1 selon les années, valeur en moyenne proche des estimations d'accroissement du peuplement forestier. Cette variation inter-annuelle du bilan net de carbone est très élevée par rapport à ce qui est observé sur d'autres sites qui disposent de longues séries de...
Tipo: Meeting Paper Palavras-chave: VARIABILITE INTERANNUELLE; FLUX; CO2; COUVERT FORESTIER; STOCKAGE DE CARBONE.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009eb378c0a&uri=/notices/prodinra1/2009/07/
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Application of 238U/234Th ratios to determine particle flux and trace element residence times in tropical marine systems IRD
Szymczak, R.; Zaw, M..
Tipo: Text Palavras-chave: MILIEU MARIN; PARTICULE; FLUX; INDICATEUR ECOLOGIQUE; RADIOELEMENT; ISOTOPE RADIOACTIF; URANIUM; THORIUM; POLLUTION MARINE; CYCLE BIOGEOCHIMIQUE; ELEMENT EN TRACE; VARIATION TEMPORELLE; INDICATEUR BIOLOGIQUE.
Ano: 2002 URL: http://www.documentation.ird.fr/hor/fdi:010032829
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Atmospheric 7Be/210Pb as a tool for determining the origin of detrital material in ombrogenous sediment : a hypothesis IRD
Holmes, C.W.; Shinn, E.; Marot, M.E..
Tipo: Text Palavras-chave: SEDIMENTATION DETRITIQUE; TRANSPORT; INDICATEUR ECOLOGIQUE; ATMOSPHERE; ISOTOPE RADIOACTIF; PLOMB; BERYLIUM; SEDIMENT; FLUX; INDICATEUR BIOLOGIQUE; RADON.
Ano: 2002 URL: http://www.documentation.ird.fr/hor/fdi:010032789
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Bilans spatialisés de carbone, d'azote et de phosphore d'un terroire de savane ouest-africaine : 2. Flux d'éléments et fonctionnement d'un système agro-pastoral IRD
Manlay, Raphaël; Ickowicz, A.; Masse, Dominique; Feller, Christian; Richard, D..
Tipo: Text Palavras-chave: DEGRADATION DU SOL; STOCK ORGANIQUE; CARBONE; AZOTE; PHOSPHORE; FLUX; BIOMASSE; UTILISATION DU SOL; AGROPASTORALISME; BETAIL; DEBOISEMENT; VILLAGE; SAVANE; AGRICULTURE DURABLE.
Ano: 2004 URL: http://www.documentation.ird.fr/hor/fdi:010034984
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Caractéristiques du milieu lagonaire autour de Papeete : influence des apports terrigènes et anthropiques : rapport final de convention IRD
Fichez, Renaud; Harris, Pierre; Pagès, Jean; Talbot, Vincent; Torréton, Jean-Pascal.
Le travail accompli dans le cadre de la présente convention consiste à décrire les caractéristiques du milieu avec une couverture spatiale satisfaisante et pour des conditions saisonnières contrastées, à prendre en compte le compartiment bactérien (abondance, production) dans les eaux lagonaires, à procéder à une évaluation préliminaire de l'importance de la sédimentation en différents points du lagon, à localiser et caractériser sur la base des résultats précédents les zones les plus menacées par les apports terrigènes et anthropiques
Tipo: Text Palavras-chave: POLLUTION; LAGON; EUTROPHISATION; ENVIRONNEMENT; ANTHROPISATION; SEDIMENTATION LAGUNAIRE; FLUX; PARTICULE; MILIEU LAGONAIRE; APPORT TERRIGENE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010016809
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Carbon flux at the water-sediment interface of tropical lagoons IRD
Boucher, G.; Clavier, Jacques.
Tipo: Text Palavras-chave: LAGON; CARBONE; FLUX; BILAN ENERGETIQUE; SEDIMENTATION MARINE; RESPIRATION; METABOLISME; FONCTIONNEMENT DE L'ECOSYSTEME.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010026636
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Carbone fluxes and climate in the equatorial Pacific IRD
Le Borgne, Robert.
Tipo: Text Palavras-chave: CLIMAT; FLUX; CARBONE; UPWELLING; INTERACTION OCEAN ATMOSPHERE; EL NINO; PRODUCTION PRIMAIRE; LA NINA.
Ano: 1997 URL: http://www.documentation.ird.fr/hor/fdi:010012079
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Comportement du carbone organique dans les eaux du fleuve Niger lors de leur traversée du delta intérieur du Niger (au Mali) IRD
Orange, Didier; Arfi, Robert; Picouet, C.; Etcheber, H..
Tipo: Text Palavras-chave: COURS D'EAU; DELTA; EAU DE SURFACE; CARBONE ORGANIQUE; FLUX; MATIERE ORGANIQUE DISSOUTE; MATIERE ORGANIQUE PARTICULEE; MATIERE EN SUSPENSION; PRODUCTION PRIMAIRE; CHLOROPHYLLE; DIATOMEE; REGIME HYDROLOGIQUE; PLAINE INONDABLE; MINERALISATION; CYCLE BIOGEOCHIMIQUE.
Ano: 2004 URL: http://www.documentation.ird.fr/hor/fdi:010034975
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Decrease in allochthonous organic inputs in dark submarine caves, connection with lowering in benthic community richness IRD
Fichez, Renaud.
Tipo: Text Palavras-chave: GROTTE; MILIEU BENTHIQUE; SEDIMENTATION EN MER PROFONDE; FLUX; MESURE; PARTICULE; CARBONE ORGANIQUE; AZOTE; PIEGE; BIOMASSE; LUMIERE; BENTHOS; FONCTIONNEMENT DE L'ECOSYSTEME; MODELISATION.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:010019257
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Erosion chimique du bassin versant du Congo : variabilité spatio-temporelle des flux de Co2 consommé par altération de la croute continentale IRD
Amiotte Suchet, P.; Probst, J.L..
Tipo: Text Palavras-chave: CHIMIE DE L'EAU; ELEMENT CHIMIQUE MAJEUR; GAZ CARBONIQUE; GAZ DISSOUS; FLUX; VARIATION TEMPORELLE; VARIATION SPATIALE; DEBIT; MODELISATION; EROSION CHIMIQUE; MODELE MEGA; MODELE GEM-CO2.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:42666
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Estimation of bottom ammonium affinity in the New Caledonian lagoon IRD
Boucher, G.; Clavier, Jacques; Garrigue, Claire.
Ammonium affinity of New Caledonia lagoon benthic communities was measured during the course of 33 #in situ$ enrichment experiments, in order to estimate the contribution of benthos to ammonium fluxes. Ammonium chloride was injected into enclosures pushed into the sediment ... Ammonium kinetic uptake was then followed for two yours. Grey-sand bottom displayed the highest affinity was the same order of magnitude. Macrophytes, and microphytes (when macrophytes are absent), account for the bulk of ammonium bottom uptake. As a result, grey-sand bottoms with their dense macrophyte cover represent a sink for water column nitrogen and play a key role in nutrient cycling of the lagoon. (D'après résumé d'auteur)
Tipo: Text Palavras-chave: LAGON; SEDIMENT; BENTHOS; AMMONIUM; FLUX; CORRELATION NUMERIQUE; MACROPHYTE; CYCLE DE L'AZOTE.
Ano: 1994 URL: http://www.documentation.ird.fr/hor/fdi:39878
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FLUPAC, a contribution to equatorial Pacific JGOFS (abstract) IRD
Le Bouteiller, Aubert.
Tipo: Text Palavras-chave: COUCHE EUPHOTIQUE; PRODUCTION PRIMAIRE; PHOTOSYNTHESE; CARBONE; FLUX; PROGRAMME DE RECHERCHE; SURVEILLANCE; TELEDETECTION.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:39881
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Flux de carbone organique de l'Amazone et de ses principaux affluents IRD
Seyler, Patrick; Moreira Turcq, Patricia; Coynel, A.; Etcheber, H.; Guyot, Jean-Loup.
Tipo: Text Palavras-chave: COURS D'EAU; CARBONE ORGANIQUE; FLUX; BILAN ORGANIQUE; DEFORESTATION; TRANSPORT LIQUIDE; SEDIMENTATION FLUVIATILE; MATIERE ORGANIQUE DISSOUTE; MATIERE ORGANIQUE PARTICULEE; LESSIVAGE; PLAINE INONDABLE; SOL; REGIME HYDROLOGIQUE; VARIATION PLURIANNUELLE; CYCLE BIOGEOCHIMIQUE.
Ano: 2004 URL: http://www.documentation.ird.fr/hor/fdi:010034974
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Flux de carbones et climat dans le Pacifique équatorial IRD
Le Borgne, Robert.
Tipo: Text Palavras-chave: CLIMAT; FLUX; CARBONE; UPWELLING; INTERACTION OCEAN ATMOSPHERE; EL NINO; PRODUCTION PRIMAIRE; LA NINA.
Ano: 1997 URL: http://www.documentation.ird.fr/hor/fdi:010012073
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Flux of cadmium through the marine nematode Enoplus brevis Bastian, 1865 IRD
Howell, R.; Smith, L..
Tipo: Text Palavras-chave: NEMATODE; MILIEU MARIN; PHYSIOLOGIE; FLUX; METAL; EXPERIMENTATION; CADMIUM; ENOPLUS BREVIS.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:21794
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Fresh equatorial jets IRD
Roemmich, D.; Morris, M.; Young, W.R.; Donguy, Jean-René.
A vertically sheared eastward jet in the Equatorial pacific in late 1991 and early 1992 carried relatively fresh water from the Western Pacific overriding the saltier surface layer of the central region. Salinity anomalies of about -1.0 psu were observed over a period of several months in a surface layer 50 m thick near the equator. Below this fresh layer there was a steep halocline having very little temperature stratification, so that the density changes were dominated by salinity. In December 1991, eastward surface velocities in the fresh jet at 170°W were 100 cm s-1 with a shear of about 40 cm s-1 in the top 100 m; the core of the jet was about 200 km in width, centered at 1.5°S. The jet decayed and vanished over the next few months, though the surface...
Tipo: Text Palavras-chave: CIRCULATION OCEANIQUE; COURANT EQUATORIAL; FLUX; SALINITE; TEMPERATURE.
Ano: 1994 URL: http://www.documentation.ird.fr/hor/fdi:42863
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Geostrophic transports of the major current systems in the Tropical indian and Pacific Oceans IRD
Meyers, G.; Donguy, Jean-René; Bailey, R..
Tipo: Text Palavras-chave: COURANT GEOSTROPHIQUE; FLUX; VARIABILITE; CIRCULATION OCEANIQUE; BATHYTHERMOGRAPHE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010013648
Registros recuperados: 42
Primeira ... 123 ... Última
 

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