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Registros recuperados: 4
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Distribution and lability of land-derived organic matter in the surface sediments of the Rhone prodelta and the adjacent shelf (Mediterranean Sea, France): a multi proxy study ArchiMer
Bourgeois, S.; Pruski, A. M.; Sun, M-y.; Buscail, R.; Lantoine, F.; Kerherve, P.; Vetion, G.; Riviere, B.; Charles, F..
The Gulf of Lions is a river-dominated ocean margin that receives high loads of nutrients and particulate matter from the Rhone River but most particulate materials settle rapidly on the nearshore seafloor. One question is raised on the fate of these large quantities of organic carbon delivered by the river to the coastal marine environment. Surface sediments (0-0.5 cm) were collected in the Rhone prodelta and its adjacent shelf during a period of low river discharge (April 2007, 16 stations). The sources, distribution and lability of sedimentary organic matter were examined using bulk (organic carbon, total nitrogen, stable carbon isotope ratios, and grain size) and molecular-level (pigments, amino acids, fatty acids, and delta(13)C of individual fatty...
Tipo: Text
Ano: 2011 URL: https://archimer.ifremer.fr/doc/00303/41424/40617.pdf
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Evolution des taux d’azote et de carbone organiques dans un sol nu après 15 ans d’enfouissement de paille sous différentes conditions Inra
Morel, R.; Chabouis, C.; Bourgeois, S..
Ce mémoire relate les premiers résultats d’une expérience parcellaire mise en place en 1959 en sol maintenu sans culture pour étudier les effets d’enfouissement de pailles de céréales et d’azote minéral sous différentes conditions. Les traitements appliqués au sol sont les suivants : 1. - sans azote minéral, sans paille. 2. - sans azote minéral, avec paille. 3. - sans azote minéral, avec paille préhumifiée. 4. - avec azote minéral, sans paille. 5. - avec azote minéral, avec paille. 6. - avec paille préhumifiée en présence d’azote minéral. Les apports de pailles (blé) et d’azote minéral sont respectivement par ha et par an de 7 000 et 70 kg. La préhumification, réalisée dans des cuves de ciment isothermes, apporte des modifications importantes :...
Tipo: Journal Article Palavras-chave: ENFOUISSEMENT DE PAILLE; PAILLE PREHUMIFIEE; SOL NU; EVOLUTION A LONG TERME; CEREALE; HUMIDIFICATION; TENEUR EN AZOTE DU SOL; TENEUR EN CARBONE DU SOL; AZOTE MINERAL; CARBONE ORGANIQUE; AZOTE ORGANIQUE.
Ano: 1981 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20081728e02c&uri=/notices/prodinra1/2008/10/
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Temporal variability of live (stained) benthic foraminiferal faunas in a river-dominated shelf – Faunal response to rapid changes of the river influence (Rhône prodelta, NW Mediterranean) ArchiMer
Goineau, A.; Fontanier, C.; Jorissen, F.; Buscail, R.; Kerherve, P.; Cathalot, C.; Pruski, A. M.; Lantoine, F.; Bourgeois, S.; Metzger, E.; Legrand, E.; Rabouille, Christophe.
In the context of the French research project CHACCRA (Climate and Human-induced Alterations in Carbon Cycling at the River–seA connection), living (rose Bengal-stained) benthic foraminifera were investigated at two stations (24 and 67 m depth) in the Rhône prodelta (NW Mediterranean, Gulf of Lions). The aim of this study was to precise the response of benthic foraminiferal faunas to temporal changes of the Rhône River inputs (e.g. organic and terrigeneous material). Each site was sampled in April 2007, September 2007, May 2008 and December 2008, permitting to observe foraminiferal faunas of the 63–150 and >150 μm size fractions under a wide range of environmental conditions. Obvious variations in foraminiferal faunal composition were observed during...
Tipo: Text
Ano: 2012 URL: https://archimer.ifremer.fr/doc/00140/25097/23323.pdf
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The Congolobe project, a multidisciplinary study of Congo deep-sea fan lobe complex: Overview of methods, strategies, observations and sampling ArchiMer
Rabouille, C.; Olu, Karine; Baudin, F.; Khripounoff, Alexis; Dennielou, Bernard; Arnaud-haond, Sophie; Babonneau, Nathalie; Bayle, Christophe; Beckler, J.; Bessette, Sandrine; Bombled, B.; Bourgeois, S.; Brandily, Christophe; Caprais, Jean-claude; Cathalot, Cecile; Charlier, K.; Corvaisier, R.; Croguennec, Chantal; Cruaud, Perrine; Decker, Carole; Droz, L.; Gayet, Nicolas; Godfroy, Anne; Hourdez, S.; Le Bruchec, J.; Saout, Johan; Le Saout, Marie-helene; Lesongeur, Francoise; Martinez, P.; Mejanelle, L.; Michalopoulos, P.; Mouchel, Olivier; Noel, Philippe; Pastor, Lucie; Picot, M.; Pignet, Patricia; Pozzato, L.; Pruski, A. M.; Rabiller, Manuella; Raimonet, M.; Ragueneau, O.; Reyss, J. L.; Rodier, Philippe; Ruesch, Blandine; Ruffine, Livio; Savignac, F.; Senyarich, C.; Schnyder, J.; Sen, Arunima; Stetten, E.; Sun, Ming Yi; Taillefert, M.; Teixeira, S.; Tisnerat-laborde, N.; Toffin, Laurent; Tourolle, Julie; Toussaint, F.; Vetion, G.; Jouanneau, J. M.; Bez, M..
The presently active region of the Congo deep-sea fan (around 330 000 km2), called the terminal lobes or lobe complex, covers an area of 2500 km2 at 4700–5100 m water depth and 750–800 km offshore. It is a unique sedimentary area in the world ocean fed by a submarine canyon and a channel-levee system which presently deliver large amounts of organic carbon originating from the Congo River by turbidity currents. This particularity is due to the deep incision of the shelf by the Congo canyon, up to 30 km into the estuary, which funnels the Congo River sediments into the deep-sea. The connection between the river and the canyon is unique for major world rivers. In 2011, two cruises (WACS leg 2 and Congolobe) were conducted to simultaneously investigate the...
Tipo: Text Palavras-chave: Chemosynthetic habitats; Congo deep-sea fan; Fine sediment; Sedimentation rate; Seafloor morphology; Turbidite; Vesicomyidae.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00335/44580/44298.pdf
Registros recuperados: 4
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