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Analyse d'un réseau piézométrique par imagerie électrique multi-électrodes (bassin versant de Kerbernez, Bretagne) IRD
Montoroi, Jean-Pierre; Robain, Henri; Schmutz, M.; Martin, C.; Molenat, J.; Ruiz, L..
Tipo: Text Palavras-chave: EAU SOUTERRAINE; BASSIN VERSANT; GEOPHYSIQUE; RESISTIVITE; PROSPECTION ELECTRIQUE; METHODE D'ANALYSE.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010027673
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Investigation of biogeochemical activities in the soil and unsaturated zone of weathered granite Inra
Legout, C.; Molenat, J.; Lefèbvre, S.; Marmonier, P.; Aquilina, L..
This study, based on field and laboratory work, investigates the biogeochemical activity below the organic top soil horizons, particularly the potential for nitrate removal processes in the deep vadose zone (1–2.5 m depth) of a weathered granite. An experimental site located in the Kerbernez agricultural catchment (Brittany) has been equipped with ceramic cups from 0.5 to 2.5 m depth since November 2001. This arrangement allowed collection of water samples from the soil profile and the upper part of the unsaturated weathered granite. Samples were analysed twice a month for chloride, nitrate and sulphate concentrations over a period of 2.5 years. Laboratory measurements were carried out on three soil horizons and four weathered granite facies sampled in...
Tipo: Journal Article Palavras-chave: GRANITE ALTERE; ZONE NON SATUREE; BIOGEOCHIMIE BACTERIAL ACTIVITY; DENITRIFICATION; VADOSE ZONE; WEATHERED GRANITE.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007fc11b534&uri=/notices/prodinra1/2010/11/
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