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Contribution of artificial galleries to knowledge of karstic system behaviour in addition to natural cavern data Inra
Garry, B.; Blondel, T.; EMBLANCH, C.; Sudre, C.; Bilgot, S.; Cavaillou, A.; Boyer, D.; Auguste, M..
The study of karstic systems is mainly based on hydrodynamic and hydrochemical data collected at system inlets (rainfall) and outlets (springs). Indeed, some complementary data base coming from speleological and hydrogeological explorations of natural cavities exist. However, they are not completely representative of all the types of flows. These kinds of flow which have a large part in general hydrodynamics of a system are already the result of a structured organization of karst due to complex phenomena of limestone dissolution. Artificial galleries have the advantage to be easily accessible. Moreover, they cut randomly flows which are much less structured or not. Both types of information seem to be complementary in order to understand a karstic aquifer....
Tipo: Journal Article Palavras-chave: ZONE VADOSE; ZONE NON SATUREE; INFILTRATION; TRACEUR; HYDROCHIMIE; AQUIFERE HYDROCHEMISTRY; HYDRODYNAMICS; KARST; ARTIFICIAL GALLERY; WATER FLOW; GROUNDWATER; VADOSE ZONE; UNSATURATED ZONE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011c8e582f5&uri=/notices/prodinra1/2011/01/
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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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Variations saisonnières des activités respiratoire aérobie et dénitrifiante dans la zone non saturée du sol: expérimentation sur une parcelle agricole du Comtat Venaissin et modélisation Inra
Cannavo, P..
Tipo: Thesis Palavras-chave: MILIEU POREUX; RESPIRATION AEROBIE; ACTIVITE MICROBIENNE; TEMPERATURE DU SOL; ZONE NON SATUREE; BIOGEOCHIMIE; FERTILISATION AZOTEE; RESPIRATION DU SOL; DENITRIFICATION; OXYDE NITREUX; ACTIVITE ENZYMATIQUE; PROTECTION DE L'ENVIRONNEMENT.
Ano: 2003 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300030931100232&uri=/notices/prodinra1/2010/12/
Registros recuperados: 3
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