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Registros recuperados: 23
Primeira ... 12 ... Última
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Advantages of the metagenomic approach for soil exploration: reply from Vogel et al. Inra
Vogel, T.M.; Hirsch, P.R.; Simonet, P.; Janson, J.K.; Tiedje, J.M.; van Elsas, J.D.; Nalin, R.; Philippot, L.; Bailey, M.J..
Tipo: Journal Article Palavras-chave: MICROBIOLOGY; SOIL; ADVANTAGE; METAGENOMIC; DNA; ENVIRONMENT.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20109aa7b47b&uri=/notices/prodinra1/2011/06/
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Agronomy for sustainable agriculture. A review Inra
Lichtfouse, E.; Navarrete, M.; Debaeke, P.; Souchere, V.; Alberola, C.; Ménassieu, J..
Sustainability rests on the principle that we must meet the needs of the present without compromising the ability of future generations to meet their own needs. Starving people in poor nations, obesity in rich nations, increasing food prices, on-going climate changes, increasing fuel and transportation costs, flaws of the global market, worldwide pesticide pollution, pest adaptation and resistance, loss of soil fertility and organic carbon, soil erosion, decreasing biodiversity, desertification, and so on. Despite unprecedented advances in sciences allowing us to visit planets and disclose subatomic particles, serious terrestrial issues about food show clearly that conventional agriculture is no longer suited to feeding humans and preserving ecosystems....
Tipo: Journal Article Palavras-chave: AGROECOLOGIE; LUTTE PHYTOSANITAIRE SUSTAINABLE AGRICULTURE; CLIMATE CHANGE; BIODIVERSITY; ORGANIC FARMING; PEST CONTROL; FOOD QUALITY; WATER; SOIL; PESTICIDE; FARMING SYSTEM.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009c24da860&uri=/notices/prodinra1/2010/06/
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Biases in the spatial estimation of pesticide loss to groundwater Inra
Coquet, Y.; Hadjar, D.; Gilliot, J.M.; Charnay, M.P.; Moeys, J.; Dufour, A.; Beaudoin, N..
Tipo: Journal Article Palavras-chave: ATRAZINE; ISOPROTURON; METAMITRON; VARIABILITE SPATIALE; EAU SOUTERRAINE; METHODE D'ESTIMATION; BASSIN VERSANT; LESSIVAGE; RISQUE POUR L'ENVIRONNEMENT; MODELE; SCIENCES DU SOL; HYDROLOGIE PESTICIDE FATE; HERBICIDE; SPATIAL VARIABILITY; SOIL; ENVIRONMENTAL RISK ASSESSMENT.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007f54a6e17&uri=/notices/prodinra1/2009/11/
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Bridging microbial community ecology and nitrogen cycling in soil Inra
Philippot, L..
Tipo: Conference Paper Palavras-chave: MICROBIAL COMMUNITY; ECOLOGY; NITROGEN; SOIL; DENITRIFICATION.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20116accbdde&uri=/notices/prodinra1/2011/06/
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Comparison of ecosystem and soil CO2 efflux in a beech (Fagus Sylvatica L.) forest Inra
NGAO, J.; Longdoz, B.; Granier, A..
Tipo: Meeting Paper Palavras-chave: RESPIRATION DU SOL; CARBOEUROPE ECOSYSTEM; SOIL; CO2; BEECH; EFFLUX; EDDY COVARIANCE TECHNIQUE.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009540ad9c6&uri=/notices/prodinra1/2009/07/
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Detecting zones of abrupt change in soil data, with an application to an agricultural field Inra
Gabriel, E.; Allard, D.; Mary, B.; Guérif, M..
We propose a new method for estimating and testing the zones where a variable has discontinuities or sharp changes in the mean. Such zones are called Zones of Abrupt Change (ZACs). Our method is based on the statistical properties of the estimated gradient of the variable. The local gradient is first interpolated by kriging. Then we test whether the estimated local gradient exceeds some critical threshold computed under the null hypothesis of a constant mean. The locations where the local test is rejected define the potential ZACs, which are then tested globally. Using this method, we analysed soil data from an agricultural field. The analysis of the main soil components of the ploughed layer (clay, silt and sand particles and calcium carbonate content)...
Tipo: Journal Article Palavras-chave: CHANGEMENT ABRUPT; KRIGEAGE; FONCTION ALEATOIRE; GEOSTATISTIQUE; MATHEMATIQUE ABRUPT CHANGE; SOIL; ZAC.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007188f6148&uri=/notices/prodinra1/2009/02/
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Development and validation of an oligonucleotide microarray to characterise ectomycorrhizal fungal communities Inra
Reich, M.; Kohler, A.; Martin, F.; Buee, M..
Background: In forest ecosystems, communities of ectomycorrhizal fungi (ECM) are influenced by several biotic and abiotic factors. To understand their underlying dynamics, ECM communities have been surveyed with ribosomal DNA-based sequencing methods. However, most identification methods are both time-consuming and limited by the number of samples that can be treated in a realistic time frame. As a result of ongoing implementation, the array technique has gained throughput capacity in terms of the number of samples and the capacity for parallel identification of several species. Thus far, although phylochips (microarrays that are used to detect species) have been mostly developed to trace bacterial communities or groups of specific fungi, no phylochip has...
Tipo: Journal Article Palavras-chave: FINE-SCALE DISTRIBUTION; IDENTIFICATION; FOREST; ARRAY; HOST; SOIL; BASIDIOMYCOTA; SPECIFICITY; DIVERSITY; PATHOGENS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b686b787&uri=/notices/prodinra1/2010/10/
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Does forest liming impact the enzymatic profiles of ectomycorrhizal communities through specialized fungal symbionts ? Inra
Rineau, F.; Garbaye, J..
Liming (Ca–Mg soil amendment) is a forestry practice used to correct soil acidification and restore health and productivity in declining stands. Liming is known to modify tree mineral nutrition beyond the sole Ca and Mg. We hypothesized that liming also modifies the very functioning of the tree absorbing system (that is the ectomycorrhizal fine roots) in a way that facilitates the mobilization of mineral nutrients, particularly those entrapped in soil organic matter. This hypothesis has been tested here in beech and Norway spruce stands in North-Eastern France. In autumn, we compared the ectomycorrhizal community structure and the enzymatic profiles of ectomycorrhizal root tips in limed and untreated plots by measuring the activities of eight enzymes...
Tipo: Journal Article Palavras-chave: ABIES L. KARST.; NORWAY SPRUCE; FUNCTIONAL DIVERSITY; MYCORRHIZAL FUNGI; SOIL; ACIDIFICATION; SECRETION; NUTRITION; ENZYMES; PLANTS; CA–MG SOIL AMENDMENT; ECTOMYCORRHIZAL COMMUNITY; SECRETED ENZYMATIC ACTIVITIES; NUTRIENT MOBILIZATION; FUNCTIONAL SPECIALIZATION.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20109694fcef&uri=/notices/prodinra1/2010/10/
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Efectos de la producci??n agropecuaria en los suelos de los p??ramos : el caso de Guangaje (Debate Agrario-Rural) Buscador Latinoamericano
Alom??a, Mercedes.
Los p??ramos son esenciales proveedores de agua, esta primordial funci??n est?? en constante peligro por la erosi??n de los suelos, debido tanto a factores naturales como a la acci??n humana. Este deterioro es ya observable en sectores como Guangaje, en la provincia de Cotopaxi, en donde la ampliaci??n de la frontera agr??cola, motivada por las condiciones de pobreza y el crecimiento demogr??fico, agudizan el problema. Sin embargo, en algunas comunidades se mantienen estrategias en el uso del suelo que palian los efectos de la sobre-explotaci??n.
Tipo: Art??culo Palavras-chave: P??RAMOS; PRODUCCI??N AGROPECUARIA; SUELOS; AGUA; CULTIVOS; EROSI??N; MOORS; FARMING; SOIL; WATER; CROPS; EROSION; GUANGAJE; COTOPAXI; ECUADOR.
Ano: 2005 URL: http://hdl.handle.net/10469/5338
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Effets de divers apports en matière organique sur le sol, la vigne et le vin, dans un essai de longue durée à Chinon (France) Inra
Morlat, R.; Gravier, J.C..
Tipo: Conference Paper Palavras-chave: VIGNE; VIN; TYPICITE DU VIN; MATIERE ORGANIQUE; SOL; AMENDEMENT; NUTRITION AZOTEE ORGANIC MATTER; SOIL; VINE; BERRY; WINE.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009ad1c515f&uri=/notices/prodinra1/2011/02/
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Estimation of carbon stocks in a beech forest (Fougères Forest - W. France): extrapolation from the plots to the whole forest Inra
Lecointe, S.; Nys, C.; Walter, C.; Forgeard, F.; Huet, S.; Recena, P.; Follain, S..
The Kyoto Conference identified the need to establish an accurate inventory of carbon stocks in forests. Carbon stocks were estimated in a beech forest (Fougères forest - France) using a combination of in situ field samples with existing soil and vegetation maps. Soil, humus and vegetation stocks were measured at 100 sampling points distributed throughout representative classes within the entire forest massif. Carbon levels in the soil and humus were determined in the laboratory; models predicting the biomass were used to estimate the stocks in the vegetation. From the statistical analyses and existing maps these point data were extrapolated to the whole forest using two changes of scale. The total carbon stock was estimated to lie in a range between 442...
Tipo: Journal Article Palavras-chave: STOCK DE CARBONE; CHANGEMENT D'ECHELLE CARBON STOCK; SCALE CHANGE; SOIL.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20071a9a0eb5&uri=/notices/prodinra1/2009/11/
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Few comments about isotopic discrimination during soil CO2 diffusion Inra
Longdoz, B..
Tipo: Meeting Paper Palavras-chave: RESPIRATION DU SOL ISOTOPIC; CO2; SOIL; DIFFUSION.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009bf62915&uri=/notices/prodinra1/2010/09/
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Future directions for advanced evapotranspiration modeling: assimilation of remote sensing data into crop simulation models and SVAT models Inra
Olioso, A.; Inoue, Y.; Ortega-Farias, S.; Demarty, J.; Wigneron, J.P.; Braud, I.; Jacob, F.; Lecharpentier, P.; Ottlé, C.; Calvet, J.C.; Brisson, N..
Soil-Vegetation-Atmosphere Transfer Models (SVAT) and Crop Simulation Models describe physical and physiological processes occurring in crop canopies. Remote sensing data may be used through assimilation procedures for constraining or driving SVAT and crop models. These models provide continuous simulation of processes such as evapotranspiration and, thus, direct means for interpolating evapotranspiration between remote sensing data acquisitions (which is not the case for classical evapotranspiration mapping methods). They also give access to variables other than evapotranspiration, such as soil moisture and crop production. We developed the coupling between crop, SVAT and radiative transfer models in order to implement assimilation procedures in various...
Tipo: Journal Article Palavras-chave: ASSIMILATION DE DONNÉES; SIMULATION DE CULTURE; HUMIDITÉ ASSIMILATION OF DATA INTO MODELS; CROP SIMULATION MODEL; EVAPOTRANSPIRATION; IRRIGATION; REMOTE SENSING; SOIL; VEGETATION; ATMOSPHERE TRANSFER MODEL.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0600036125111436&uri=/notices/prodinra1/2010/11/
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How plant species cope with water stress Inra
Brendel, O.; Cochard, H..
Tipo: Book Chapter Palavras-chave: CAVITATION; EMBOLIE WATER STRESS; SOIL; DROUGHT; PLANT; XYLEM; MEDITERRANEAN SPECIES.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011626019d4&uri=/notices/prodinra1/2011/04/
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Iron dynamics in the rhizosphere as a case study for analysing interactions among soils, plants and microbes Inra
Lemanceau, P.; Vansuyt, G.; Avoscan, L.; Bernaud, E.; Corberand, T.; Mazurier, S.; Mougel, C..
Tipo: Meeting Paper Palavras-chave: PARTIE DU SOL; CONCENTRATION DE FER RHIZOSPHERE; INTERACTION; SOIL; PLANT; MICROBE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20106f83a9d1&uri=/notices/prodinra1/2011/07/
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Iron dynamics in the rhizosphere : consequences for plant health and nutrition Inra
Robin, A.; Vansuyt, G.; Hinsinger, P.; Meyer, J.M.; Briat, J.F.; Lemanceau, P..
Iron is an essential micronutrient for most organisms due to its role in fundamental metabolic processes. In cultivated soils, soil solution iron is mostly oxidized [Fe(III) species] unless local anoxic conditions develop. The concentration of these Fe(III) species is small in soil solution due to the low solubility of ferric oxides, oxyhydroxides, and hydroxides, which is minimal at neutral and alkaline pH. In the rhizosphere, iron concentration in the soil solution is even lower because of its uptake by aerobic organisms (plants and microorganisms), leading to a high level of competition for Fe(III). In order to face iron competition, these organisms have evolved active uptake strategies based on acidification, chelation, and/or reduction processes. Iron...
Tipo: Book Chapter Palavras-chave: IRON; SOIL; FERRIC OXIDES; PLANT MICROBE INTERACTIONS; PLANT HEALTH; PLANT NUTRITION.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200979db7a82&uri=/notices/prodinra1/2011/01/
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Long-term pollution by chlordecone of tropical volcanic soils in the French West Indies: A simple leaching model accounts for current residue Inra
Cabidoche, Y.M.; Achard, R.; Cattan, P.; Clermont-Dauphin, C.; Massat, F.; Sansoulet, J..
Chlordecone was applied between 1972 and 1993 in banana fields of the French West Indies. This resulted in long-term pollution of soils and contamination of waters, aquatic biota, and crops. To assess pollution level and duration according to soil type, WISORCH, a leaching model based on first-order desorption kinetics, was developed and run. Its input parameters are soil organic carbon content (SOC) and SOC/water partitioning coefficient (Koc). It accounts for current chlordecone soil contents and drainage water concentrations. The model was valid for andosol, which indicates that neither physicochemical nor microbial degradation occurred. Dilution by previous deep tillages makes soil scrapping unrealistic.Lixiviation appeared the main way to reduce...
Tipo: Journal Article Palavras-chave: CHLORDECONE; POLLUTION; PERSISTENCE; SOIL; WATER.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201068325aa1&uri=/notices/prodinra1/2011/07/
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PAHs transfer to milk in exposed lactating ruminants Inra
Costera, A.; Feidt, C.; Dziurla, M.A.; Monteau, F.; Toussaint, H.; Rychen, G..
Polycyclic Aromatic Hydrocarbons (PAHs) are carcinogenic pollutants of mainly pyrolytic origin. Dairy cattle may introduce these pollutants in the food chain by grazing on contaminated grasslands. This study was aimed to determine the influence of the matrice (soil, hay, oil as control) on the transfer to milk and urine of three PAHs (phenanthrene, pyrene and benzo(a)pyrene) and their major metabolites. The studied matrices were artificially contaminated to ensure 50 mg ingestion for each PAH. Three goats were placed in controlled conditions and the matrice administration was achieved according to a latin square design. After each matrice administration (500 g hay, 25 g soil, 5 mL oil), milk and urine were sampled for the 57 h period following...
Tipo: Conference Paper Palavras-chave: HYDROCARBURE AROMATIQUE; CHAINE ALIMENTAIRE; POLLUANT; LAIT DE VACHE; TRANSFERT POLYCYCLIC AROMATIC HYDROCARBONS; PAH; CARCINOGENIC POLLUTANTS; DAIRY CATTLE; FOOD CHAIN; GRAZING; HAY; SOIL; TRANSFER; MILK; URINE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20076af05990&uri=/notices/prodinra1/2008/03/
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RECORD: a new software platform to model and simulate cropping systems Inra
Bergez, J.E.; Chabrier, P.; Garcia, F.; Gary, C.; Makowski, D.; Quesnel, G.; Ramat, E.; Raynal, H.; Rousse, N.; Wallach, D..
Tipo: Conference Paper Palavras-chave:  VLE (VIRTUAL LABORATORY ENVIRONMENT)  MODELLING; INNOVATIVE CROPPING SYSTEMS; SOFTWARE PLATFORM; SOIL; PESTS; PATHOGENS.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011b1a3a4e7&uri=/notices/prodinra1/2011/02/
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Relative bioavailability of soil-bound polycyclic aromatic hydrocarbons in goats Inra
Ounnas, F.; Jurjanz, S.; Dziurla, M.A.; Guiavarc'h, Y.; Feidt, C.; Rychen, G..
This study aimed at determining the relative bioavailability (RB) of three soil-bound PAH model compounds (phenanthrene [PHE], pyrene [PYR] and benzo[a]pyrene [BaP]) in four lactating goats. RB was estimated by comparing the urinary or milk excretion of the major mono-hydroxylated metabolites of PAHs after ingestion of PAH spiked-soil and -oil feeds. A series of three increasing doses were orally administered in order to estimate the dose response of the two different matrices.The results of this study reveal that urinary excretion prevailed compared to milk excretion (30-fold higher). The recovery rate of mono-hydroxylated metabolites of PAHs in urine and milk indicate that PYR was absorbed at a minimum level of 36%. 3-OH PHE excreted in urine suggests...
Tipo: Journal Article Palavras-chave: SOIL; PAHS; BIOAVAILABILITY; RUMINANT; 1-OH PYRENE; URINE.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201064600037&uri=/notices/prodinra1/2010/06/
Registros recuperados: 23
Primeira ... 12 ... Última
 

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