Добірка наукової літератури з теми "Productivité de l'eau"
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Статті в журналах з теми "Productivité de l'eau"
Bengeni, D., P. Lim, and A. Belaud. "Qualité des eaux de trois bras morts de la Garonne variabilité spatio-temporelle)." Revue des sciences de l'eau 5, no. 2 (April 12, 2005): 131–56. http://dx.doi.org/10.7202/705125ar.
Повний текст джерелаGonzález-Camacho, Juan Manuel, Jean Claude Mailhol, and Françoise Ruget. "Impacts locaux attendus de l'augmentation du CO2 dans l'atmosphère sur la productivité de l'eau du maïs dans la Drôme, France." Irrigation and Drainage 57, no. 2 (2008): 229–43. http://dx.doi.org/10.1002/ird.332.
Повний текст джерелаMandi, L., J. Darley, J. Barbe, and B. Baleux. "Essais d'épuration des eaux usées de Marrakech par la jacinthe d'eau (Charges organique, bactérienne et parasitologique)." Revue des sciences de l'eau 5, no. 3 (April 12, 2005): 313–33. http://dx.doi.org/10.7202/705134ar.
Повний текст джерелаLarocque, Guy R., Jagtar Bhatti, Paul Hazlett, André Arsenault, and Alexander Komarov. "Section spéciale: Avancées des recherches sur la productivité, la succession, l'aménagement et les cycles du carbone et de l'eau en forêt boréale." Écoscience 21, no. 3-4 (September 2014): viii—x. http://dx.doi.org/10.2980/21-(3-4).
Повний текст джерелаDembélé, Y., S. Ouattara, and A. Keïta. "Application des indicateurs “approvisionnement relatif en eau” et “productivité de l'eau” à l'analyse des performances des petits périmètres irrigués au Burkina Faso." Irrigation and Drainage 50, no. 4 (November 15, 2001): 309–21. http://dx.doi.org/10.1002/ird.21.
Повний текст джерелаSaunders, George. "Employment and the Productivity Slowdown: 1958-1980." Articles 40, no. 2 (April 12, 2005): 219–42. http://dx.doi.org/10.7202/050131ar.
Повний текст джерелаMoreki, J. C., M. I. Moseki, and T. Kopano. "Current status, challenges and strategies employed to raise the population of small ruminants in Botswana:Areview." Nigerian Journal of Animal Production 48, no. 6 (January 18, 2022): 332–47. http://dx.doi.org/10.51791/njap.v48i6.3321.
Повний текст джерелаPerrier, Christine, Claude Hillaire-Marcel, and Luc Ortlieb. "Paléogéographie littorale et enregistrement isotopique (13C, 18O) d’événements de type El Niño par les mollusques holocènes et récents du nord-ouest péruvien." Géographie physique et Quaternaire 48, no. 1 (November 23, 2007): 23–38. http://dx.doi.org/10.7202/032970ar.
Повний текст джерелаDauda, A. B., H. A. Salele, and O. G. Orimogunje. "Influence of feeding frequency and feeding time on growth performance and feed utilisation of African catfish (Clarias gariepinus Burchell 1822) fingerlings." Nigerian Journal of Animal Production 49, no. 1 (February 25, 2022): 169–76. http://dx.doi.org/10.51791/njap.v49i1.3415.
Повний текст джерелаAdagbasa, Efosa G., and Olusola O. Ige-Olumide. "Geospatial Analysis of Coastal Flooding Effect on Soil and Vegetation in Ilaje Local Government Area of Ondo State, Nigeria." Journal of Geospatial Science and Technology 1, no. 1 (November 1, 2014): 99–111. http://dx.doi.org/10.54222/afrigist/jgst/v1i1.6.
Повний текст джерелаДисертації з теми "Productivité de l'eau"
Sage, Elisabeth. "La concurrence par comparaison (Yardstick Competition) : théories et application. Une proposition pour les secteurs de l'eau en France." Paris 9, 1999. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1999PA090044.
Повний текст джерелаWatanabe, Shohei. "La couleur de l'eau et la transmission de la lumière dans les écosystèmes lacustres." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28686/28686.pdf.
Повний текст джерелаAlbasha, Rami. "Evaluation de la productivité de l’eau d’irrigation par la modélisation : le cas du maïs sous goutte-à-goutte enterré en sol limoneux profond." Electronic Thesis or Diss., Paris, AgroParisTech, 2015. http://www.theses.fr/2015AGPT0025.
Повний текст джерелаThe "more crop per drop" paradigm is behind considerable efforts to increasing the productivity of water consumed in irrigated agriculture. In this context, the evaluation of the agronomic performances of irrigation techniques and their ability to reduce the water consumption is a prerequisite for optimizing water use in irrigated agriculture. This thesis explores the potentials of Subsurface Drip Irrigation (SDI) within a modeling framework to evaluate its agronomic performance under various soil and climatic contexts.Many crop models allow today the prediction of crop yields as a function of, inter alia, the climatic conditions, the type of soil, the availability of water, of nutrient, and agricultural practices. These crop models usually couple the water and solute transfer processes in the soil to crop development. The water uptake of plant roots plays herein a key role of joining the processes in soil to those of the plant.Despite the strong spatial and temporal variability of the activity of root uptake, this activity is often presented in crop models with empirical “static” functions: the spatial distribution of water uptake depends on a predefined distribution of root density, but not on the type of irrigation. These empirical functions are found to be suitable for the simulation of root uptake when water is brought to the surface (sprinkler irrigation, gravity, etc.). However, their legitimacy under drip irrigation remains to be demonstrated.This thesis evaluates the performance of the empirical approaches for modeling root water uptake under drip irrigation, with the ultimate objective of introducing a simple crop model suitable for this technique.From the one hand, the role of the function defining the spatial distribution of root density is explored. Numerical simulations supported by field experiments allowed analyzing the phenomenon of "compensatory water uptake", which is exacerbated under localized irrigation. Considering this phenomenon in modeling was necessary for adequately predicting water consumption of the crop, the distribution of water in the soil, and especially drainage fluxes under SDI.From the other hand, the findings from the first study are taken into account in the development of SDICM, Subsurface Drip Irrigation Crop Model. SDICM is couples bidirectional water transfer process in the soil to crop growth. This model was confronted with field observations which allowed putting forward the importance of root water uptake process in the prediction of water profiles in cropped soils.Finally, an application example was conducted where the water productivity of maize under different pedo-climatic conditions was assessed using SDICM and a capacitive type model. The purpose of the comparison is to highlight the importance of simulating bidirectional soil-water transfer in the context of SDI
Cherchali, Selma. "Contribution à la résolution du problème du pixel mixte en vue de l'amélioration de l'estimation de la productivité primaire nette en zone sahélienne (couplage haute et basse résolution spatiale)." Toulouse 3, 1995. http://www.theses.fr/1995TOU30084.
Повний текст джерелаToillon, Julien. "Variabilité génétique et plasticité de l'efficience d'utilisation des ressources (eau et azote) chez les salicaceae cultivées en taillis à courte et à très courte rotation." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0096/document.
Повний текст джерелаThis work aimed (1) at characterizing the impact of planting density (PD) and pedoclimatic conditions (sites) on the physiology of poplar and willow dedicated to biomass production, (2) at evaluating the genetic variability of productivity-related traits, water-use efficiency (WUE) and nitrogen-use efficiency (NUE) in a perspective of plant breeding, and (3) at assessing the relationships among these traits. Four experimental plantations were established in northern France. Our results show that PD affects biomass production and WUE depending on sites. Under most favorable growth conditions, trees grown at higher density displayed taller stems, lower stem circumference, and lower WUE, than trees grown at lower density indicating that increased tree density mainly accentuated competition for light. Under less favorable conditions, an increase of PD involved higher WUE and lower stem circumference, likely because of an increased competition for water. Positive links between biomass production and WUE were detected for poplar and willow under environmental conditions where competition for resources was reduced. A large canopy is associated to potentially more important transpiration water losses at plant level. This could be compensated at leaf level through a better stomatal regulation. The absence of antagonism between biomass production, WUE, and NUE suggests the possibility to select genotypes for these three traits independently. Moreover, the Genotype x Site interactions indicated the difficulty to identify good genotypes for a large set of site conditions suggesting that the selection has to be realized depending on the site conditions
NDAYIZIGIYE, FRANCOIS. "La gestion conservatoire de l'eau et de la fertilite des sols au rwanda. Analyse des techniques antierosives et de leurs effets sur la productivite des terres." Université Louis Pasteur (Strasbourg) (1971-2008), 1993. http://www.theses.fr/1993STR13164.
Повний текст джерелаDhahri, Nouha. "Natural variability of pelagic and benthic conditions in the Gulf of St. Lawrence during the late Holocene." Mémoire, 2010. http://www.archipel.uqam.ca/3781/1/M11832.pdf.
Повний текст джерелаЧастини книг з теми "Productivité de l'eau"
Hien, E., W. T. Kabore, D. Masse, and P. Dugue. "Apports organiques et pratiques de conservation de l'eau comme clés de la restauration de la productivité des sols dégradés dans la zone semi aride du Burkina Faso." In Lutte antiérosive. IRD Éditions, 2012. http://dx.doi.org/10.4000/books.irdeditions.12611.
Повний текст джерела