Academic literature on the topic 'Érosion sols'
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Journal articles on the topic "Érosion sols"
Konig, Dieter. "Dégradation et érosion des sols au Rwanda." Cahiers d'outre-mer 47, no. 185 (1994): 35–48. http://dx.doi.org/10.3406/caoum.1994.3503.
Full textMorsli, Boutkhil, Mohammed Habi, and Mohamed Meddi. "Dynamique de l’érosion en zone méditerranéenne algérienne : facteurs explicatifs de variation du ruissellement et de l’érosion sous différentes occupations du sol." Revue des sciences de l’eau 26, no. 2 (June 3, 2013): 89–105. http://dx.doi.org/10.7202/1016061ar.
Full textChaaouan, Jamal, Ali Faleh, Abdelhamid Sadiki, and Haytham Mesrar. "Télédétection, SIG et modélisation de l'érosion hydrique dans le bassin versant de l'oued Amzaz, Rif Central." Revue Française de Photogrammétrie et de Télédétection, no. 203 (April 8, 2014): 19–25. http://dx.doi.org/10.52638/rfpt.2013.26.
Full textBonnamour, Jacqueline. "Structures agraires et érosion des sols (Rural structures and soil erosion)." Bulletin de l'Association de géographes français 69, no. 2 (1992): 83–90. http://dx.doi.org/10.3406/bagf.1992.1615.
Full textDe Noni, Georges, J. Asseline, and M. Viennot. "Érosion des sols volcaniques de la cordillère des Andes, en Equateur." Revue de géographie alpine 88, no. 2 (2000): 13–26. http://dx.doi.org/10.3406/rga.2000.2988.
Full textVanara, Nathalie, and Richard Maire. "Déforestation et érosion des sols dans les montagnes karstiques du Guizhou, Chine." Cahiers d'Outre-Mer 61, no. 244 (October 1, 2008): 507–32. http://dx.doi.org/10.4000/com.5422.
Full textFehri, Noômène. "Action anthropique et érosion des sols dans le Chaâl-Tarfaoui (plaine de Sfax, Tunisie)." Méditerranée 100, no. 1 (2003): 87–90. http://dx.doi.org/10.3406/medit.2003.3291.
Full textMusset, Alain. "De Tlaloc a Hippocrate L'Eau et L'Organisation de L'Espace dans le Bassin de Mexico (XVIe-XVIIIe Siècle)." Annales. Histoire, Sciences Sociales 46, no. 2 (April 1991): 261–98. http://dx.doi.org/10.3406/ahess.1991.278946.
Full textMOUSSEBBIH, A., M. SOUISSI, A. LARABI, and M. FAOUZI. "Évaluation et cartographie de l’érosion hydrique moyennant des modèles empiriques dans le bassin versant de l’oued Bouregreg (Maroc)." Techniques Sciences Méthodes 11 (November 20, 2019): 67–93. http://dx.doi.org/10.36904/tsm/201911067.
Full textTessier, D. "Le sol, lieu d'échange et de transferts. Conséquences de leur utilisation par l'homme : un exemple français." Revue des sciences de l'eau 15 (April 12, 2005): 9–26. http://dx.doi.org/10.7202/705483ar.
Full textDissertations / Theses on the topic "Érosion sols"
Mehenni, Abdelwadoud. "Comportement hydromécanique et érosion des sols fins traités." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0299/document.
Full textThe current evolution of the social and economic context requires from the different actors of the public works sector to adapt their practices to the challenges of sustainable development. In the field of earthworks, companies must offer technical solutions to reuse the materials located in the vicinity of the projects in order to limit the borrowing materials and unused soils deposits. Soil treatment may allow the reuse of these materials. This study was focused on four treatment products (kaolinite, bentonite, lime and cement) as well as their effects on the hydro-mechanical behavior and internal erosion resistance of a fine silt. An enhanced HET device was designed in the framework of this study to determine the internal erosion characteristics of treated soils especially with lime and cement. Beyond the characterization of treatment effects on short-term hydro-mechanical behavior of soils, the work of this study extends to the durability of treatment and the evolution of long-term hydro-mechanical behavior of treated soils subjected to drying-wetting cycles. This study of sustainability was carried out through a multi-scale approach based on laboratory study data on soil samples and field investigations on hydraulic structures made of treated soil. The study showed that hydraulic conditions variations can decrease the performance of treated soils. These degradations result on an increase in hydraulic conductivity, a decrease of the mechanical strength and also a reduction in the critical shear stress which expresses a decrease of the internal erosion resistance. The kinetic of performance loss depends to the nature of the treatment product and percentage used as well as the exposure level, the number and amplitude of the hydraulic variations. However, the field study showed that it is possible to reduce the kinetic degradation of the soil performance through an appropriate construction design
Tarog, Ioana. "Perméabilité et érosion interne des mélanges sable-argile : Combustion théorique et expériemntale." Lyon, INSA, 2000. http://www.theses.fr/2000ISAL0068.
Full textThis work is a study of the internal erosion of the grounds and fill artificial. Erosion by mechanical wrenching of the particles of ground is analyzed using the evolution of the hydraulic conductivity of a porous environment prefissured under the action of a flow. The first two parts are devoted on the one hand to the phenomenon of internal erosion under the aspects of typology, the origin and the mechanisms of evolution, and on the other hand with the concept of permeability, as well as with the theoretical and empirical approaches used for the estimate of the hydraulic conductivity of the porous environments or of mixtures sands - clay. These two parts, in bibliographical matter, make it possible to pose the bases of this work and to understand the mechanisms which control the studied phenomenon. The third part relates to theoretical modelings, by a self-coherent method, permeability of bicomposite mixtures (materials permeable and impermeable, of type mixes sand/clay, for the ground compacted), and tri-composite (materials permeable, impermeable and infinitely permeable, of type mixes sand/clay/pocket of water, for the ground partially compacted). The fourth part presents the designed experimental device, which makes it possible to follow the hydraulic characteristics of a prefissured material, during the development of internal erosion, as well as the tests undertaken on samples of mixtures of sand/clay. This device consists of the juxtaposition of a hydraulic test and a mechanical system of creation. Of crack. From measurements of hydraulic conductivity, we deduce the variation from the opening of the crack which pro vides indications on the kinetics of internal erosion
Gafrej, Raoudha. "Modélisation conceptuelle du transfert des matières en suspension : effets d'échelles spatio-temporelles." Paris 6, 1993. http://www.theses.fr/1993PA066372.
Full textN'Simba, François. "Approche économique de lutte contre les pertes des sols." Bordeaux 4, 1997. http://www.theses.fr/1997BOR40030.
Full textThe phenomenon of erosion, because of its economic and environmental implications, has become one of the major problems confronted by those who manage our natural environment. Erosion is a natural phenomenon which can, however, be accentuated by modern agricultural methods. Soil erosion causes damage not only on an agricultural level, but also in areas unconnected with farming. The most immediate consequences are a reduction in the earth fertility (with all the attendant consequences regarding production and yields), which in return calls for a massive use of fertilisers. The erosion of earth enriched by fertilisers contributes to the deposit of soil particles in lakes and rivers. These products of erosion coming from agricultural land have a negative effet on water supply, on leisure activities, the cost of water treatment and wild life. These are external effects, as they are not taken into account in the farmer's decision-making process when it comes to choosing farming methods. These external costs must therefore be taken into account in the drawing up of soil conservation programmes. These soil conservation programmes also have an impact on farmer's income, prices, agricultural production and water quality
Diallo, Drissa. "Erosion des sols en zone soudanienne du Mali : transfert des matériaux érodés dans le bassin versant de Djitiko (Haut-Niger)." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10142.
Full textKhalil, Tony. "Modélisation du transport réactif en milieux poreux saturé : étude des processus chimio-hydro-mécaniques." Ecole centrale de Nantes, 2011. http://www.theses.fr/2011ECDN0056.
Full textSoil and urban basement may be affected by various pollutants. Indeed, their mobility is governed by different physical and chemical processes of transport and retention / release. The retention tends to reduce the spread of the particles while the release accelerates the transport of particles. Thus, it is necessary to understand the mechanisms of pollutants transport in the soil and to predict the long-term migration. First, we will describe a model of transport and flow in porous and saturated media which is based on PDEs. In addition, these equations refer to the mass transport in saturated and porous medium which is governed generally by the classical convection-dispersion-diffusion equation. Briefly, the equations of flow and transport with effects of viscosity and density are implemented in the codes of differences and finite elements using the software Diffpack. Then, we propose to couple the transport model with internal erosion. Thus, we proposed a mathematical model of internal erosion and we validated it by experimental tests. Similarly, we have shown that erosion has a direct influence on particle transport. This led us to define a coupling between the transport, erosion and pollutants. In addition, the developed model is based on reactive transport that attempts to simulate the process of flow-transportation, physical and chemical reactions. Finally, we attempt to model the effect of the transport of eroded particles on deformable media, with respect to the role of the deformation of the ground
Bah, Abdoul Salam. "Les problèmes d'érosion hydrique et les stratégies de mise en valeur des sols au Mali sud : étude du cas d'une zone libéréee d'onchocercose : le terroir de Fonsébougou." Bordeaux 3, 1992. http://www.theses.fr/1992BOR30005.
Full textIn fonsebougou, souther mali, the soils have suffered from an intense erosion and all the degradations that are entailed it ever since their improsement for agricultural purposes was undertaken, especially for the cultivation of cotton. It is true that their present functioning is closely related of the bioclimate. We first tried to study certain factors of erosion (rock composition, climate, vegetation, soils, etc) through the presentation of the village ground. This is followed by an attempt to understand the water streaming process, the origin and forms or erosion, as well as to asses the impact of antropic facters. An experimental approach has been undertaken on the ground in order to quantify the water streaming, the loss of earth as well as the loss of mineral elements. A computer analysis was based or our findings ; after which we tried to elaborate an equation which would predict future water streaming. We then proposed many strategies among which, that of structural preservation, which should be appreciated in accordance which geomorphology of the land and the water dynamics (rain-water flow). .
Santiago, Romero Hector. "Influence du type d'outil, de la vitesse et de la pente sur l'intensité de l'érosion aratoire." Toulouse, INPT, 2001. http://www.theses.fr/2001INPT001A.
Full textZhong, Chuheng. "Study of soil behavior subjected to an internal erosion process." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT4055.
Full textSuffusion selective erodes the fine particles from the soil matrix. In the process of suffusion, eroded particles are moved by the seepage and filtered by the coarse fraction. This coupled phenomenon will result in the changes in seepage velocity, hydraulic gradient and permeability coefficient and so on. A large device is selected to study the filtration process in internal erosion and the mechanism of suffusion. Thanks to the pressure measuring ports along the rigid wall of the large device, local process of suffusion can be studied. The results from another small device are used to compare with the results of the large device to research the scale effect of the specimen. The basic filtration equation indicates the final state of the filtration process. In the suffusion process, the filtration process ends when the fine content is closed to the value computed by the basic filtration equation. A small number of fine particles can still affect the hydraulic response. Suffusion is a heterogeneous process and the position of the maximum value of the local hydraulic gradient is transferred from upstream to downstream. The grain size of eroded particles becomes huger with the development of the suffusion. And the erosion process can be divided into three stages: « grain adjustment » stage, « seepage stability » stage, and « seepage change » stage. The specimen size has some influence on the erosion process. The criteria based on particle size will lead to a high risk, but energy method is compatible. Combining three erosion laws, three erosion models were formulated based on the mass balance of four assumed constituents: stable fabric of the solid skeleton, erodible fines, fluidized particles, and pure fluid. The finite difference method is used to solve the governing differential equations
Guinle-Thenevin, Isabelle. "Influence des valeurs extrêmes (millennales) des données physiques de l'environnement naturel sur le sol et le proche sous-solApplication aux sites de stockage de déchets." ENSMP, 1998. http://www.theses.fr/1998ENMP0809.
Full textBooks on the topic "Érosion sols"
Shelton, I. J., and G. J. Wall. Indicateur des risques de dégradation des sols: Composante érosion : risques d'érosion des sols au Canada. Ottawa: Agriculture et agroalimentaire Canada, 1998.
Find full textShelton, I. J., and G. J. Wall. Indicator of risk of soil degradation: Erosion component : the risk of soil erosion in Canada. Ottawa: Agriculture and Agri-Food Canada, 1998.
Find full textCommandeur, P. R. Impacts of biomass harvesting on soil disturbance and surface soil erosion at Seller Creek in interior British Columbia. Vancouver: Pacific Forestry Centre, 1993.
Find full textDeybe, Daniel. Politiques agricoles et érosion des sols en Argentine: Une méthodologie pour leur analyse : Daniel Deybe. Montpellier: CIHEAM, Inst. Agronomique méditerranéen, 1989.
Find full textA, Davidson Donald, and Morgan, R. P. C. 1942-, eds. Soil erosion and conservation. Essex, England: Longman Scientific & Technical, 1986.
Find full textCommandeur, P. R. Rainfall simulation, soil infiltration, and surface erosion on skidroad surfaces - Nelson Forest Region. Victoria, B.C: Canadian Forest Service and the British Columbia Ministry of Forests, 1994.
Find full textShukla, Bhagwan S. Watershed, river, and lake modeling through environmental radioactivity. Hamilton, Ont: Environmental Research & Publications, 1993.
Find full textBook chapters on the topic "Érosion sols"
"Sols : érosion hydrique et éolienne." In Compendium des indicateurs agro-environnementaux de l'OCDE, 105–12. OECD, 2014. http://dx.doi.org/10.1787/9789264181243-9-fr.
Full textBensalah, Najoua, Mohamed Sabir, Eric Roose, and Abdellah Laouina. "Indicateurs des risques de ruissellement et d′érosion en vue d′une gestion durable des eaux et sols." In Agro-ressources et écosystèmes, 205–21. Presses universitaires du Septentrion, 2012. http://dx.doi.org/10.4000/books.septentrion.9220.
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