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- W650435057 abstract "The major problem of the wine-growers and collectivities in vineyard in Champagne region is the deterioration of paths by the erosion and its consequence on production costs. Indeed, of the fact of the viticulture modernization some individual arrangements as of the varied coatings, the landfill became place of concentration of the water runoff and caused erosion damages in parcels and source in downstream of an important volume of water. The objective of this work is to integrate in erosion study the landfill and geomorphologic microformes operating on fluxes concurrently. In that way we had developed a method based on G. I. S (geographic information system) SynerGIS from BRGM and it use a Digital Terrain Model (D. T. M. )with a metric steps. This method was applied on a watershed wine-growing, of a 47. 7 ha surface area and where the landfill represent 10. 8% of the total area. Models maps of factors influencing the erosion are achieved in first (slope, curvature of the topographic surface, soil erodability and runoff erosivity. In a second time a typology of the landfill and the linear arrangement was elaborated according to their transverse topographic shape, of the faculty of coatings to the detachment and the individual arrangement capacity to concentrate water. Maps of the linear network according to these classifications are produced. Then, the combination of maps of the network with those of key factors permits to elaborate maps of modified factors by the landfill and improvements. Finally, their crossing leads to a models map of some sensitive zones to the erosion, expressing the effect of the landfill on erosion. After field validation, different results are gotten. The impact of the landfill on the surface water outflow and water erosion was established. The network of landfill , by its field carving, modify the natural physical properties. The landfill reduces the lengh of the slope of side and its coating indented the soil physical characteristics. It is therefore the source of outflow disorderliness : their trajectories are modified and follow the linear network and not the thalwegs. It assures an toboggan effect for the pluvial waters and drag a spatial redistribution of the runoff erosion" @default.
- W650435057 created "2016-06-24" @default.
- W650435057 creator A5043503189 @default.
- W650435057 date "2000-01-01" @default.
- W650435057 modified "2023-09-28" @default.
- W650435057 title "Application des S. I. G. [Systèmes d'information géographique] à l'étude de l'impact de la voirie et des structures linéaires sur l'écoulement et l'érosion hydrique des sols viticoles de Champagne" @default.
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