DARBOUX , Frédéric

Landuse organisation in Mediterranean France tends to follow a typical pattern where large flat coastal areas are densely urbanised and oriented toward summer tourism, inland alluvial plains are dedicated to vineyards for wine making, and hilly areas surrounding inland plains are occupied by forests and isolated housing. This spatial...

Forest fires can alter several soil properties influencing soil erosion and runoff processes in addition to removing all or part of the vegetative cover. These include organic matter content, aggregate stability and water repellency. Soil erodibility and saturated hydraulic conductivity depend on these properties and their response varies...

Soil conservation is a major concern for catchments affected by forest fires. The lack of vegetation cover and the development of soil water repellency increase the risk of topsoil erosion. This paper evaluates two soil conditioners (a wetting agent and a polyvinyl acetate) for limiting overland flow and erosion in inter-rill areas. Unburned...

International audience

Major forest fires occur periodically in the Mediterranean environment. The impact of forest fires on soil erosion and runoff processes has been studied extensively, and it has been demonstrated that the first months after a fire represent a high risk period. Erosion control strategies must be established in the weeks following a forest fire to...

The combustion of vegetation during forest fires can lead to the condensation of hydrophobic compounds on mineral matter near the soil surface. The resulting water repellent layer then inhibits water infiltration by altering soil hydraulic conductivity and the water content–soil matric suction relationship. This situation resembles that of a...

Because of their capability to preserve steady-states, well-balanced schemes for Shallow Water equations are becoming popular. Among them, the hydrostatic reconstruction proposed in [1], coupled with a positive numerical flux, allows to verify important mathematical and physical properties like the positivity of the water height and, thus, to...

International audience

Numerical simulations of flows are required for numerous applications, and are usually carried out using shallow water equations. We describe the FullSWOF software which is based on up-to-date finite volume methods and well-balanced schemes to solve this kind of equations. It consists of a set of open source C++ codes, freely available to the...

International audience