It is extremely important to understand the organization of the natural landscapes since it is layout determines and coordinates its flux. However, the natural environment is so complex that building a model to understand it is quite hard. In fact, there are so many different landscape arrangements and possible dynamics that constructing models...
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2011 (v1)Journal articleUploaded on: December 3, 2022
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December 12, 2006 (v1)Publication
Several hydrological models are currently in use for predicting floods at the catchment outlet. These vary from lumped rainfall-runoff models which ignore flow processes in the catchment to distributed process-based models which attempt to quantify lateral and vertical fluxes. Few of these models integrate extensive field work and most are...
Uploaded on: December 3, 2022 -
2004 (v1)Journal article
A soil erosion risk map is an essential tool for soil conservation planning. It provides a general view of erosion problems and permits the identification of sectors requiring an emergency intervention. The erosion risk map produced in this study results from the spatialisation of the « Revised Universal Soil Loss Equation » (RUSLE). The...
Uploaded on: December 4, 2022 -
2004 (v1)Journal article
Une carte du risque érosif est un outil indispensable dans une démarche de lutte contre l'érosion. Elle permet en effet d'avoir une vue d'ensemble des problèmes et donc de localiser les secteurs nécessitant une intervention prioritaire. La carte des risques réalisée dans cette étude résulte de la spatialisation de la Revised Universal Soil Loss...
Uploaded on: December 4, 2022 -
June 24, 2006 (v1)Conference paper
Comprendre l'organisation spatiale du milieu naturel est d'une grande importance en hydrologie puisque c'est son agencement qui impose les mécanismes qui génèrent et dirigent les flux hydriques. En cela, une cartographie des chemins de l'eau dans le milieu naturel s'avère être un outil intéressant pour expliquer le devenir de l'eau dans un...
Uploaded on: December 4, 2022 -
June 1, 2006 (v1)Conference paper
Several hydrological models are currently in use for predicting floods at the catchment outlet. These vary from lumped rainfall-runoff models which ignore flow processes in the catchment to distributed process-based models which attempt to quantify lateral and vertical fluxes. Few of these models integrate extensive field work and most are...
Uploaded on: December 3, 2022 -
2004 (v1)Journal article
Effective erosion control requires both a sound understanding of the physical context and sufficient motivation on the part of farmers to act, and in Europe this almost inevitably depends on financial subsidies. In south-west France, intense spring and summer storms lead to large scale sediment deposition on roadways, and cleanup costs are a...
Uploaded on: December 3, 2022 -
March 15, 2011 (v1)Publication
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...
Uploaded on: December 4, 2022 -
2006 (v1)Journal article
Dans le Sud-Est de la France, la vigne représente l'activité agricole dominante et une stratégie de lutte contre l'érosion nécessite une connaissance de sa répartition spatiale dans le parcellaire viticole. L'objectif de notre étude était d'élaborer une méthode de cartographie à partir de mesures d'érosion sur un secteur référence. Si les...
Uploaded on: December 4, 2022 -
2005 (v1)Journal article
Découper le milieu naturel en unités « homogènes » respectant son agencement n'est pas chose facile. En effet, les différents substrats rocheux rencontrés, la multitude des sols, la diversité des formations végétales et l'action des hommes font que le milieu naturel connaît d'importantes variations latérales et verticales. Le milieu naturel...
Uploaded on: December 3, 2022 -
September 2009 (v1)Conference paper
It is well known that wind plays a major role in forest fire propagation. However, the fire itself strongly influences wind characteristics by accelerating wind speeds near the flames. This phenomenon has been observed by fire fighters but rarely quantified. The objective of the study was to measure changes in wind characteristics during field...
Uploaded on: December 3, 2022 -
November 21, 2006 (v1)Conference paper
Maîtrise de l'érosion hydrique des sols cultivés phénomènes physiques et dispositifs d'action. Journées d'échanges et prospectives. De la recherche des sols à la décision publique : le programme Gessol (Gestion Durable des Sols), un support à la Directive Cadre sur la Protection des Sols
Uploaded on: December 4, 2022