Abstract
Stochastic modelling of soil erosion is based on calculation of the
probability of soil particle detachment, which is the probability of excess of driving forces above resistance forces. These probability calculations require the probability distribution functions (PDFs) for the main hydrodynamic and soil structure characteristics, estimated experimentally or theoretically. The field of hydrodynamic forces (flow velocities and pressure distribution though space and time) is calculated with Large Eddy Simulation. Soil structure is estimated in terms of Kolmogorov’s probabilistic approach to soil failure and aggregation. The PDF approach explicitly describes the process of soil erosion and gives a theoretical explanation of the great diversity in empirical relationships between erosion rate and main erosion factors.
probability of soil particle detachment, which is the probability of excess of driving forces above resistance forces. These probability calculations require the probability distribution functions (PDFs) for the main hydrodynamic and soil structure characteristics, estimated experimentally or theoretically. The field of hydrodynamic forces (flow velocities and pressure distribution though space and time) is calculated with Large Eddy Simulation. Soil structure is estimated in terms of Kolmogorov’s probabilistic approach to soil failure and aggregation. The PDF approach explicitly describes the process of soil erosion and gives a theoretical explanation of the great diversity in empirical relationships between erosion rate and main erosion factors.
| Original language | English |
|---|---|
| Title of host publication | Sediment Transfer through the Fluvial System |
| Subtitle of host publication | Proceedings of a symposium held in Moscow, August 2004 |
| Editors | Valentin Golosov, Vladimir Belyaev, Des E. Walling |
| Place of Publication | Sediment Transfer through the Fluvial System, Edited by Valentin Golosov, Vladimir Belyaev & Des E. Walling, IAHS Publ. 288 (August 2004) ISBN 1-901502-57- |
| Pages | 345-353 |
| Number of pages | 8 |
| Publication status | Published - 2004 |