Hydraulic diffusivity is fundamental to the study of a natural forestry site. Complementary field and laboratory experiments were carried out to identify hydraulic diffusivity. A transient physical process of water transport is required for this, for which a dynamic imbibition experiment was chosen. Time variations of moisture content are measured at various locations by dual-energy gamma ray attenuation. The diffusion transport occurring in this experiment has been described by the classical diffusion equation in terms of the Boltzmann variable with various models of non-linear diffusivity. An inverse method is then applied to determine the parameters of the hydraulic diffusivity model.
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- Identification of the Hydraulic Diffusivity of a Soil by Inverse Method with Dual-Energy Gamma Ray Attenuation Measurements
- Springer Netherlands
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