A stochastic model for soil moisture dynamics at a point is studied in detail. Rainfall is described as a marked Poisson process, producing a state-dependent infiltration into the soil. Losses due to leakage and evapotranspiration also depend on the existing level of soil moisture through a simplifying but realistic representation of plant physiological characteristics and soil properties. The analytic solution of the steady-state probability distributions is investigated to assess the role of climate, soil, and vegetation in soil moisture dynamics and water balance.

Plants in water-controlled ecosystems: active roles in hydrological processes and response to water stress. II: Probabilistic soil moisture dynamics / Laio, Francesco; Porporato, A.; Ridolfi, Luca; RODRIGUEZ ITURBE, I.. - In: ADVANCES IN WATER RESOURCES. - ISSN 0309-1708. - 24:7(2001), pp. 707-723. [10.1016/S0309-1708(01)00005-7]

Plants in water-controlled ecosystems: active roles in hydrological processes and response to water stress. II: Probabilistic soil moisture dynamics

LAIO, FRANCESCO;RIDOLFI, LUCA;
2001

Abstract

A stochastic model for soil moisture dynamics at a point is studied in detail. Rainfall is described as a marked Poisson process, producing a state-dependent infiltration into the soil. Losses due to leakage and evapotranspiration also depend on the existing level of soil moisture through a simplifying but realistic representation of plant physiological characteristics and soil properties. The analytic solution of the steady-state probability distributions is investigated to assess the role of climate, soil, and vegetation in soil moisture dynamics and water balance.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1404895
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