Plants in water-controlled ecosystems: Active role in hydrologie processes and responce to water stress II. Probabilistic soil moisture dynamics

F. Laio, Amilcare Michele M. Porporato, L. Ridolfi, I. Rodriguez-Iturbe

Research output: Contribution to journalArticlepeer-review

503 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)707-723
Number of pages17
JournalAdvances in Water Resources
Volume24
Issue number7
DOIs
StatePublished - Jul 1 2001

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

Keywords

  • Crossing analysis
  • Ecohydrology
  • Grasslands
  • Hydrology
  • Savannas
  • Soil moisture
  • Stochastic processes
  • Vegetation
  • Water balance
  • Water stress

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