Noise-induced vegetation patterns in fire-prone savannas

Paolo D'Odorico, Francisco Laio, Amilcare Porporato, Luca Ridolfi, Nicolas Barbier

Research output: Contribution to journalArticle

37 Scopus citations

Abstract

The high degree of spatial organization of dryland vegetation has been often explained invoking a number of different deterministic mechanisms without ever explicitly addressing the role of noise in the process of pattern formation. Noise is usually believed to act on ecosystems as a source of disorganized random fluctuations. However, noise is also known for its ability to induce ordered states in nonlinear systems. An alternative mechanism is here proposed, which explains vegetation pattern formation in mesic and subhumid savannas as the joint effect of fire randomness and fire-vegetation feedbacks. This mechanism is purely noise-induced and has no deterministic counterpart.

Original languageEnglish (US)
Article numberG02021
JournalJournal of Geophysical Research: Biogeosciences
Volume112
Issue number2
DOIs
StatePublished - Jun 28 2007

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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