Fuel age, weather and burn probability in Portugal

  • Fernandes P
  • Loureiro C
  • Magalhes M
 et al. 
  • 38

    Readers

    Mendeley users who have this article in their library.
  • 22

    Citations

    Citations of this article.

Abstract

The relative influence of the factors acting on burn probability, namely fuel and weather, is not well understood, especially in Europe. We use a digital fire atlas (1975–2008) and apply survival analysis to individual fires (1998–2008) to describe how burn probability changes with fuel age in Portugal. The typical fire return interval and median fire-free interval vary regionally from 23 to 52 and 18 to 47 years. Increase of the hazard of burning with time is generally near-linear, denoting moderate fuel-age dependency, as in some other shrub-dominated Mediterranean environments. Analysis of complete fire intervals resulted in shorter fire return interval and higher fuel-age dependency of burn probability than findings that included censored observations. Increasingly severe weather conditions either expressed through fire size or by extreme fire danger concurrently decreased fuel-age dependency and selected older fuels. The results are discussed from the viewpoints of fire suppression and fuel treatments.

Author-supplied keywords

  • Mediterranean-type ecosystems
  • fire frequency analysis
  • fire regimes
  • shrubland

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Paulo FernandesUniversidade de Trás-os-Montes e Alto Douro

    Follow
  • Carlos Loureiro

  • Marco Magalhes

  • Pedro Ferreira

  • Manuel Fernandes

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free