Dinámica del combustible muerto en formaciones vegetales post-fuego
- Baeza, M.J. 1
- Santana, V.M. 2
- Pausas, J.G. 2
- Vallejo, V.R. 2
- 1 Fundación Centro de Estudios Ambientales del Mediterráneo. Departamento de Ecología (Universidad de Alicante)
- 2 Fundación Centro de Estudios Ambientales del Mediterráneo
- Ezquerra Boticario, Francisco Javier (coord.)
- Rey van den Bercken, Enrique (coord.)
Éditorial: Fundación Patrimonio Natural de Castilla y León
ISBN: 978-84-694-3543-4
Année de publication: 2011
Pages: 63-74
Congreso: Seminario sobre la evolución del paisaje vegetal y el uso del fuego en la Cordillera Cantábrica (1. 2007. León)
Type: Communication dans un congrès
Résumé
During the 20th century many marginal crops have been abandoned, livestock pressure has decreased and, in general, society has changed from using forest fuels as a source of energy to those derived from fossil fuels. In the Mediterranean ecosystems the severe climate condition during summer (prolonged drought and low levels of atmospheric moisture) and large quantities of vegetal materials stimulate fires to catastrophic magnitudes. This study analyses the time capacity for accumulating dead fuels in the medium-long term in species which dominate differerent post-fire transition stages. The total dead fuel percentage values vary greatly between two extremes defined by a group of species, including U. parviflorus and Cistus sp, and another formed by Q. ilex and J. oxycedrus. Transitions between different vegetal communities indicate that we find species with a tendency to accumulate considerable percentages of dead fuel in the first succession stages, while the dominant species follow the opposite model in the more advanced stages.