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Influence of water and terpenes on flammability in some dominant Mediterranean species.

AuthorsAlessio, Giorgio A. ; Peñuelas, Josep; Llusia, Joan; Ogaya, Romá; Estiarte, Marc; De Lillis, M.
KeywordsQuercus ilex
Rosmarinus officinalis
Arbutus unedo
Cistus albidus
Emission and content of volatile compounds
Erica multiflora
Globularia alypum
Phillyrea latifolia
Pinus halepensis
Pistacia lentiscus
Issue Date2008
PublisherCSIRO Publishing
CitationInternational Journal of Wildland Fire 17 (2) : 274-286 (2008)
AbstractIn the Mediterranean basin, fires are a major concern for forest and shrubland ecosystems. We studied flammability, its seasonality and its relationship with leaf moisture and volatile terpene content and emission in the dominant species of a Mediterranean shrubland and forest in Catalonia (NE Iberian Peninsula). We measured temperatures and time elapsed between the three flammability phases: smoke, pyrolysis and flame, for four seasons. We sampled twice in spring because of an occasional drought period during this season. Flammability had a significant relationship with leaf hydration, in the shrubland and in the forest. Few and only weak correlations were found between terpene content and flammability. In the future, arid conditions projected by climatic and ecophysiological models will increase fire risk through decreased hydration and subsequent increased flammability of the species.
Description13 páginas, 4 tablas, 13 figuras.
Publisher version (URL)http://dx.doi.org/10.1071/WF07038
Appears in Collections:(CEAB) Artículos
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