Evolution annuelle de la récupération sanitaire des arbres du chêne liège après incendie dans le massif forestier de Jijel (Algérie)

Abstract: Post-fire sanitary recovery of cork oak trees confers a marked management
advantage by the return in a minimal time to the production of good cork from the surviving
trees by stripping of the burnt cork. In this study, 828 trees burned in the summer of 2012 were subject to health monitoring for five consecutive years based on the evaluation of the annual capacity of trees to reconstitute their foliar biomass. To identify the main factors contributing to health status, several parameters measured at the tree level have been submitted to multiple logistic regression. The results showed an annual fluctuation in the rate of crown resprouting of trees with a trend towards progressive health improvement. The model developed showed the significant effect of the cork thickness and the trunk state on the health of trees. A period of five years is sufficient to start harvesting burnt cork.