Causes et conséquences des feux de forêts sur la production du liège dans les subéraies du Nord-Est algérien

Abstract

The assessment of forest fires (1975-2013) established in the mountains of Eastern Algeria, shows that the cork oak remains the essence most affected compared to other species, with a burned area of 126,412.88 ha (48%). This region is highly affected by wildfires since recorded a cumulative 18,732 fires, degrading a total forest area of 635,471.55 hectares. The causes attributed to the outbreak of fires are divers . But it seems that the climate factor is the root cause of all disasters. The floristic forest also has a great influence on the development of fire. While 70% of registered claims originate from the human factor. Analysis of the impact of forest fires shows that there is a strong negative correlation between the production of cork, the starting number of fires and the area burned. Examining the evolution of the cork oak survival after passage of fire revealed as snuff into account in forest Collo observations stations, the rate of tree mortality is based on their age so démasclage bark cork. On the other hand during the recovery of our parcels covered by the fires was addressing the themes of economic type and forest type and the choice of intervention was so as to seek the restoration of the tree layer using crop sizes performed immediately after the passage of the fire, with priority to the cork forests and future productions.