INFLUENCE DES FACTEURS ENVIRONNEMENTAUX ET ANTHROPIQUES SUR LA REGENERATION NATURELLE DU CHENE-LIEGE (Quercus suber) AU NORD-OUEST DE LA TUNISIE DURANT LA PERIODE

JDAIDI Nouri; CHAABANE Abbes; KHEMIRI Imen; HASNAOUI Brahim

JDAIDI Nouri nstitut National Agronomique de Tunis, Tunis-Mahrajène, Tunisie
CHAABANE Abbes nstitut National Agronomique de Tunis, Tunis-Mahrajène, Tunisie
KHEMIRI Imen Laboratoire des Ressources Sylvo-Pastorales de Tabarka, Institut Sylvo-Pastoral de Tabarka, Tunisie
HASNAOUI Brahim Laboratoire des Ressources Sylvo-Pastorales de Tabarka, Institut Sylvo-Pastoral de Tabarka, Tunisie

Keywords: Tunisie, subéraie, inventairespériodiques, facteurs orographiques, teurs anthropiques

Abstract

he present study aims at estimating the evolution of the rate of the natural regeneration of the Tunisian subéraie during period (1983-2009) by basing itself on dendrometric and ecological data. The study of this evolution was realized by the method ofthe periodic inventories (on 1983and 2009).The analysis of the variance of the impact of factors orographic (height, exposure and slope) showed that the height, the exposure and the slope have an effect on the rate of the natural regeneration of the cork oak at the level of the zone ofstudy during period ( 1983-2009).So, and after this study, we noticed that the density of regeneration of this species increases by going away from the closest douars.