Typologie et dynamique forestières: Un exemple en Barousse (Hautes Pyrénées)

Abstract

An ecological analysis of the Pyrenean beech groves (Barousse) points to hydric conditions as the main factor determining different ecological units on a same geological substratum. This approach, completed by the historical research that brings to light the manmade actions in the fir elimination of this area, can in part generate the knowledge of the real potential forestry (Fir-Beech, Fir). The structural analysis of stands, disturbed in the past by overexploitation, indicates that the upper stratum has closed, and that, often through pioneer phases, these woods have extended their area.