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In Senegal, and especially in the ground- nut basins, woodlands and pastures lying between villages are being overex- ploited and are at risk of disappearing with the extension of croplands and uncontrolled wood-cutting for firewood and charcoal. Local populations have been attempting to counter the risk by restricting access to these lands to promote conservation and land rehabilitation. This study assesses the process of reconstitution of the vegetation in the village woodland and grazing reserves cre- ated. It was conducted in the southern groundnut basin in sites where reserves have been in place for one, five and twelve years. The results of the inventory show lower species diversity in the one year-old stands, with 27 distinct species, than in the other two age categories, where some 50 different species were found. The analysis of variance of the structural parameters shows a significant difference in the average diameter and height of trees according to the age of the three stand types. After five years, the diameter curve for the trees is L-shaped, reflecting the regular dynamics of a young tree stand, while the curve after twelve years has the characteristic bell shape of woodlands reaching a state of equilibrium. Regeneration capacities are high in all of the reserved lands, indicat- ing good prospects for the restoration of these degraded natural woodlands.

Dynamique de la végétation ligneuse des espaces sylvo-pastoraux villageois mis en défens dans le Sud du Bassin arachidier au Sénégal