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La degradation forestiere provoque la perte de carbone et contribue indirectement au changement climatique. Afin d’evaluer la contribution du massif forestier de l’Ecole Nationale des Eaux et Forets (ENEF) a l’attenuation du changement climatique, une etude d’estimation du stock de carbone a ete menee. Dans cette etude, la quantite de carbone ligneux a ete estimee dans des placettes carrees de 900 m2 pour la savane, 400 m2 pour la plantation de Tectona (P Teck) et 2500 m 2 en zone agroforestiere (Z Agf). L’equation de type polynomial et le modele allometrique ont ete utilises pour l’evaluation du stock de carbone. Dans la savane, le carbone stocke dans la biomasse epigee s’eleve a 17,66 ± 22,05 tC/ha et celui de la biomasse hypogee ainsi que de la vegetation herbacee ont ete respectivement de 2,28 ± 2,41 tC/ha et de 1,39 ± 0,61 tC/ha. Au niveau de la plantation de teck et de la zone agroforestiere, les quantites de carbone contenues dans la biomasse aerienne ligneuse ont ete respectivement de 54,38 ± 12,04 tC/ha et 2,50 ± 3,28 tC/ha contre 7,09 ± 1,40 tC/ha et 0,35 ± 0,42 tC/ha dans les racines. Cette etude contribue a la comprehension de l’apport de la savane, de la plantation et du systeme agroforestier ; a la sequestration du carbone. Des actions de renforcement du potentiel ligneux de cet ecosysteme s’imposent pour minimiser la degradation de ce site a long terme et afin qu’il soit une source durable de sequestration du carbone. . Mots cles : Biomasse, stock de carbone, changement climatique, savane, zone soudanienne, Burkina Faso. Forests degradation causes carbon loss and contributes indirectly to climate change. In order to estimate the contribution of the forest of ENEF (called Ecole Nationale des Eaux et Forets) forest in the mitigation of climate change, a work based on carbon stock in the forest was implemented. In this study, the quantity of ligneous carbon was estimated in some squares of 900 m 2 for the savannah, 400 m 2 for the Tectona plantation (P Teck) and 2500 m2 for the agroforestry area (Z Agf). The equation polynomial and the allometric standard were used to evaluate carbon storage. In savannah, the carbon stocked in above ground biomass was 17.66 ± 22.05 tC/ha. The contribution roots and herbaceous is respectively 2.28 ± 2.41 tC/ha and 1.39 ± 0.61 tC/ha. In teak plantation and agroforestery land, the carbon stocked in AGB was respectively 54.38 ± 12.04 tC/ha and 2.50 ± 3.28 tC/ha. Concerning the roots, it is respectively 7.09 ± 1.40 tC/ha and 0.35 ± 0.42 tC/ha. The actions to strengthen the wood potential of this ecosystem are needed to minimize the degradation of this site in the long term and to be a source of carbon sequestration. Keywords : Biomass, carbon storage, climate change, savannah, soudanian zone, Burkina Faso.

international journal of biological and chemical sciences

Quantification de la Biomasse et stockage du carbone du massif forestier de l’Ecole Nationale des Eaux et Forêts de Dindéresso province du Houet au Burkina Faso