Evaluation of the Aerial Biomass of Three Sahelian Species in the Ferlo (North Senegal): &amp;lt;i&amp;gt;Acacia tortilis&amp;lt;/i&amp;gt; (Forsk.) Hayn essp. Raddiana (Savi) Brenan, &amp;lt;i&amp;gt;Acacia senegal&amp;lt;/i&amp;gt; (L.) Willd and &amp;lt;i&amp;gt;Balanites aegyptiaca&amp;lt;/i&amp;gt; (L.) Del
Open journal of ecology