Draft report on savanna afforestation in Africa.

afforestation bois capital productivity ciencias forestales collecte de semences costos costs dynamique des populations ecologia ecologie ecology economic situation ensemencement especies forest plantations foresterie forestry intereses del capital inversiones investissement investment living standards madera methode methods niveau de vie nivel de vida plantation planting population dynamics production data rendement rendimiento sabanas savane seed collection siembra site factors sowing species wood yields