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- W2120916435 abstract "L’aridite climatique et la pression anthropique sont a l’origine de la regression de nombreux ligneux en zone soudanienne. Afzelia africana, Bombax costatum, Boswellia dalzielii et Pterocarpus erinaceus sont des especes multi-usages tres appreciees, mais menacees de disparition dans la region est du Burkina Faso. Un diagnostic de l’etat de leur population a ete fait sur la base de l’analyse des classes de diametre et du suivi de la regeneration naturelle non assistee dans des placeaux permanents. Les quatre especes montrent une declinaison demographique caracterisee par le vieillissement des peuplements et des difficultes de regeneration, aussi bien au niveau de l’etablissement que du developpement des jeunes plants. Des formes de regeneration vegetative par drageons et tubercules ligneux souterrains ont ete mis en evidence respectivement chez B. costatum et B. dalzielii, d’une part, et chez A. africana et P. erinaceus, d’autre part. La croissance lente des jeunes plants pourrait constituer la principale difficulte endogene de regeneration de ces especes en milieu naturel semi-aride perturbe." @default.
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- W2120916435 date "2006-12-01" @default.
- W2120916435 modified "2023-10-17" @default.
- W2120916435 title "Diagnostic de l’état de dégradation des peuplements de quatre espèces ligneuses en zone soudanienne du Burkina Faso" @default.
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- W2120916435 doi "https://doi.org/10.1684/sec.2006.0058" @default.
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