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Caractérisation et gestion de ligneux fourragers dans les systèmes de production agro-pastorale du terroir de Dankana en zone Sud soudanienne du Burki
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ISBN10: 3640972724
ISBN13: 9783640972722
Publisher: Grin Verlag
Published: Aug 4 2011
Pages: 92
Weight: 0.29
Height: 0.22 Width: 5.83 Depth: 8.27
Language: French
ISBN13: 9783640972722
Publisher: Grin Verlag
Published: Aug 4 2011
Pages: 92
Weight: 0.29
Height: 0.22 Width: 5.83 Depth: 8.27
Language: French
Thèse de Master de l'année 2004 dans le domaine Biologie - Ecologie, cours: Biologie et Ecologie Végétales, langue: français, résumé La production foliaire des ligneux fourragers est généralement ignorée bien que l'on reconnaisse le rôle non négligeable de ces fourrages dans l'alimentation du bétail. En saison sèche elle est d'une importance primordiale par l'apport protéique qu'elle représente, permettant souvent au bétail de survivre. La présente étude qui porte sur la caractérisation et la gestion de ligneux fourragers établit une relation logarithmique entre la production foliaire et un paramètre physique facile à mesurer (circonférence du tronc, diamètre du houppier, hauteur totale) chez Afzelia africana, Daniellia oliveri, Ficus sycomorus, Pterocarpus erinaceus et Sterculia setigera. Cette relation permet l'estimation de la biomasse foliaire. Nous identifions la gestion des principaux ligneux fourragers (Afzelia africana, Faidherbia albida, Ficus sycomorus et Pterocarpus erinaceus) du terroir de Dankana. La régénération de ces espèces est compromise par les différentes utilisations et systèmes de production. Des raisons écologiques convaincantes appellent une stratégie globale de gestion du terroir.
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