Distribution spatiale des dépôts rudéraux (graviers de brousse)
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Distribution spatiale des dépôts rudéraux (graviers de brousse)

Distribution spatiale des dépôts rudéraux (graviers de brousse)


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About the Book

La littérature et la recherche sur plusieurs aspects des sols tropicaux, en particulier en Afrique, n'ont pas été mises à jour ou documentées. La technologie d'aujourd'hui dépend dans une large mesure de la disponibilité de données et d'informations de base, en particulier dans le domaine des sciences géophysiques. Dans ce travail, les dépôts de matériaux rudéraux (graviers de brousse) dans les Alfisols des zones de gouvernement local de Girei de l'État d'Adamawa ont été identifiés et géolocalisés à l'aide du GPRS. L'extraction de ces matériaux se fait à petite et grande échelle par excavation manuelle et triage par les populations locales pour des raisons économiques. Il faut environ deux semaines à une équipe de 2 à 3 personnes pour creuser et trier un chargement de camion de 4 mètres cubes. La caractérisation morphologique et physique des dépôts rudéraux a été effectuée et leur coefficient d'uniformité Cu = D60/D10 et leur coefficient de courbure Cc = (D30)2/D10 x D60 ont été calculés. Les calculs géospatiaux des zones de dépôts approximatifs ont été cartographiés en supposant un rayon tampon de 500 m autour des sites d'excavation à l'aide d'ArcGIS. Des fiches de données spécifiques aux sites de la zone d'étude sont présentées. Les résultats suggèrent un mélange diversifié de toutes les tailles de formes sur tous les sites.


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Product Details
  • ISBN-13: 9786208559304
  • Publisher: Editions Notre Savoir
  • Publisher Imprint: Editions Notre Savoir
  • Height: 229 mm
  • No of Pages: 52
  • Returnable: N
  • Spine Width: 3 mm
  • Width: 152 mm
  • ISBN-10: 6208559308
  • Publisher Date: 16 Jan 2025
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Returnable: N
  • Weight: 136 gr


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