Facteurs affectant l'utilisation des ressources halieutiques dans le lac Ziway, Éthiopie
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Facteurs affectant l'utilisation des ressources halieutiques dans le lac Ziway, Éthiopie

Facteurs affectant l'utilisation des ressources halieutiques dans le lac Ziway, Éthiopie


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About the Book

Le lac Ziway, en Éthiopie, est un lac d'eau douce qui provient principalement des pluies et des deux rivières qui le traversent, la rivière Ketar qui coule au nord-est et la rivière Meki qui coule à l'extrémité nord du lac. Ces deux rivières sont pérennes et leurs bassins versants couvrent 5610 km2. Ils avaient autrefois des débits de base importants, qui ont toutefois diminué en raison de prélèvements d'eau incontrôlés pour des projets d'irrigation à petite échelle dans les parties supérieures des bassins versants. La rivière Bulbula est le principal exutoire du lac qui se déverse dans le lac terminal, le lac Abijata. La différence annuelle entre le débit sortant et le débit entrant du lac Ziway est de 74 millions de m3, ce qui impliquerait une baisse annuelle moyenne du niveau du lac Ziway d'environ 15 cm.


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Product Details
  • ISBN-13: 9786207178438
  • Publisher: KS Omniscriptum Publishing
  • Binding: Paperback
  • Language: French
  • Returnable: N
  • Weight: 141 gr
  • ISBN-10: 6207178432
  • Publisher Date: 20 Feb 2024
  • Height: 229 mm
  • No of Pages: 52
  • Spine Width: 3 mm
  • Width: 152 mm


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