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Cadre hydrogéologique et hydrochimique des eaux souterraines peu profondes
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ISBN10: 6630263367
ISBN13: 9786630263367
Publisher: Editions Notre Savoir
Published: Aug 13 2026
Pages: 116
Weight: 0.36
Height: 0.28 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786630263367
Publisher: Editions Notre Savoir
Published: Aug 13 2026
Pages: 116
Weight: 0.36
Height: 0.28 Width: 6.00 Depth: 9.00
Language: French
Il ne fait aucun doute que l'eau est l'un des facteurs de production les plus importants dans l'agriculture ghanéenne, après la main-d'oeuvre. Plus important encore, la quasi-totalité de la production agricole dépend des précipitations naturelles. Par conséquent, les rendements agricoles sont invariablement faibles, car les pluies sont très irrégulières. L'exploitation des eaux souterraines à des fins d'irrigation mérite donc d'être sérieusement envisagée, car celles-ci représentent environ 30,1 % de l'eau douce disponible sur Terre. L'utilisation potentielle des eaux souterraines peu profondes pour l'irrigation à petite échelle pendant la saison sèche est un enjeu majeur pour le développement de l'irrigation dans la zone aride du Ghana. Les agriculteurs du sous-bassin d'Atankwidi, au sein du bassin de la Volta Blanche, recourent de plus en plus aux eaux souterraines comme source d'irrigation en raison de l'indisponibilité des eaux de surface pendant la saison sèche; d'où la nécessité d'étudier leur disponibilité et leur aptitude à l'irrigation afin de garantir la durabilité de leur utilisation et une éventuelle extension dans la région. La géométrie de l'aquifère dans le sous-bassin d'Atankwidi a donc été délimitée avec succès à l'aide de techniques géophysiques (VES et EM). La qualité (adéquation) des eaux souterraines pour l'irrigation a également été déterminée avec succès.
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