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Le sorgho de décrue dans la vallée du Sénégal

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  • Xavier Le Roy

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    (Dynamiques environnementales entre forêt, agriculture et biodiversité : des pratiques locales sur la nature aux politiques de conservation - IRD)

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    Abstract

    Quelle est la singularité du sorgho de décrue dans la vallée du fleuve Sénégal ? Permettant une utilisation différée de l'abondance en eau, il se distingue d'autres contextes par l'absence de repiquage et par un cycle cultural exclusivement en saison sèche. Cette pratique millénaire semble échapper aux mutations agraires, reflétant une stricte hiérarchie sociale et observant un itinéraire technique immuable. Alors que vingt années de sécheresse et l'introduction de l'agriculture irriguée semblaient le condamner, le sorgho de décrue ressurgit en 1994, démontrant l'attachement des populations de la moyenne vallée à cette production sans risque économique. Toutefois, la mise en route des turbines au barrage de Manantali accentue l'incertitude et la variabilité qui les caractérisent les cultures de décrue.

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    Bibliographic Info

    Paper provided by HAL in its series Working Papers with number ird-00179486.

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    Date of creation: 15 Oct 2007
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    Handle: RePEc:hal:wpaper:ird-00179486

    Note: View the original document on HAL open archive server: http://hal.ird.fr/ird-00179486/en/
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    Web page: http://hal.archives-ouvertes.fr/

    Related research

    Keywords: SORGHO ; CULTURE DE DECRUE ; RECOLTE ; SAISON SECHE ; HISTOIRE ; SYSTEME DE PRODUCTION ; BARRAGE ; DROIT COUTUMIER ; ACCES A LA TERRE ; CULTURE IRRIGUEE ; AGRICULTURE TRADITIONNELLE ; REVENU AGRICOLE ; SARCLAGE ; GESTION DE L'EAU ; TENURE FONCIERE ; HIERARCHIE SOCIALE ; SENEGAL ; FLEUVE SENEGAL VALLEE ; MANANTALI BARRAGE;

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