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Analyse des pratiques, modélisation et aide à la décision dans le domaine de l'irrigation [Cas de la gestion d'une retenue collinaire collective à la Réunion ]

Author

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  • Sylvain Perret
  • Pierre-Yves Le Gal

Abstract

[fre] Des ressources collectives en eau d'irrigation très limitées amènent les acteurs à négocier l'établissement de règles de partage et de gestion communes. Une étude a été conduite à la Réunion, sur un projet de retenue collinaire collective, dont l'objectif était d'aider les acteurs à mieux définir les relations offre- demande en eau et les risques de pénurie, puis à tester différentes règles de partage. Cet article présente la méthodologie employée, associant étroitement (i) analyse des pratiques individuelles des irrigants, (ii) élaboration d'outils de modélisation et de simulation des consommations individuelles, et de l'offre en eau selon différents scénarios climatiques, et (iii) discussion des résultats avec le groupe d'acteurs locaux. [eng] Practice analysis, modelling and decision support in irrigation : the management of a collective reservoir in La Réunion . A limited collective resource of irrigation water gets actors to negociate common rules of distribution and management. A study has been conducted in La Réunion on a collective reservoir project, to help farmers to better define the supply-demand relationships of water and the risks of shortage, and to test various rules of distribution. This paper presents the methodology used, which closely associates (i) analysis of the individual farmers' irrigation practices, (ii) design of tools for modelling and simulation of the individual water consumptions and the water supply dynamic according to various climatic scenarios, and (iii) discussion of the results with the farmers' group.

Suggested Citation

  • Sylvain Perret & Pierre-Yves Le Gal, 1999. "Analyse des pratiques, modélisation et aide à la décision dans le domaine de l'irrigation [Cas de la gestion d'une retenue collinaire collective à la Réunion ]," Économie rurale, Programme National Persée, vol. 254(1), pages 6-11.
    • Handle: RePEc:prs:recoru:ecoru_0013-0559_1999_num_254_1_5132
    DOI: 10.3406/ecoru.1999.5132
    Note: DOI:10.3406/ecoru.1999.5132
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    References listed on IDEAS

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    1. Jean-Marie Attonaty & Louis-Georges Soler, 1991. "Des modèles d'aide à la décision pour de nouvelles relations de conseil en agriculture," Économie rurale, Programme National Persée, vol. 206(1), pages 37-45.
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    1. Le Gal, Pierre-Yves & Papy, Francois, 1998. "Co-ordination processes in a collectively managed cropping system: Double cropping of irrigated rice in Senegal," Agricultural Systems, Elsevier, vol. 57(2), pages 135-159, June.

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