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Research Article

Préservation des étiages par des méthodes originales de tarification de l’eau d’irrigation

Low-water protection by original irrigation pricing methods

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Pages 41-46 | Published online: 29 Jan 2013
 

Abstract

L’eau d’irrigation est, au niveau international, au coeur de trois défis concernant la maîtrise des risques : risques environnementaux, par exemple ceux liés à une baisse excessive du débit de cours d’eau, risques économiques, pour n’en citer qu’un, la possibilité de baisse importante du revenu agricole en cas de sécheresse, risques alimentaires lorsque c’est le volume de la production agricole qui est en danger. Différentes méthodes de répartition de l’eau d’irrigation, fondées sur des méthodes de tarification adaptées, permettent d’améliorer la situation pour ces trois dimensions, notamment en cas de sécheresse. Nous les présentons et les comparons entre elles.

The irrigation water is, at the international level, in the heart of three challenges concerning risk control: environmental risks, for example those bound to an excessive flow reduction of the water courses, harmful for the environment, the economic risks, for example of important reduction in the agricultural income in case of drought, food risks when it is the volume of the agricultural production which is in danger. Various methods of irrigation water allocation, based on adapted non linear pricing methods, allow improving the situation of these three variables, in particular in case of drought. We present them and compare their effects.

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