Face à la sécheresse et à la pénurie d’eau, quelles mesures pour ajuster la demande agricole à l’offre de ressource en eau ?
Résumé
Since 2003, Center-West and South-West of France are regularly affected by drought events (either edaphic or hydrologic) with dramatic consequences on yield, irrigation water use and farmer’s net income. To cope with drought and irrigation water shortage, different strategies are available : (i) fitting water offer to agricultural demand through the mobilisation of new resources ; (ii) fitting water demand to resource offer by genetic, agronomic, regulatory, and socio-economic measures ; (iii) developing local and participative water management programs ; (iv) compensating production or income losses through public subsidies or private insurance systems. In this communication, we present some conclusions drawn from the recent scientific joint expertise conducted by INRA on “Drought and Agriculture” in 2006. Case studies from Poitou-Charentes and Midi-Pyrénées regions were selected.
Mots clés
DROUGHT
YIELD
IRRIGATION
WATER
STRATEGY
FITTING
WATER MANAGEMENT
PRODUCTION
SYSTEMS
IRRIGATION DURABLE
SURFACE IRRIGUEE
PERIMETRE IRRIGABLE
IRRINOV
MODERATO
PILOTAGE D'IRRIGATION
EFFICIENCE D'IRRIGATION
MANAGEMENT
AGRONOMIE
HYDROLOGIE
HYDRAULIQUE
RESSOURCE EN EAU
SECHERESSE HYDROLOGIQUE
STRATEGIE AGRICOLE
MAITRISE DE L'IRRIGATION
REGULATION DE L'EAU
SYSTEME NON IRRIGUE
CONDITION THERMIQUE
SITUATION HYDRAULIQUE
CAMPAGNE D'IRRIGATION
LORA
PARCOURS D'IRRIGATION
PROGRAMME D'IRRIGATION
CONSEIL DE MASSE
CONDUITE IRRIGUEE
GASPILLAGE
PERTE EN EAU
RESTRICTION
SYSTEME IRRIGUE
CONTRAINTE HYDROLOGIQUE