Graveline N., Mérel P. (2014). Intensive and extensive margin adjustments to water scarcity in France's Cereal Belt. European review of agricultural economics [Papier], 01/12/2014, vol. 41, n. 5, p. 707-743.
https://doi.org/10.1093/erae/jbt039
https://doi.org/10.1093/erae/jbt039
Titre : | Intensive and extensive margin adjustments to water scarcity in France's Cereal Belt (2014) |
Auteurs : | N. Graveline ; P. Mérel |
Type de document : | Article |
Dans : | European review of agricultural economics [Papier] (vol. 41, n. 5, December 2014) |
Article en page(s) : | p. 707-743 |
Langues : | Anglais |
Langues du résumé : | Anglais |
Catégories : |
Thésaurus IAMM EAU DISPONIBLE ; IRRIGATION ; EFFICIENCE D'UTILISATION DE L'EAU ; METHODE D'OPTIMISATION ; MODELE ECONOMETRIQUE ; CEREALICULTURE ; BEAUCE ; FRANCECatégories principales 7.3 - Eau. Gestion de l'Eau ; 07 - ENVIRONNEMENT |
Résumé : | Efficient water management in agriculture is becoming critical due to increasing environmental constraints and global food and bio-energy demands. Farmers may respond to increased water scarcity along three main adjustment margins: a move towards rain-fed agriculture (super-extensive margin) or towards less water-intensive crops (extensive margin), and a reduction in water intensity for irrigated crops (intensive margin). Using a positive mathematical programming model of regional supply calibrated to economic and agronomic information, we decompose the total effect of reduced water availability on these adjustment margins in Beauce, a productive cereal region that relies on a groundwater resource to meet its irrigation needs. For realistic water scarcity scenarios, 57 per cent of the total response is attributable to super-extensive margin adjustments. The extensive margin represents 28 per cent of the total response, while the intensive margin accounts for 15 per cent. Crop-level analysis reveals more subtle adaptation patterns. |
Cote : | Demander à l'accueil |
URL / DOI : | https://doi.org/10.1093/erae/jbt039 |