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La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

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Titre :	A cost-benefit analysis of rice field winter flooding for conservation purposes in Camargue, Southern France (2016)
Auteurs :	Amadou Niang, Auteur ; Claire Agnès Pernollet, Auteur ; Michel Gauthier-Clerc, Auteur ; Matthieu Guillemain, Auteur
Type de document :	Article
Dans :	Agriculture, Ecosystems & Environment (6(20) juillet 2016)
Article en page(s) :	193–205
Langues:	Anglais
Mots-clés :	TdV ; Camargue ; riziculture ; Analyse données ; Valeur économique ; Valeur écologique ; rizière ; Agriculture ; Gestion eau
Résumé :	Rice plants have a high silica content, which prevents rice straw from being used as a compostable bi-product in the same way as that from wheat and many other crops. The most common post-harvest practice in rice fields in France is to burn and then plough the fields. Flooding harvested fields during winter may create agronomical and environmental advantages, but the economic profitability of the practice has not been adequately studied. We used a cost-benefit analysis to explore six possible agricultural scenarios during the rice intercrop period, at the scale of individual farms and of society as a whole. All scenarios were economically realistic for the farmer (benefits-to costs ratios > 1), except current burning-ploughing which was just below economic equilibrium (B/C = 0.93). The most beneficial however was harvesting rice in flooded fields, which saved irrigation pumping costs.
En ligne :	http://www.sciencedirect.com/science/article/pii/S0167880916303322

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