Analyser une transition agro-alimentaire par les flux d’azote: Aussois un cas d’étude du découplage progressif de la production et de la consommation

Thierry Bonaudo, Gilles Billen, Josette Garnier, Fabienne Barataud, Sabine Bognon, Denis Dupré and Pauline Marty

Revue d'économie régionale et urbaine, 2017, vol. Décembre, issue 5, 967-991

Abstract: We reconstructed the one-century evolution of the agri-food system of the municipality of Aussois. We considered the nitrogen and money flows. Two periods are distinguished: from 1925 to 1965, characterized by autonomous agro-pastoral systems, while the second period from 1965 to the present, is defined by specialized and intensive grazing systems with an autonomy of 67%. Nitrogen use efficiency almost no changes between the two periods. Only 10% of nitrogen inputs are fixed in the products of the first period and 11% for the second period. Productivity, or the amount of products produced by surface is multiplied by 2.5 to reach today 7.2 kg N/ha/year. Finally, there is an opening of the nitrogen cycle and an economic transition from a low cash flow closely linked to nitrogen flow, to a significant cash flows independent of nitrogen flow.

Keywords: agro-food system; Aussois; farming; territorial ecology; transition (search for similar items in EconPapers)
Date: 2017
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