Skip to Main content Skip to Navigation
Theses

Valorisation économique et environnementale des complémentarités culture-élevage à travers la production locale de légumineuses : approche par modélisation de l’Ouest de la France

Abstract : This Ph.D. thesis studies crop-livestock complementarities enabled by legumes in the region of western France. Economic and environmental assessment of these complementarities is performed from the farm scale to the regional scale. The main contribution of this research is the development of the bio-economic model SYNERGY, which represents local exchanges of crops (including legumes) and manure between crop-oriented farms and livestock-oriented farms. This model represents the pre-crop effect of legumes and includes alternative rations with these high-protein crops. The main simulation results show that coupled subsidies to legumesincrease their production but do not lead to better valuation of technical complementarities. One way to increase the use of legumes in animal feed is to label GMO-free animal products. However, since the simulated local exchanges of legumes remain low, these crops are largely imported from outside the region. Thus, the economic and environmental results do not improve at the regional scale, and protein self-sufficiency decreases.Finally, at the scale of the agro-food chain, exchanges of legumes lead to high transaction costs, which current contracts reduce only slightly. Developing markets that value local resources could foster legume production.increase their production but do not lead to better valuation of technical complementarities. One way to increase the use of legumes in animal feed is to label GMO-free animal products. However, since the simulated local exchanges of legumes remain low, these crops are largely imported from
Document type :
Theses
Complete list of metadatas

Cited literature [331 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02931582
Contributor : Abes Star :  Contact
Submitted on : Monday, September 7, 2020 - 9:27:10 AM
Last modification on : Wednesday, September 9, 2020 - 3:11:02 PM

File

jouanpdfa_sw1pHldv.pdf
Version validated by the jury (STAR)

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

  • HAL Id : tel-02931582, version 1

Citation

Julia Jouan. Valorisation économique et environnementale des complémentarités culture-élevage à travers la production locale de légumineuses : approche par modélisation de l’Ouest de la France. Economies et finances. Agrocampus Ouest, 2020. Français. ⟨NNT : 2020NSARE054⟩. ⟨tel-02931582⟩

Share

Metrics

Record views

87

Files downloads

30