Article (Périodiques scientifiques)
Modelling food security: Bridging the gap between the micro and the macro scale
Müller, Birgit; Hoffmann, Falk; Heckelei, Thomas et al.
2020In Global Environmental Change: Human and Policy Dimensions, 63, p. 102085
Peer reviewed vérifié par ORBi
 

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Résumé :
[en] Achieving food and nutrition security for all in a changing and globalized world remains a critical challenge of utmost importance. The development of solutions benefits from insights derived from modelling and simulating the complex interactions of the agri-food system, which range from global to household scales and transcend disciplinary boundaries. A wide range of models based on various methodologies (from food trade equilibrium to agent-based) seek to integrate direct and indirect drivers of change in land use, environment and socio-economic conditions at different scales. However, modelling such interaction poses fundamental challenges, especially for representing non-linear dynamics and adaptive behaviours. We identify key pieces of the fragmented landscape of food security modelling, and organize achievements and gaps into different contextual domains of food security (production, trade, and consumption) at different spatial scales. Building on in-depth reflection on three core issues of food security – volatility, technology, and transformation – we identify methodological challenges and promising strategies for advancement. We emphasize particular requirements related to the multifaceted and multiscale nature of food security. They include the explicit representation of transient dynamics to allow for path dependency and irreversible consequences, and of household heterogeneity to incorporate inequality issues. To illustrate ways forward we provide good practice examples using meta-modelling techniques, non-equilibrium approaches and behavioural-based modelling endeavours. We argue that further integration of different model types is required to better account for both multi-level agency and cross-scale feedbacks within the food system.
Centre de recherche :
Luxembourg Centre for Socio-Environmental Systems (LCSES)
Disciplines :
Agriculture & agronomie
Sciences de l’environnement & écologie
Auteur, co-auteur :
Müller, Birgit
Hoffmann, Falk
Heckelei, Thomas
Müller, Christoph
Hertel, Thomas W.
Polhill, J. Gareth
van Wijk, Mark
Achterbosch, Thom
Alexander, Peter
Brown, Calum
Kreuer, David
Ewert, Frank
Ge, Jiaqi
Millington, James D. A.
SEPPELT, Ralf  ;  University of Luxembourg > Luxembourg Centre for Socio-Environmental Systems (LCSES)
Verburg, Peter H.
Webber, Heidi
Plus d'auteurs (7 en +) Voir moins
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Modelling food security: Bridging the gap between the micro and the macro scale
Date de publication/diffusion :
2020
Titre du périodique :
Global Environmental Change: Human and Policy Dimensions
ISSN :
0959-3780
eISSN :
1872-9495
Volume/Tome :
63
Pagination :
102085
Peer reviewed :
Peer reviewed vérifié par ORBi
Focus Area :
Sustainable Development
Objectif de développement durable (ODD) :
2. Faim "zéro"
15. Vie terrestre
Disponible sur ORBilu :
depuis le 04 juin 2025

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