气候变化领域集成服务门户(CCPortal): Modelling food security: Bridging the gap between the micro and the macro scale

CCPortal

DOI	10.1016/j.gloenvcha.2020.102085
	Modelling food security: Bridging the gap between the micro and the macro scale
	Müller B.; Hoffmann F.; Heckelei T.; Müller C.; Hertel T.W.; Polhill J.G.; van Wijk M.; Achterbosch T.; Alexander P.; Brown C.; Kreuer D.; Ewert F.; Ge J.; Millington J.D.A.; Seppelt R.; Verburg P.H.; Webber H.
发表日期	2020
ISSN	0959-3780
卷号	63
英文摘要	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. © 2020 Elsevier Ltd
关键词	food security methodology modeling nutrition
语种	英语
来源机构	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133277
推荐引用方式 GB/T 7714	Müller B.,Hoffmann F.,Heckelei T.,et al. Modelling food security: Bridging the gap between the micro and the macro scale[J]. Global Environmental Change,2020,63.
APA	Müller B..,Hoffmann F..,Heckelei T..,Müller C..,Hertel T.W..,...&Webber H..(2020).Modelling food security: Bridging the gap between the micro and the macro scale.,63.
MLA	Müller B.,et al."Modelling food security: Bridging the gap between the micro and the macro scale".63(2020).