Bibliographie

The adoption of healthy and sustainable diets and the transition to sustainable food systems is of principal importance in order to counteract the double burden of climate change and noncommunicable diseases. The Mediterranean diet (MD) has been widely recognized as a biodiversity and healthy nutrition resource to support sustainable development and food security. This study explored biodiversity in terms of food plants species, subspecies, varieties, and races, and also addressed food plant diversity differences between the MD and Western-type consumption patterns. It was funded by the EU BioValue Project, aiming to promote the integration of underutilized crops into the food value chains. Using a 2-stage scheme, data were selected from MEDUSA and Euro+Med databases (including 449 species, 2366 subspecies, varieties, and races). Furthermore, 12 countries from North Africa and Europe were classified in 2 groups according to their subregional attributes and their traditionally most prevalent dietary pattern (MD or Western-type diets). Statistical analysis showed that the mean of the majorly cultivated food plants in the MD was significantly higher than its counterpart in the Western diet. Furthermore, no statistical difference was detected in the averages of native food plants between the MD group and the Western diet group, implying that the higher diversity in food plants observed in the MD seems to be attributed to crop utilization rather than crop availability. Our findings indicated the interlinkage between biodiversity and prevailing dietary patterns and further underlined that biodiversity could constitute a prerequisite for dietary diversity and hence nutrition security. In addition, this study demonstrated that diets and nutrition should be approached in a broader way within the context of both agro-food and ecological systems.

Despite the extensive literature on Local Agro-food Systems (LAFS), which involves research on local food identity and organisational proximity, the environmental sustainability of these systems has rarely been addressed. This paper develops a new concept called Local Agroecological Food Systems (LAEFS), which focuses the research not only on local food identity, but also on agroecological principles. We aim to conduct a reflexive review of the literature on the conceptual factors attempting to describe the particular characteristics of LAEFS (distinguishing these from LAFS). We explore five axes of analysis: (a) to establish a compromise at the local level between agro-food sectoral specialisation on the one hand and greater cultivated biodiversity and a more diversified economic structure on the other; (b) to geographically and commercially shorten food channels to the fullest extent; (c) to construct new institutional formulae in the fields of logistics, distribution and public procurement for the scaling up of sustainable food; (d) to develop a participatory, bottom-up, multi-stakeholder and multi-level territorial governance; and (e) to reduce the metabolic profile of food systems by reorganising rural-urban linkages. One of the principal objectives of LAEFS should involve redesigning agricultural and food systems at a scale greater than that of the farm (territory or landscape). This requires both a major public policy push and sustainable territorial governance that incorporate an approach based on territory, food systems and agroecology.