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Identify gaps in our knowledge of trees and the ecosystem services they provide in an urban context

Explore the benefits of the joint development of diversified, local bioeconomic activities in urban areas to answer the following question: can co-activity (i.e. one or more types of bio-refineries that jointly add value to services and products) within the same structure or several value-adding structures make it possible to increase the value of biomass and render micro-structures more sustainable, particularly in combination with intra- or peri-urban agricultural activities ?

Guadeloupe's island context, the climatic constraints of its tropical environment, the particular nature of urban areas due to their integration into rural areas, the importance of micro-farms, the major challenges facing food self-sufficiency, the originality of local biodiversity and the know-how around traditional Creole gardens, are all assets that make Guadeloupe a privileged site for research into the circular bioeconomy at different scales (neighbourhoods, towns, communes, the island as a whole).

Material and energy flows between town and country, questioning agri-food systems: relocation, non-food uses of biomass, opposing soil artificialisation, etc.

Compare and articulate a comprehensive approach to the bioeconomic transition combining field observations and modelling

Entomoconversion in a circular bioeconomy approach

Our consortium wishes to investigate the engineering of agricultural and food waste in a logic of circularity of flows on the scale of a large urban area, including the Saclay plateau and the plain of Versailles. We wish to explore the issue in an interdisciplinary manner, including 7 units from 4 INRAE divisions.

Understand the interactions between the activities that produce, process, value and consume biomass in a systematic rather than sectoral way, and account for the dynamics of the water, energy and land resources that underpin these activities

The management and reuse of urban wastewater must go beyond the treatment of water and recycling in an industrial context or use for irrigation on farms. If wastewater is to be incorporated into urban ecosystems, the entire small water cycle needs to be redesigned, from identifying all available resources in a territory to characterising all uses and their associated constraints to all the socio-technical systems that allow water to be treated, transported, stocked and (re)distributed.

Food plays a decisive role In for the flow of materials and energy ofin an urban areas.the POPCORN project, our ambition the goal is to worklook onat these two complementary dimensions: the eating population that eats and its food consumption, and the transformation of food matter, thus allowing for a more reliable quantitative analysis of the materiality of the food systems of an areaterritories by connecting agricultural production sectors to consumption and waste sectors that are often looked at in isolation.