HARCHAOUI Souhil

Research

Current research topics

My research topics focus on the modelling of agricultural transitions. Based on integrative approaches of energy and nutrient flows, I examine links among energy functioning, environmental impacts and the feeding capacity of agriculture. I am interested in developing a framework to characterize the circularity of flows and the role of livestock farming in transitions of agricultural territories.

Collaborations

• Laboratoire Interdisciplinaire des Energies de Demain (LIED), UMR 8236, Université de Paris, France

Current projects

• Responsible for the ANR JCJC DESCALE (2026-2029) on assessing temporal and spatial scales of future agri-food transitions in livestock territories.  
• Co-leader of research work package 2 in TETRAE AMPERA (2022-2026): metabolic and landscape approaches for territorialized agroecological transition in livestock (community of communes scale).
• Participant to one task in ANR GREENSEAS (2023-2026) : adaptation of vulnerable socio-ecological coastal systems to eutrophication (community of communes and/or watershed scale).  
• Participant to one task in research work package 3 of SLAM-B (2022-2027) : scenario labs for designing and evaluating bioeconomy trajectories towards carbon neutrality at regional, national, and European scales.

Past projects

• Participant to one task in European DairyMix (2022-2025) : circularity in mixed crop-livestock systems and GHG mitigation (farm scale).  
• Co-leader and coordinator of e CIRCUL'AB (2022-2024) in partnership with GAB-FRAB network: participatory research on polyculture-livestock system transitions for organic farming autonomy in Brittany (Regional Research and Society call).
• Co-leader and coordinator of  intAB (2023-2024) (METABIO meta-programme) 
• Participant in INSECT4CITY consortium (2021-2022): assessing benefits and risks of entomoconversion for urban biowaste recycling (BETTER metaprogram).  
• Participant in ORIGAMII consortium (2021-2022): identifying barriers and drivers for organic pig production (METABIO metaprogram).

Teaching Experience

Tutorial classes at the Geography and Urban Planning department of the University of Paris: Urban and rural geography (24h, 1^st year undergraduate level), Systems and resources (48h, 3^rd year undergraduate level)

Supervision

Co-supervisor of F. Vergely's thesis titled "Role of livestock in biogeochemical cycles and in interactions between organic and conventional agriculture in territories" (2022-2025), funded by the PHASE department and the Brittany Region.

Publications

2026

IACHKINE L., RYSCHAWY J., GODINOT O., HARCHAOUI S. Territorial insights into agri-food system circularity: energy and nitrogen flows of two livestock production regions in Brittany (France). Agricultural Systems

VERGELY F., WILFART A., AUBIN J., HARCHAOUI S. Performances of conventional and organic livestock development scenarios in France through nitrogen flow analysis. Agricultural Systems

2025

HARCHAOUI S., CHATZIMPIROS P.. Energy invested in organic agriculture: An assessment focusing on nitrogen circularity. Science of the Total Environnent 

CHARY K., JAEGER C., JANSEN H., HARCHAOUI, S., AUBIN, J. . Evaluating nutrient circularity in integrated aquaculture systems: criteria and indicators. Journal of Cleaner Production

BELLANGER, Q., BELINE; F., WILFART  A. , VERGELY F., MAILLARD, G.,  EVENAT, Y.,  BIZE N., HARCHAOUI, S.. Exploring nitrogen-flow networks and energy performance of contrasting organic farms. Nutrient Cycling in Agroecosystems

2017-2024

HARCHAOUI, S., GRILLOT, M., COURTONNE J.Y, MADELRIEUX, S. 2024. A review of socio-metabolic research on circularity in agri-food systems and pathways to action. Nutrient Cycling in Agroecosystems

CHATZIMPIROS, P., HARCHAOUI, S., 2023. Sevenfold variation in global feeding capacity depends on diets, land use and nitrogen management. Nat. Food

HARCHAOUI, S., BLAZY, V., PECHENART, E., WILFART, A., 2023. Challenges and opportunities for improving circularity in the poultry meat and egg sector: The case of France. Resour. Conserv. Recycl. 193, 106963

HARCHAOUI, S., CHATZIMPIROS, P., 2019. Energy, Nitrogen, and Farm Surplus Transitions in Agriculture from Historical Data Modeling. France, 1882-2013. Journal of Industrial Ecology, 23(2), 412-425

HARCHAOUI, S., CHATZIMPIROS, P., 2018. Can Agriculture Balance Its Energy Consumption and Continue to Produce Food? A Framework for Assessing Energy Neutrality Applied to French Agriculture. Sustainability 10, 4624

HARCHAOUI, S., CHATZIMPIROS, P., 2017. Reconstructing production efficiency, land use and trade for livestock systems in historical perspective. The case of France, 1961–2010. Land Use Policy 67, 378–386