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Food and electricity self-sufficiency trade-offs in Reunion Island: Modelling land-use change scenarios with stakeholders

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  • Russeil, Valentin
  • Lo Seen, Danny
  • Broust, François
  • Bonin, Muriel
  • Praene, Jean-Philippe

Abstract

Reunion Island, a French overseas region in the Indian Ocean, has endorsed policies targeting food and electricity self-sufficiency. This objective implies balancing different land-uses (food, feed, bioelectricity, urbanisation, etc.) which we explore in a set of scenarios towards 2035. Through participatory structural analysis, we modelled drivers of change as processes using Ocelet, a spatially explicit and dynamic modelling platform. We built a detailed land-use map for our initial state and calibrated relevant processes through four scenarios ranging from “business-as-usual” to “implementation of ambitious territory planning policies”. To improve local self-sufficiency, our results support the need for large-scale land planning policies, suggesting partial sugarcane conversion into food crops, urbanisation control, farmlands expansion onto fallows and photovoltaic increase. Our context-specific approach addresses food and electricity self-sufficiency as a whole and understands its inner dynamic and spatial processes from stakeholders’ viewpoint. Moreover, our model recognizes small-scale spatial heterogeneity and contributes to mediate controversial issues related to territory foresight and land-use planning.

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  • Russeil, Valentin & Lo Seen, Danny & Broust, François & Bonin, Muriel & Praene, Jean-Philippe, 2023. "Food and electricity self-sufficiency trade-offs in Reunion Island: Modelling land-use change scenarios with stakeholders," Land Use Policy, Elsevier, vol. 132(C).
  • Handle: RePEc:eee:lauspo:v:132:y:2023:i:c:s0264837723002508
    DOI: 10.1016/j.landusepol.2023.106784
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    References listed on IDEAS

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    1. Alvanitakis, Manon & Kleinpeter, Vivien & Vigne, Mathieu & Benoist, Anthony & Vayssières, Jonathan, 2024. "A substance flow analysis to assess the potential benefits of livestock based circularity for nutrient use efficiency and carbon return to soils in the agro-food-waste system of a tropical island," Agricultural Systems, Elsevier, vol. 219(C).

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