Year: 2026
Type: article
Abstract: Wheat stands as one of the most important staple crops worldwide. However, the vital role of this crop has been increasingly challenged in Lebanon, in recent years by multi-factorial crises from socio-economic, political, security and climate factors, threatening agricultural stability and food supply. Consequently, monitoring wheat production is crucial for managing import and export activities, developing effective policies, achieving resilient agricultural development, and ensuring food security. This study provides the first national, multi-year monitoring of wheat area in Lebanon (2017–2025), linking satellite observations with crisis impacts to support food security planning. We conducted a multi-temporal supervised classification from 2017–2018 to 2024–2025 seasons, using Google Earth Engine, employing Sentinel-2 optical images and Random Forest classifier. We estimated wheat area based on a random stratified sample achieving an overall accuracy of 87%. Interannual changes were then related to major crises and input-price dynamics. Wheat area increased during 2019–2021 but dropped sharply in 2021–2022 as subsidies weakened and input costs surged. Indeed, during the transition toward economy dollarization, the computed indicator of production cost expressed in USD peak in 2021–2022 and then ease consistently with the 2022–2023 area rebound reaching the highest level observed during the study period. In 2023–2025, the crop area decreased again dramatically (-34% in 2023–2024 and − 38% in 2024–2025) in relation to the conflict with Israel and associated widespread displacement of population that likely constrained field access and reduced sowing, particularly in southern Lebanon. Our findings also point out the need of ground-truth data for accurate area estimation, as well as additional information on yield and socio-economic conditions to better understand the interannual variability of wheat area.
Source: npj Sustainable Agriculture
Institutions: Centre National de la Recherche Scientifique, Centre National d'Études Spatiales, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, National Council for Scientific Research, Centre d'Études Spatiales de la Biosphère, Université de Toulouse, Université de Montpellier
Language: English
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $2,490
OpenAlex ID: W7223097569