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Global Analysis Reveals How Armed Conflict Erodes Farmland and Potential Food Production Worldwide

Phys.org Science•Published: Oct 9, 2026 08:30 AM IST
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Global Analysis Reveals How Armed Conflict Erodes Farmland and Potential Food Production Worldwide
A new global study published in Nature Food reveals that armed conflict significantly accelerates the loss of vital cropland, with impacts persisting for years after violence begins. Researchers from the Chinese Academy of Sciences analyzed high-resolution global cropland maps alongside hundreds of thousands of georeferenced conflict events across 155 countries from 2000 to 2020.
  • Disproportionate Exposure: Conflict-affected areas covered only about 3% of global land area yet contained over 6% of the world's total cropland in 2020, highlighting severe agricultural vulnerability.
  • Quantified Agricultural Loss: Armed conflict was linked to an average 3.01% reduction in cropland area, translating to a global loss of approximately 249,667 square kilometers.
  • Institutional Mitigation: Regions with stronger government effectiveness, regulatory quality, and the rule of law experienced smaller agricultural losses, demonstrating institutional resilience.
  • Regional Concentration: The most severe cropland losses were heavily concentrated in western Africa, eastern Africa, and Southeast Asia, particularly during protracted and high-intensity conflicts.

The Context & Background

While global agricultural land generally expanded between 2000 and 2020, zones exposed to frequent armed conflict suffered persistent declines that directly threaten long-term food security. Understanding these dynamics helps illustrate how governance and social stability play a critical role in shielding agricultural infrastructure from the devastating impacts of warfare.

Why it matters:The systematic erosion of farmland during armed conflicts poses a severe, long-term threat to global food security and dietary energy supplies. By linking institutional strength and conflict severity to agricultural damage, the findings emphasize the urgent need for targeted international interventions to protect food systems in vulnerable regions.

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