Global Agricultural Market and Land‐Use Implications of Producing Sustainable Aviation Fuel from Second Crop Corn Ethanol in Brazil
ブラジルの二期作トウモロコシエタノールからの持続可能な航空燃料生産が世界の農業市場と土地利用に及ぼす影響 (AI 翻訳)
A. Elobeid, M. Carriquiry, L. C. Bachion, Sofia Marques Arantes, J. Dumortier
🤖 gxceed AI 要約
日本語
ブラジルの二期作トウモロコシ由来エタノールをSAF原料とする際の、世界の土地利用変化とGHG排出への影響を、全球農業貿易モデルとライフサイクル分析で評価。供給弾力性や二期作の強化により、国際価格や土地利用への影響は中程度で、GHG排出は低減または負になる可能性を示した。二期作システムの維持と土地利用変化の回避が低炭素経路の鍵となる。
English
This study evaluates the global land-use and GHG implications of expanding Brazilian second-crop corn ethanol for SAF. Using a global agricultural trade model and life-cycle analysis, it finds moderate impacts on prices and land use, with potential for low or negative GHG emissions if double-cropping is preserved and land-use change avoided. Highlights trade-offs for aligning climate and agricultural policy.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本はSAF導入目標を掲げ、輸入原料への依存が想定される。本研究成果は、海外でのSAF原料生産が土地利用変化やGHG排出に与える影響を理解する上で重要であり、日本の持続可能な調達基準や国際的な排出削減評価に示唆を与える。
In the global GX context
As global SAF demand grows, understanding indirect land-use change and lifecycle emissions of feedstocks is critical for compliance with CORSIA and EU regulations. This study provides evidence on Brazilian second-crop corn, informing sustainable feedstock sourcing and policy design for international aviation decarbonization.
👥 読者別の含意
🔬研究者:Provides a modeling framework for assessing land-use and GHG impacts of biofuel feedstocks, useful for similar analyses in other regions.
🏢実務担当者:Informs SAF feedstock procurement strategies and sustainability assessments, relevant for airlines and fuel suppliers.
🏛政策担当者:Highlights policy considerations for promoting SAF while avoiding unintended land-use change, relevant for national and international climate policy.
📄 Abstract（原文）
Ethanol can potentially serve as a feedstock for sustainable aviation fuel (SAF) production. This study evaluates the global land use and associated carbon implications of expanding Brazilian corn ethanol production using second crop corn. Using a global agricultural trade model, which explicitly represents second crop corn production in Brazil, this analysis examines scenarios regarding ethanol demand growth, corn supply elasticity, and trade constraints. Results show that increasing Brazilian ethanol production using second crop corn can moderately impact international prices, land‐use, and greenhouse gas (GHG) emissions, especially when corn supply is highly elastic or double cropping intensifies. Under the limiting assumption of a perfectly elastic second‐crop corn land response, our findings show minimal or even negative net land‐use change. Focusing on land use, a life cycle analysis reveals that second crop corn ethanol can achieve lower or negative GHG emissions, primarily due to the use of feedstock grown on land already used in the same year (second crop), renewable process energy, and the substitution of soybean meal through corn co‐products. These findings suggest that Brazilian second crop corn offers a low‐carbon pathway for SAF production, contingent on preserving double‐cropping systems and avoiding land‐use change. The article highlights critical trade‐offs and policy considerations for aligning climate goals with sustainable agricultural and energy systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1111/agec.70108first seen 2026-05-15 17:30:12 · last seen 2026-08-02 06:16:41
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