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バイオエネルギー作物の評価：リンカンシャーにおけるAD用トウモロコシとミスカンサスの混合手法研究

Evaluating the case for bioenergy cropping: a mixed-methods study of AD maize and Miscanthus in Lincolnshire. (原題)

Toby Russon

プレプリント2026-08-02#エネルギー転換対象セクター: agriculture
DOI: 10.31220/agrirxiv.2026.00470
原典: https://doi.org/10.31220/agrirxiv.2026.00470

🤖 gxceed AI 要約

日本語

リンカンシャーでAD用トウモロコシとミスカンサスを比較し、経済性と環境性のトレードオフを評価。ミスカンサスは低炭素で低コストだが、農家は収益性を優先するため普及しない。英国ETSにバイオメタンとGGRを統合し、炭素価格を付けることで市場主導の普及を提言。

English

This study evaluates the trade-offs between AD maize and miscanthus for bioenergy in Lincolnshire, UK. Miscanthus offers lower LCOE and carbon intensity, but farmers prioritize profitability, hindering adoption. The authors recommend integrating biomethane and GGRs into the UK ETS to monetize carbon benefits and shift from policy-push to market-pull.

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

日本ではバイオマス発電のFIT依存が課題であり、市場メカニズムへの移行は示唆的。農地利用と炭素隔離の経済的価値化は、日本の農林業のGX推進にも応用可能。

In the global GX context

This UK case study highlights the gap between bioenergy potential and adoption, relevant for global bioenergy policy. The recommendation to integrate carbon pricing into agricultural markets aligns with global trends in carbon farming and ETS expansion.

👥 読者別の含意

🔬研究者:バイオエネルギー作物の経済性と環境性のトレードオフに関する実証データを提供。

🏢実務担当者:農地利用の意思決定における炭素価格の重要性を示唆。

🏛政策担当者:英国ETSへのバイオメタン統合など、政策設計の参考になる。

📄 Abstract（原文）

Abstract This study evaluates the economic, agronomic, and environmental trade-offs of bioenergy cropping in Lincolnshire, comparing an annual high-input crop; AD maize, with a perennial low-input crop; miscanthus. The study examines the disconnect between theoretical potential and practical adoption. Utilising a mixed-methods approach, quantitative modelling calculated net economic margins, LCOE, carbon intensity, and MAC using a Cradle-to-Gate boundary. Simultaneously, qualitative thematic analysis of semi-structured interviews with 8 key stakeholders explored the drivers and barriers in land-use decision making. Quantitative results show miscanthus (Athena) produces energy at a lower LCOE (2.09p/kWh) and carbon intensity (8.12 kgCO 2 e/MWh) than maize, achieving a near neutral net carbon balance. However, AD maize provides a superior direct net economic margin per hectare (£201.55/ha compared to miscanthus' £137.59/ha). Qualitative findings reveal that landowners prioritise profitability over environmental mitigation. Consequently, the superior environmental performance of miscanthus fails to drive adoption because current markets do not tangibly reward in-field sequestration. Furthermore, standard agricultural accounting masks the hidden costs associated with both crops whilst simultaneously underestimating the holistic value they can bring to the farm-business. To align landowner incentives with national net-zero targets, the UK bioenergy sector must transition from a volatile 'policy-push' subsidy model to a 'market-pull' framework. The study recommends integrating biomethane and GGRs into the UK ETS to monetise the true carbon sequestration and abatement value of these crops, ensuring sustainable bioenergy cropping becomes a primary function of farm profitability and diversification, aiding adoption to meet land-use targets.

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