バイオ炭の二酸化炭素除去ポテンシャル評価における知識ギャップの特定：カナダのケーススタディ
Identifying knowledge gaps in the assessment of biochar's carbon dioxide removal potential: A Canadian case study (原題)
Marc-Antoine Poulin, Andréa Oliveira Nunes, Thierry Ghislain
🤖 gxceed AI 要約
日本語
パリ協定の2050年カーボンニュートラル達成にはバイオ炭などのCDR戦略が不可欠である。本研究はカナダを事例に、バイオ炭関連の科学文献と、利用可能な有機資源から算出した技術的CDRポテンシャルの整合性を評価した。保守的シナリオで165,771 kt Cの持続可能な資源量が確認され、Puro.earthプロトコルに基づくCDRポテンシャルは最大348,146 kt CO2換算に達する。しかし文献は二次林業残渣や農地土壌改良に偏り、環境影響評価は13件のみで、大規模展開を支えるには知識ギャップが大きい。
English
This Canadian case study assesses whether biochar research aligns with the country's technical carbon dioxide removal (CDR) potential. A conservative baseline shows 165,771 kt C of sustainably exploitable resources (73% fire-killed trees), implying up to 348,146 kt CO2e CDR under Puro.earth's protocol. A review of 150 Scopus publications finds research concentrated on secondary forestry residues and soil amendment, with only 13 studies on environmental impacts, leaving major knowledge gaps for large-scale deployment.
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
日本でもバイオ炭はJ-クレジット制度や農林業由来の炭素除去手法として注目される。本稿は資源量評価と文献ギャップを対応させる手法を提示し、国内のCDRポテンシャル評価やクレジット制度設計を検討する日本企業・政策担当者に示唆を与える。
In the global GX context
Biochar is a leading durable CDR pathway under emerging carbon removal certification frameworks (EU CRCF, Puro.earth). This study's method—mapping scientific evidence against resource-based CDR potential—offers a template for other jurisdictions assessing whether research adequately supports net-zero deployment and carbon credit issuance.
👥 読者別の含意
🔬研究者:バイオ炭CDR研究の文献ギャップと資源量評価を結びつける方法論の参考になる。
🏢実務担当者:バイオ炭事業の原料調達やCDRクレジット化を検討する際の資源量・エビデンス評価に活用できる。
🏛政策担当者:CDR戦略の政策立案において、研究と実装のギャップを埋めるための優先研究領域の特定に有用。
📄 Abstract（原文）
Achieving carbon neutrality by 2050, as targeted under the Paris Agreement, requires the deployment of carbon dioxide removal (CDR) strategies such as biochar production (BC), especially in biomass-rich regions. However, its effectiveness as a negative-emission technology depends strongly on process conditions and the sustainability of biomass feedstocks, requiring robust scientific evidence to confirm its CDR potential. Canada, which is well positioned to develop an industrial BC sector and is projected to rely on it for its net-zero strategy on it, was used as a case study to assess the alignment between BC-related scientific literature and its technical CDR potential derived from exploitable organic resources. Results show that Canada has a sustainably exploitable resource of 165,771 kt C under a conservative baseline scenario, dominated by fire-killed trees (73%), followed by crop residues (14%) and harvest residues (5%). According to Puro.earth's protocol, this resource represents a CDR potential of up to 348,146 kt CO 2 -equivalent by BC production, excluding upstream and downstream life cycle emissions. The systematic literature review, based on 150 Scopus-indexed publications, shows that Canadian BC research focuses mainly on secondary forestry residues feedstock and agricultural soil amendment applications. However, only 13 studies address BC production's environmental impacts in Canada. Significant knowledge gaps remain in Canadian literature, including insufficient data on alternative feedstocks (e.g., disturbed forest biomass, crop residues, manure), underexplored applications with market potential (e.g., fossil fuel substitution, materials), and limited environmental assessments across provinces and territories. Despite BC being among the most studied CDR options in Canada, current scientific literature does not adequately support large-scale deployment, highlighting the need for targeted research to inform policy and investment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.biombioe.2026.109986first seen 2026-10-16 04:40:43
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