炭素回収・貯留を伴うバイオエネルギーに向けた西カナダにおける農業・林業残渣の利用可能量推計
Estimating Agricultural and Forestry Residue Availability in Western Canada for Bioenergy with Carbon Capture and Storage (原題)
E. Nishikawa, D.L.Z. Peña, S.T. McCoy, B.A. Saville, H.L. MacLean
🤖 gxceed AI 要約
日本語
本研究は、西カナダにおける農業・林業残渣のBECCS向け利用可能量を、競合用途・土壌保全・技術制約・CCSインフラへの近接性を考慮し空間的に推計した。小麦わらは最大47Mt/年だが制約後16〜22Mt/年、CCS近接地域では2〜5Mt/年に減少する。楽観的IAM仮定に比べ現実的供給は大幅に小さいことを示す。
English
This study spatially estimates agricultural and forestry residue availability for BECCS in Western Canada, accounting for competing uses, soil retention, technical constraints, and proximity to CCS infrastructure. Wheat straw drops from 47 Mt/yr theoretical to 16-22 Mt/yr after constraints, and just 2-5 Mt/yr near CCS sites. Results show realistic BECCS potential is far below optimistic IAM assumptions.
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BECCS・CCSはGX推進の重要技術だが、国内バイオマス供給制約を定量的に示す研究は乏しい。本手法は日本の地域別残渣ポテンシャル評価やGX政策の実現可能性検証に応用可能。
In the global GX context
As ISSB/CSRD push credible transition planning, this paper shows how spatial constraints shrink BECCS potential versus IAM optimism—directly relevant to CDR accounting and net-zero pathway credibility in global disclosure.
👥 読者別の含意
🔬研究者:BECCS供給推計における空間的制約とIAM仮定の乖離を示す実証的手法の参考になる。
🏢実務担当者:バイオマス調達やCCS連携を検討する企業は、供給量が制約で大幅減となる現実を事業計画に反映すべき。
🏛政策担当者:BECCSポテンシャルを過大評価せず、地域別・制約考慮型の国別評価を政策設計に組み込む必要性を示す。
📄 Abstract（原文）
Canada has substantial biomass resources that could support bioenergy with carbon capture and storage (BECCS). However, bottom-up and spatially explicit estimates are lacking. This study estimates current/near-term agricultural and forestry residue availability for BECCS, accounting for competing uses, soil retention needs, technical constraints, and proximity to CCS infrastructure. Western Canada is considered due to its strong agricultural and forestry sectors and more developed CO2 storage capacity. High resolution and recent biomass inventories, constrained areas (e.g., protected, conservation), and infrastructure layers are integrated in ArcGIS Pro to evaluate scenarios ranging from theoretical maximum supply to more restrictive cases. Results show that wheat straw production in Alberta, Saskatchewan, and Manitoba totals 47.Mt/year (dry), with 16 to 22.Mt/year available after constraints. Logging residues provide 2.Mt/year in these provinces, with 0.4 to 1.8.Mt/year available; including the province of British Columbia increases maximum logging residue production to 12.Mt/year (8 to 11.Mt/year available after constraints). However, when limited to areas near existing or near-term CCS infrastructure, wheat straw accessible for BECCS drops to 2 to 5.Mt/year. The study highlights how logistical, environmental, and infrastructure constraints substantially reduce BECCS potential compared with optimistic integrated assessment model assumptions, underscoring the need for realistic, context specific national assessments.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5071/34theubce2026-1ao.4.3first seen 2026-10-10 05:09:50
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