山火事・気候危機に対応するバイオマス炭素貯留の近期的・地理空間的機会
Near-term, geospatial opportunity for biomass carbon storage to address the wildfire and climate crises (原題)
Leah K. Clayton, Alexander S. Wyckoff, Sinéad M. Crotty
🤖 gxceed AI 要約
日本語
山火事抑制のための燃料削減処理で生じる大量の廃バイオマスを、嫌気的埋設により炭素貯留する可能性を評価。米国西部の地理空間水収支モデルで必要土壌被覆厚が4桁にわたり変動することを示し、ライフサイクル評価では埋設が分解・野焼き・バイオ炭より炭素効率が高いと結論。BECCSより便益は小さいが、インフラ要件と経済性から即効性・費用対効果に優れる橋渡し策と位置づける。
English
This study assesses anoxic biomass burial as a scalable way to offtake residues from wildfire fuel-reduction treatments while storing carbon durably. Geospatial water-balance modeling across the western US shows required soil cover varies by four orders of magnitude, and life-cycle modeling finds burial more carbon-efficient than decomposition, pile burning, or biochar. Though BECCS yields greater carbon benefits, burial is a more immediate, cost-effective bridge option.
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
日本では林地残材・除伐材の利活用や森林吸収源（J-クレジット）が政策課題であり、炭素貯留手法の比較は国内森林GXの参考になる。ただし米国西部前提のため直接適用には留意。
In the global GX context
Adds to the emerging carbon-removal (CDR) literature relevant to ISSB/CSRD disclosure of removals and durable storage, and to transition finance for nature-based and engineered CDR. It frames wildfire mitigation as a co-benefit stream that could be counted under emerging removal accounting.
👥 読者別の含意
🔬研究者:炭素除去・貯留のライフサイクル比較と地理空間モデリング手法の実証例として有用。
🏢実務担当者:森林・林業関連企業が廃バイオマスの処理・炭素貯留オプションを検討する際の初期比較材料。
🏛政策担当者:森林管理と炭素除去政策を結びつける際の費用対効果・即効性の根拠を提供。
📄 Abstract（原文）
Climate change and fire suppression are intensifying wildfires, prompting fuel reduction treatments that will generate gigatonnes of waste biomass residues in the near term. We evaluate the potential for anoxic biomass burial to serve as a scalable approach to offtake these residues while simultaneously providing durable carbon storage. Using geospatial water balance modeling across the western United States, we find that minimum soil cover thickness varies over four orders of magnitude, reflecting strong site dependence. Life cycle emissions modeling indicates that burial is more carbon efficient than decomposition, pile burning, or biochar production. Although bioenergy with carbon capture and storage ultimately yields greater carbon benefits, infrastructure requirements and economic analysis indicate that burial is a more immediate, cost-effective option. Burial could thus provide a scalable, carbon-efficient bridge, pending further study of decay and storage controls. Combining biomass carbon removal and storage with wildfire mitigation forestry illustrates the opportunity to leverage shared underlying goals for net climate and economic benefit.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1126/sciadv.aee6185first seen 2026-09-14 04:36:03
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