動的LCAを用いた木材製品の生物起源炭素モデリングの改善：未利用木材の気候変動緩和ポテンシャル評価
Improving biogenic carbon modelling of harvested wood products using dynamic LCA: Assessing the climate change mitigation potential of underutilised wood (原題)
D Von Dufving, Andrew Norton, Patricia Schneider-Marin, Joris Van Acker, Jan Van den Bulcke, Liselotte De Ligne, Marijke Steeman
🤖 gxceed AI 要約
日本語
本研究は、建設用木材製品（HWP）の生物起源炭素貯留を評価する動的LCA手法を改善し、樹種・部位・気候域ごとの差異を反映した新たなGWP-biogenicフレームワークを提示する。詳細なバイオマスインベントリを用い、広葉樹や低品質材・使用済み木材などの未利用木材が、長期利用のHWPに投入された場合、一般的な針葉樹幹材を上回る緩和効果を持ち得ることを示した。EUの2050年気候目標に対する長期HWPの役割を精緻化する貢献である。
English
This study improves dynamic LCA for biogenic carbon in harvested wood products (HWPs), presenting a novel GWP-biogenic framework that captures climate-domain, species, and component differences. Using detailed biomass inventories, it shows underutilised wood (hardwoods, low-quality, post-consumer) can deliver higher climate mitigation benefits than common softwood stems when used in long-lived construction HWPs in Europe. It supports the role of long-lived HWPs in meeting EU 2050 climate goals.
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
日本でも木材利用促進法や建築物木材利用促進法のもとでCLT等の長期木材利用が進むが、炭素貯留の評価手法は未成熟。本論文の動的LCAフレームワークは、国産材・未利用材の環境価値評価やJ-クレジット制度の精緻化に示唆を与える。
In the global GX context
As global disclosure frameworks (ISSB, CSRD) increasingly demand Scope 3 and product-level carbon accounting, this paper offers a more accurate biogenic carbon methodology for construction materials. It informs how companies can credibly claim climate benefits from long-lived wood products, relevant to EU taxonomy and green building certification.
👥 読者別の含意
🔬研究者:動的LCAにおける生物起源炭素モデリングの精緻化手法と、未利用木材の緩和ポテンシャル評価の新たな枠組みを提供する。
🏢実務担当者:建設・木材関連企業が、長期木材製品の炭素貯留効果をより正確に算定し、環境訴求やScope 3報告に活用するための手法的示唆。
🏛政策担当者:EUの気候目標達成に向け、未利用木材の活用を促進する政策設計や、LCAに基づく炭素会計ルールの改善に資する。
📄 Abstract（原文）
Biogenic carbon storage in harvested wood products (HWPs) used for construction applications is recognised as a key contribution to the EU’s 2050 climate goal. To quantify this climate change mitigation potential, Life Cycle Assessment (LCA) studies are increasingly moving towards dynamic LCA by accounting for the timing of biogenic carbon sequestration and release when quantifying Global Warming Potential (GWP). However, current dynamic LCA methods often rely on generic wood data and oversimplified forest regrowth dynamics, thereby overlooking important climatic domain-, species- and component-specific (e.g. bark, branches, and stem) differences. This leaves the climate change mitigation potential of inherently diverse underutilised wood, such as hardwoods, low- quality wood, and post-consumer wood, uncertain, thereby neglecting potential benefits of their incorporation into HWPs. To address this gap, the study improves biogenic carbon modelling and presents a novel GWP- biogenic framework for attributional, dynamic LCA, enabling comparative climate change impact assessments for HWPs. Making use of detailed biomass inventories, results indicate that underutilised wood resources can exhibit higher climate change mitigation benefits than commonly used softwood stems, when directed into long- lived HWPs for construction applications in Europe. Overall, the study highlights the need to couple robust biomass inventories with improved biogenic carbon modelling to provide accurate GWP-biogenic results and thereby support the role of long-lived HWPs made from underutilised wood in meeting climate change mitigation targets.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.rcradv.2026.200389first seen 2026-10-09 04:43:47
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