Refining Regional Carbon Estimates in Teak (Tectona grandis L.f.) Plantations Using Pantropical Allometry and Measured Carbon Fractions
パントロピカルアロメトリーと実測炭素割合を用いたチーク林分における地域炭素推定量の精緻化 (AI 翻訳)
Bayron Alexander Ruiz-Blandon, Rosario M. Bernaola-Paucar, Bertha Carolina Sotelo Alcántara, Leonor Neda Carbajal Cuadros, Kenyi Paul Hinostroza Mendoza, Julián Leonardo Mantari Mallqui, Yubel Mayela Carrasco Nuñez, Hebert Ernesto Ramos-Acuña
🤖 gxceed AI 要約
日本語
メキシコ西部のチーク林分において、汎熱帯アロメトリーと実測炭素分率を用いて炭素推定を改善した。部位別炭素濃度は異なり、葉や枝は0.47未満、幹や根は高かった。総バイオマス炭素分率平均は48.24%で、一般値より平均1.33 Mg C ha−1（2.67%）高く推定された。この精緻化は不確実性低減に寄与するが、広域適用にはさらなるインベントリデータが必要である。
English
This study refined carbon estimates in teak plantations in Nayarit, Mexico, using pantropical allometry and measured carbon fractions. Carbon concentration varied among components; the measured total biomass fraction averaged 48.24%, higher than the generic 0.47 factor. This approach increased carbon estimates by 1.33 Mg C ha−1 (2.67% relative adjustment), reducing conversion-related uncertainty. Broader application requires larger inventories.
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
本論文は熱帯チーク林における炭素推定の手法改良に関するもので、日本の海外植林事業やJCM下でのカーボンオフセット会計に間接的な関連性がある。日本企業がREDD+や森林プロジェクトに取り組む際、本手法を採用することで炭素吸収量の精度向上が期待できるが、国内GX政策との直接的な接点は限定的である。
In the global GX context
This study addresses uncertainty in forest carbon accounting, which is critical for national greenhouse gas inventories and carbon credit markets under Article 6 of the Paris Agreement. The findings are relevant for global land-use sector emissions reporting, aligned with IPCC guidelines for land-use, land-use change, and forestry (LULUCF).
👥 読者別の含意
🔬研究者:This paper provides a refined method for estimating carbon stocks in teak plantations using measured carbon fractions, which can reduce estimation uncertainty in tropical forest carbon accounting.
🏢実務担当者:Forestry carbon project developers can use this approach to improve accuracy of carbon credit calculations for teak plantations, potentially increasing carbon credit yields.
🏛政策担当者:The paper highlights the need for species- and component-specific carbon fractions in national greenhouse gas inventories for the land-use sector.
📄 Abstract（原文）
Teak plantations are widely promoted as productive forest systems with potential contributions to carbon storage and climate-oriented land management. However, plantation carbon estimates often rely on generic biomass-to-carbon conversion factors, which may overlook variation in carbon concentration among tree components. This study refined carbon estimates in tropical teak plantations in Nayarit, western Mexico, by combining pantropical allometry with measured carbon fractions. Carbon concentration was determined in leaves, branches, stem, roots, and total biomass, and carbon stocks were compared using the generic 0.47 factor and measured total biomass carbon fractions. Carbon concentration differed among biomass components, with leaves and branches remaining below 47%, while stem, roots, and total biomass exceeded this value. The measured total biomass carbon fraction averaged 48.24%, producing refined carbon estimates that were consistently higher than those obtained with the generic factor. Across plantation-age records, the refined approach increased carbon estimates by 1.33 Mg C ha−1, equivalent to a mean relative adjustment of 2.67%. When projected as an illustrative scenario, this difference represented 133, 665, and 1330 Mg C over 100, 500, and 1000 ha, respectively. These findings show that measured carbon fractions can reduce one source of conversion-related uncertainty and refine plantation-level carbon estimates. Broader regional application would require larger and more representative plantation inventories.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/earth7040109first seen 2026-07-02 05:43:22
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