ブラジルの熱帯・亜熱帯林における地上部炭素吸収源の長期的減少
Long-term decline in above-ground carbon sinks in Brazilian tropical and subtropical forests (原題)
Vinícius Andrade Maia, Natália de Aguiar‐Campos, Fernanda Coelho de Souza, Cléber Rodrigo de Souza, Jamir Prado-Junior, Camila Laís Farrapo, Tainá Mamede Cirne-Silva, Jean Daniel Morel, Fernanda Moreira Gianasi, Gabriela Gomes Pires de Paula, Nathalle Cristine Alencar Fagundes, Alisson Borges Miranda Santos, Wilder Bento da Silva, Felipe de Carvalho Araújo, Fernanda de Oliveira, André Maciel da Silva, Lidiany Carolina Arantes da Silva, Leony Aparecido Silva Ferreira, Miguel Gama Reis, Denise Moura Madeira +9
🤖 gxceed AI 要約
日本語
ブラジル南東部・南部の49森林サイトの長期データを分析し、地上部炭素吸収源の減少と種の均質化を発見。保守的な種が多い森林ほど炭素吸収が高く、気候変動下での森林炭素動態の予測基盤を提供する。
English
Analyzing long-term data from 49 forest sites in southeastern and southern Brazil, this study reveals a decline in above-ground carbon sinks alongside taxonomic and functional homogenization. Forests with more conservative species show higher carbon gains, providing a baseline for predicting carbon dynamics under climate change.
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
日本のGX文脈では、森林吸収源の算定はカーボンクレジットやネットゼロ目標に直結する。ブラジルの事例は、JCMや海外森林投資の評価に示唆を与えるが、直接的な政策連動は限定的。
In the global GX context
This study contributes to global understanding of forest carbon sink dynamics, relevant for nature-based solutions and carbon accounting under frameworks like the Paris Agreement. It highlights the importance of biodiversity for carbon storage, informing global climate policy.
👥 読者別の含意
🔬研究者:Provides empirical evidence on forest carbon sink decline and biodiversity links, useful for carbon cycle modeling.
🏛政策担当者:Informs policies on forest conservation and restoration as climate mitigation strategies.
📄 Abstract（原文）
Abstract Recent evidence indicates that Brazilian forests are shifting from persistent carbon sinks to emerging carbon sources, with important implications for the global climate. To investigate this trend, we analyse long-term census data from 49 forest sites spanning southeast and southern Brazil, including tropical and subtropical forests. We examine above-ground carbon dynamics and its relationship with tree diversity and functional traits that are tightly linked with species’ carbon processing and storage capacities. Our findings reveal a long-term trend of taxonomic, functional and phylogenetic homogenisation and a decline in the forests’ above-ground carbon sink. Specifically, homogeneous forests have lower carbon losses, whilst forests with more conservative species are associated with greater carbon gains and lower carbon losses. Overall, our study establishes a baseline to understand and predict the above-ground carbon sink in the face of ongoing climate change in this region.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s41467-026-74921-0first seen 2026-09-06 05:05:22
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