土地利用変化はコンゴ盆地泥炭地で気候シナリオに関わらず急速な炭素損失を引き起こすが、気候変動のみの影響は不確実
Land-use change causes rapid carbon losses in Congo Basin peatlands across climate scenarios, whereas the effects of climate change alone are uncertain (原題)
Dylan M. Young, Andy J. Baird, Paul J. Morris, Eleanor Burke, Chris Smith, Jorge Ramirez, Greta C. Dargie, Arnoud Boom, Richard A. Betts, Yannick E. Bocko, Peter Cook, Dafydd E. Crabtree, Bart Crezee, Yannick Garcin, Selena Georgiou, Nicholas T. Girkin, Pauline Gulliver, Donna Hawthorne, Ian T. Lawson, Susan E. Page +5
🤖 gxceed AI 要約
日本語
コンゴ盆地の熱帯泥炭地は地球規模で重要な炭素貯蔵庫だが、気候変動と土地利用変化（特に排水）の影響をシミュレーションした。気候変動のみでは不確実性が高いが、土地利用変化を組み合わせると、泥炭地は大幅な炭素排出源となることが確実である。保護の緊急性を示す。
English
This study simulates the effects of climate and land-use change on Congo Basin peatlands, finding that while climate change alone has uncertain impacts, coupling land-use change (drainage) with climate change unequivocally turns these peatlands into significant carbon emitters. The results emphasize the urgent need to protect these ecosystems from land-use 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、熱帯泥炭地の保護は国際的な炭素市場やサプライチェーンにおける森林・土地利用由来排出の扱いに関連する。日本企業が海外での土地利用変化に伴う排出をScope 3で報告する際の参考となる。
In the global GX context
This paper contributes to global understanding of peatland carbon dynamics under climate and land-use change, relevant for climate policy and carbon accounting in tropical regions. It underscores the importance of protecting peatlands for climate mitigation, which is pertinent to international frameworks like the Paris Agreement and REDD+.
👥 読者別の含意
🔬研究者:Provides a modeling framework for assessing peatland carbon responses to combined climate and land-use scenarios, useful for carbon cycle research.
🏢実務担当者:Highlights the risk of land-use change in tropical peatlands, informing corporate supply chain due diligence and Scope 3 emissions assessments.
🏛政策担当者:Emphasizes the need for policies protecting tropical peatlands to avoid large carbon emissions, relevant for international climate commitments.
📄 Abstract（原文）
One of Earth's most extensive tropical peatland complexes is in the central Congo Basin. Past climatic drying caused the widespread loss of a large proportion of the peat carbon stock, indicating its vulnerability to climate change. However, the additional effect caused by the interaction of climate change with land-use change-particularly drainage-on peat carbon stores has not been assessed. Here, we simulate the effects of climate and land-use change on Congo Basin peatlands. Our model is driven by an ensemble of 10 climate models to assess changes in peat carbon stocks at global warming levels 1.5, 2, 3 and 4°C. We find that the fate of the peatland carbon store is highly uncertain when we simulate climate change alone (warming level 3°C gives a median change in peat thickness of 0.04 m; range of approx. -5.0 to +0.3 m). By contrast, simulations that couple land-use change with twenty-first-century climate change are unequivocal: the Congo Basin peatlands will become significant emitters of carbon. When the warming level is 3°C, the change in peat thickness of a drained peatland is projected to be -2.6 m; a range of approximately -5.0 to -2.1 m. Our results emphasize the need to protect Congo Basin peatlands from widespread land-use change. A French translation of this abstract is available in the supplementary material. This article is part of the discussion meeting issue 'African tropical peatlands: function, value and vulnerability'.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1098/rstb.2024.0486first seen 2026-08-24 04:55:02
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