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Guardians of the Coast: Biogeochemical Mechanisms and Climate Mitigation

海岸の守護者：生物地球化学的メカニズムと気候緩和 (AI 翻訳)

Nawanjana Udani Vithanage

Zenodo (CERN European Organization for Nuclear Research)📚 査読済 / ジャーナル2026-07-29#気候科学
DOI: 10.5281/zenodo.21692833
原典: https://doi.org/10.5281/zenodo.21692833

🤖 gxceed AI 要約

日本語

本論文は、マングローブ、海草藻場、塩性湿地などの沿岸ブルーカーボン生態系が、単位面積あたり地球上で最も効率的な炭素吸収源であることを総説する。これらの生態系は、地下の嫌気性堆積物中に炭素を長期間貯留し、高潮や酸性化への緩衝機能も果たす。保護・回復・持続可能な管理が気候変動緩和と沿岸レジリエンス強化に不可欠と結論づける。

English

This review synthesizes biogeochemical mechanisms of carbon sequestration in coastal blue carbon ecosystems (mangroves, seagrasses, salt marshes), highlighting their efficiency as carbon sinks and their role in shoreline protection and acidification buffering. It emphasizes the importance of conservation and restoration for climate mitigation and coastal resilience.

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

日本はブルーカーボン生態系の保全・再生を推進しており、本総説はJブルークレジット制度や沿岸域の気候変動適応策の科学的根拠を提供する。日本の沿岸管理やESG情報開示における自然資本評価にも示唆を与える。

In the global GX context

This review supports global efforts on nature-based climate solutions, aligning with TNFD and emerging blue carbon accounting frameworks. It provides scientific grounding for coastal ecosystem conservation and restoration as part of climate mitigation strategies, relevant to international disclosure and policy.

👥 読者別の含意

🔬研究者:Provides a comprehensive overview of blue carbon biogeochemistry, useful for framing research on coastal carbon dynamics.

🏢実務担当者:Supports corporate natural capital assessments and blue carbon project development for carbon offsetting.

🏛政策担当者:Informs coastal conservation and restoration policies as climate mitigation measures, relevant to national climate commitments.

📄 Abstract（原文）

Abstract Anthropogenic activities have significantly amplified global greenhouse gas emissions, disrupting Earth's atmospheric energy balance and driving accelerated climate change. While terrestrial systems play a well-documented role in carbon regulation, coastal blue carbon ecosystems—specifically mangroves, seagrass meadows, and tidal salt marshes—represent the most efficient biological carbon sinks per unit area on Earth. This paper synthesizes the biogeochemical mechanisms governing long-term carbon sequestration across these coastal habitats. Unlike terrestrial forests, blue carbon ecosystems store the vast majority of their carbon pool underground within waterlogged, anoxic sediment columns. High primary productivity, rapid vertical accretion, low decomposition rates, and subterranean root structures enable the trapping and millennial-scale burial of both autochthonous and allochthonous carbon. Furthermore, lateral fluxes, including dissolved carbon outwelling from mangroves, serve as pivotal buffers against ocean acidification and contribute substantially to global marine carbon budgets. Beyond their carbon storage capacity, these ecosystems provide critical shoreline stabilization, wave attenuation, and biodiversity support across tropical and temperate regions. Protecting, restoring, and sustainably managing blue carbon ecosystems is therefore imperative for enhancing nature-based climate mitigation and building long-term coastal resilience.

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