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Effects of blue carbon restoration strategies on sediment carbon sinks and underlying mechanisms across contrasting hydrogeomorphic settings

異なる水文地形条件下におけるブルーカーボン修復戦略が堆積物炭素シンクに与える影響とそのメカニズム (AI 翻訳)

Jia Lin, Xiaoguang Ouyang

Figshare📚 査読済 / ジャーナル2026-06-02#気候科学Origin: CN
DOI: 10.6084/m9.figshare.32540052
原典: https://doi.org/10.6084/m9.figshare.32540052

🤖 gxceed AI 要約

日本語

本研究では、中国南部の河口域と外洋沿岸域における天然および修復されたマングローブ、海草床、干潟の堆積物コアを分析し、炭素・窒素蓄積を評価した。有機物続成モデルと安定同位体分析を用い、修復後の炭素蓄積速度が天然林より低いこと、水文学的環境が種選択より重要であることを明らかにした。これらの知見は、ブルーカーボン修復の気候信頼性向上に貢献する。

English

This study analyzed sediment cores from natural and restored mangroves, seagrass beds, and tidal flats in South China, integrating diagenetic modeling and isotope analysis. It found that restored sites have lower carbon accumulation rates than natural ones, and that hydrogeomorphic settings are more critical than species choice. The results provide a process-based foundation for improving the climate credibility of blue carbon restoration.

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

日本でもブルーカーボン生態系の修復が進んでおり、本研究成果は沿岸域の炭素シンク評価や修復優先順位の決定に直接的な示唆を与える。特に、日本の汽水域や外洋沿岸域の水文地形条件に応じた種選定の重要性を強調する点が有用。

In the global GX context

This paper contributes to the global science of nature-based climate solutions by providing empirical evidence on blue carbon restoration effectiveness. It underscores the need to align restoration strategies with local hydrogeomorphic settings, which is relevant for countries investing in coastal carbon sinks under frameworks like the Paris Agreement.

👥 読者別の含意

🔬研究者:Provides a process-based understanding of carbon sequestration dynamics in restored blue carbon ecosystems, useful for modeling and restoration ecology.

🏢実務担当者:Informs species selection and site prioritization for blue carbon restoration projects to maximize carbon sink benefits.

🏛政策担当者:Offers evidence for designing effective blue carbon restoration policies that consider local hydrogeomorphic conditions, enhancing climate mitigation credibility.

📄 Abstract（原文）

Blue carbon ecosystems contain disproportionately large carbon stocks and have therefore become priority targets for ecological restoration. Yet long-term effectiveness of restoration remains uncertain because species choice and hydrogeomorphic settings are rarely evaluated together in relation to C and N sequestration. Here, we analyzed sediment C and N accumulation in 90 cores from natural and restored mangroves, seagrass beds, and tidal flats across estuarine and open-coast settings in South China, integrating an organic matter diagenetic model, multi-decadal dating, and stable-isotope source apportionment. These results provide a process-based basis for aligning species selection and restoration priorities with local hydrogeomorphic conditions, thereby improving the climate credibility of blue carbon restoration practice and policy.

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