ブルーカーボンの機能崩壊は物理的な湿地の後退に先行する
Blue carbon functional collapse precedes physical marsh retreat (原題)
Yuhan Wang, Simon M. Mudd, Giovanni Coco, Karin R. Bryan, Andrea D’Alpaos, Luzhen Chen, Ian Townend, Huan Li, Zeng Zhou
🤖 gxceed AI 要約
日本語
本研究は、潮汐湿地の炭素吸収源が物理的な後退より先に機能崩壊することを示す。中国江蘇省の現地データとモデルを用い、フリンジ効果により炭素源へ転換し、数ヶ月から10年の遅れで気候債務が蓄積することを明らかにした。
English
This study shows that tidal marsh carbon sinks can functionally collapse before physical retreat. Using field data from Jiangsu coast and modeling, it reveals that fringing effects cause a shift to carbon source, with a lag of months to a decade, implying a growing climate debt.
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
日本は沿岸生態系の保全とブルーカーボン戦略を推進しており、本研究成果は日本のブルーカーボン生態系の管理やJブルークレジット制度の設計に示唆を与える。
In the global GX context
Globally, blue carbon ecosystems are key for climate mitigation; this paper challenges assumptions of geomorphic stability, informing international conservation and carbon accounting frameworks.
👥 読者別の含意
🔬研究者:Provides evidence that functional collapse precedes physical retreat, important for carbon budget modeling.
🏢実務担当者:Highlights need for pre-emptive management of coastal ecosystems to avoid carbon source transitions.
🏛政策担当者:Suggests that conservation strategies should not rely solely on shoreline retreat indicators.
📄 Abstract（原文）
Abstract Blue carbon ecosystems are critical for climate mitigation, yet their persistence is threatened by global coastal erosion. Conservation strategies often rely on observing shoreline retreat as an indicator of ecosystem vulnerability, implicitly assuming geomorphic stability ensures carbon retention. Here we show that the functional collapse of tidal marsh carbon sinks can occur significantly before physical retreat becomes evident. Combining field evidence from the dynamic Jiangsu coast with process-based modelling, we reveal that fringing effects (i.e., intense hydro-geomorphic disturbances that trigger cascading feedback) drive an unexpected transition from carbon sink to source where carbon losses outpace burial (up to 119%). Crucially, we identify a lag of months to a decade between marsh retreat and the sink–source transition, suggesting that apparent biogeomorphic stability masks a growing climate debt. Global carbon budgets may overestimate coastal storage and effective management requires pre-emptive action prior to development of a net local source.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s43247-026-03971-5first seen 2026-08-29 04:43:53
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