ワッデン海の潮間帯アマモ場のブルーカーボン潜在能力は限定的 – 潮汐盆地におけるケーススタディ
Limited blue carbon potential of intertidal seagrass meadows in the Wadden Sea – a case study in a tidal basin (原題)
Veronika Mohr, Corinna Schrum Corinna Schrum, Wenyan Zhang
🤖 gxceed AI 要約
日本語
ワッデン海のシルト・ロモ湾を対象に、結合型水理・生態・形態動態モデルを用いてアマモ場の炭素吸収・隔離能を定量化した。年間炭素吸収量は895±465 tC、堆積物への隔離率は約24%で、従来の推定より低いことを示した。アマモ場の連続性が中長期的な炭素隔離に重要であると結論付けた。
English
Using a coupled hydro-eco-morphodynamic model, this study quantifies carbon uptake and sequestration in seagrass meadows of the Wadden Sea's Sylt-Rømø Bay. Annual carbon uptake is 895±465 tC, with only ~24% stored in sediments, lower than previous estimates. The continuity of seagrass meadows is crucial for decennial to centennial carbon sequestration.
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
日本ではブルーカーボン生態系（アマモ場、藻場）が気候変動対策として注目されており、本研究成果は日本のブルーカーボン算定方法の精緻化に示唆を与える。ただし、地域固有の環境条件が異なるため、直接適用には注意が必要。
In the global GX context
This study provides a rigorous quantitative framework for blue carbon assessment, relevant to global efforts in natural climate solutions and carbon accounting. It highlights the need for site-specific assessments and the importance of ecosystem continuity, informing international blue carbon methodologies.
👥 読者別の含意
🔬研究者:Provides a modeling approach for blue carbon assessment and highlights the importance of hydro-morphodynamic processes in seagrass carbon sequestration.
🏢実務担当者:Offers insights for coastal ecosystem management and blue carbon project development, emphasizing realistic sequestration rates.
🏛政策担当者:Informs blue carbon policy and carbon accounting standards with evidence of limited sequestration potential in dynamic tidal environments.
📄 Abstract（原文）
Abstract. Seagrass meadows are widely recognized as a key blue carbon ecosystem. However, their sequestration potential varies remarkably between species and regions. In the world’s largest tidal flat system, the Wadden Sea, the highly dynamic hydro-morphological environment affects carbon cycling, making a quantitative analysis of the sequestration potential of seagrass meadows extremely challenging. To fill this gap, we applied a coupled hydro-eco-morphodynamic model which resolves dynamic changes of seagrass to estimate carbon uptake and sequestration rates in a tidal basin of the Wadden Sea, the Sylt-Rømø Bay, as a case study. We further applied particle tracking to assess the fate of shed seagrass leaves. Our results indicate that the seagrass meadows in the bay have a carbon uptake of 895 ± 465 tC yr−1 (or 40.8 ± 7.7 gC m−2 yr−1). Approximately 24 % (9.8 ± 1.6 gC m−2 yr−1) of the annually captured carbon is stored in the meadow sediments, with a major part originating from the below-ground biomass. Approximately 28 % of the seagrass biomass is exported from the meadows as flotsam, and about a fifth of that (~6 % of the total biomass) is deposited in salt marshes. The remaining seagrass biomass (~48 %) are either deposited as POC outside of the seagrass meadows, remineralized or grazed. Overall, we estimate a sequestration rate of 10.1 ± 1.5 gC m−2 yr−1 (including both autochthonous and allochthonous carbon) within the seagrass meadows, which is lower than previous estimates for both the seagrass in the region and global averages. Our findings also show that the continuity of seagrass meadows is crucial for the mid-term (decennial), and likely also for the long-term (centennial or longer) sequestration of organic carbon in the sediment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.5194/bg-23-5715-2026first seen 2026-08-22 04:59:00
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