ブルーカーボン生態系における外来性粒状有機炭素：会計、安定性、政策への影響
Allochthonous particulate organic carbon in blue carbon ecosystems: Implications for accounting, stability, and policy (原題)
Anirban Akhand, Inés Mazarrasa, Stacey M. Trevathan‐Tackett, Khan M. G. Mostofa, Abhra Chanda, Hongbin Liu, Hiroshi Sakugawa, Si‐Liang Li, Cong‐Qiang Liu, Catherine E. Lovelock, Paul Lavery, Hilary Kennedy, Peter I. Macreadie
🤖 gxceed AI 要約
日本語
ブルーカーボン生態系（BCE）の土壌有機炭素の56±25%が外来性粒状有機炭素（POC）であることを102研究のレビューで示した。外来性POCの炭素会計への組み込みは過大評価や二重計上のリスクがあるが、安定化の役割から正当化できる。政策枠組みへの反映には、環境条件に応じた安定性の理解が不可欠。
English
A review of 102 studies finds that 56±25% of soil organic carbon in blue carbon ecosystems is allochthonous particulate organic carbon (POC). Including it in carbon accounting risks overestimation and double-counting, but its role in stabilizing carbon justifies inclusion. Better understanding of POC stability under varying conditions is needed for policy frameworks.
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、Jブルークレジット制度の設計に示唆を与える。外来性POCの取り扱いは、日本の沿岸生態系における炭素会計の精度向上に寄与する。
In the global GX context
This review informs global blue carbon accounting frameworks, such as those under the IPCC and voluntary carbon markets. It highlights the need for standardized methods to avoid double-counting and ensure credibility of blue carbon credits, relevant to international climate policy.
👥 読者別の含意
🔬研究者:Provides a comprehensive synthesis of allochthonous POC in blue carbon ecosystems, identifying research gaps for stability and accounting.
🏢実務担当者:Offers guidance on whether to include allochthonous POC in blue carbon projects, affecting carbon credit calculations and project design.
🏛政策担当者:Highlights the policy implications of including allochthonous POC in carbon accounting, relevant for designing robust blue carbon frameworks.
📄 Abstract（原文）
Blue carbon ecosystems (BCEs) store a significant amount of organic carbon (OC) in their soils, including OC sequestered by other ecosystems and transported into these ecosystems, referred to as allochthonous OC. This study reviews the state-of-the-art knowledge on the abundance and sources (including still unexplored ones) of allochthonous particulate organic carbon (POC) and reviews the ways allochthonous POC is managed under the current blue carbon policy frameworks for carbon benefits accounting in blue carbon restoration and conservation projects. Based on a review of 102 studies, we find that 56 ± 25% of the soil organic carbon (SOC) deposits in BCEs are allochthonous POC, most commonly identified as originating from terrestrial ecosystems, seston and macroalgae. Whether allochthonous POC should be included in blue carbon accounting is a matter of debate among the scientific community, due to the risks of overestimating carbon benefits and double-counting. Consequently, it is often excluded from voluntary carbon markets, but its inclusion can be justified given the role of BCEs in stabilising OC that may otherwise be remineralised. Based on existing knowledge, a deeper understanding of the stability and behaviour of different types of allochthonous POC under varying environmental conditions is needed to assess whether and to what extent these fractions can be counted toward carbon benefits.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jenvman.2026.130658first seen 2026-08-23 04:49:41
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