マングローブ林のエッジ部における炭素貯留量の顕著な減少
Significant Decline in Carbon Storage at the Edges of Mangrove Forest (原題)
Ziqi Zhao, Mingming Jia, Luhe Wan, Rong Zhang, Chuanpeng Zhao, Chunying Ren, Yanbiao Xi, Tingyu Lu, Zongming Wang
🤖 gxceed AI 要約
日本語
ラムサール保護下のマングローブ林を対象に、断片化に伴うエッジ効果が炭素貯留量に与える影響を世界規模で初めて定量評価した。約63%の林分でエッジ効果の到達距離は100m未満だが、その領域ではバイオマスが平均5.15%減少する。エッジ効果を無視すると炭素貯留量を約2.08Tg C過大評価することになり、ブルーカーボン評価の精度向上が急務である。
English
First global-scale assessment of how edge effects in fragmented Ramsar-protected mangroves bias blue carbon estimates. Edge penetration is under 100 m in ~63% of forests, where biomass drops 5.15% on average. Ignoring edges overestimates carbon stocks by ~2.08 Tg C, underscoring the need for refined blue carbon accounting.
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
日本はマングローブ分布の北限に近く、J-クレジットやブルーカーボン生態系の保全・算定に関心が高い。本知見は国内の沿岸生態系炭素クレジット算定の精度管理に示唆を与える。
In the global GX context
As blue carbon enters voluntary markets and national inventories, this paper shows that spatial edge effects can materially bias stock estimates. Relevant to refining methodologies under IPCC guidelines and emerging blue carbon crediting frameworks.
👥 読者別の含意
🔬研究者:断片化がブルーカーボン推定に与えるバイアスを定量化した基準研究として参照価値が高い。
🏢実務担当者:ブルーカーボンクレジットや生態系保全プロジェクトの炭素算定時にエッジ効果補正を検討する根拠となる。
🏛政策担当者:国別温室効果ガスインベントリや保全政策における沿岸生態系炭素評価手法の精緻化に資する。
📄 Abstract（原文）
Abstract Quantitative analysis of blue carbon stored in mangrove ecosystems is essential for understanding their role in climate change mitigation. However, the impacts of edge effects in fragmented mangrove forests are often overlooked in large‐scale blue carbon assessments. In this study, we present the first global‐scale quantitative assessment of how edge effects influence carbon storage in Ramsar‐protected mangrove forests, emphasizing both the necessity of incorporating these effects into carbon assessments and their variability across different fragmentation gradients. Specifically, we identified three distinct patterns of edge effects along fragmentation gradients, each further divided into six scenarios based on biomass decay rate dynamics. Our results indicate that the estimated edge‐effect penetration distances were less than 100 m in approximately 63.37% of the studied Ramsar‐protected mangrove forests. In these edge zones, biomass declines by an average of 5.15% compared with interior zones. Neglecting such edge effects has likely led to an overestimation of Ramsar‐protected mangrove carbon stocks by about 2.08 Tg C. These findings underscore the importance of accurately accounting for edge effects in mangrove carbon assessments, as their omission can substantially bias carbon storage estimates and, in turn, hinder effective management of blue carbon ecosystems.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1029/2026ef008723first seen 2026-09-12 05:07:26
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