Global Patterns on Nutrient Release During Leaf Litter Decomposition in Blue Carbon Ecosystems
ブルーカーボン生態系における落葉分解時の栄養塩放出の世界的パターン (AI 翻訳)
Xiaoguang Ouyang, Erik Kristensen, Martin Zimmer, Carol Thornber, Zhifeng Yang, Shing Yip Lee
🤖 gxceed AI 要約
日本語
本論文は、マングローブ、干潟、海草藻場などのブルーカーボン生態系における落葉分解時の窒素・リンの放出を、全球メタ分析と数値モデルを用いて解析。温暖化に伴い栄養塩放出速度が増加し、特にマングローブや干潟でその影響が大きいことを示した。底生動物の活動低下が栄養塩放出を減らす可能性も指摘。
English
This paper examines nitrogen and phosphorus release during leaf litter decomposition in blue carbon ecosystems (mangroves, tidal marshes, seagrasses) using a global meta-analysis and modeling. It finds that warming will increase nutrient release rates, especially in mangroves and marshes, while reduced macrobenthos activity may offset some of this increase.
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
ブルーカーボン生態系は日本のGHGインベントリでも森林・海洋吸収源として注目されるが、栄養塩動態は直接的な排出削減や開示には結び付きにくい。ただし、気候変動適応策や生態系評価の基礎知見として参照価値がある。
In the global GX context
Blue carbon ecosystems are increasingly recognized in global climate mitigation frameworks. This study provides mechanistic understanding of nutrient cycling under warming, relevant for IPCC assessments and conservation policy. However, it does not directly address corporate disclosure or transition finance.
👥 読者別の含意
🔬研究者:Provides global empirical patterns and models for nutrient release in blue carbon ecosystems useful for climate-ecosystem modelers.
🏛政策担当者:Informs coastal management and conservation priorities under climate change, particularly regarding nutrient cycling and blue carbon storage.
📄 Abstract（原文）
Abstract Nutrient release during litter decomposition is the mineralization of organically bound nutrients into inorganic and soluble forms. However, it remains unknown whether warming increases macro‐nutrient release during leaf litter decomposition. Through a global meta‐analysis, we incorporated the relationships between nutrient release rate constants ( k NP ) and leaf litter decomposition rate constants in coastal blue carbon ecosystems (BCE) into numerical models to forecast nutrient release. Average k NP ranged from 0.006 to 0.035 d −1 for nitrogen and 0.003–0.019 d −1 for phosphorus with lower values in temperate than (sub)tropical zones. Our findings suggest that nutrient release during leaf litter decomposition will increase with rising temperatures under two scenarios: the IPCC representative concentration pathway 8.5 and the IPCC 1.5–4°C warming compared with the pre‐industrial period. Leaf litter nutrient release in mangrove forests and tidal marshes is more sensitive to warming than that in seagrass beds. Leaf litter processing and consumption by benthic fauna during decomposition will lead to lower nutrient release in 2100 compared to 2050 due to global warming. We conclude that warming will intensify, while decreased macrobenthos activity will reduce, leaf litter nutrient release.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1029/2025gb009005first seen 2026-07-23 05:22:49
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