Ecosystem carbon storage including soil to 3 m depth and carbon increment along a young mangrove restoration in Central Thailand
タイ中部の若いマングローブ再生地における3m深までの生態系炭素貯留と炭素増加 (AI 翻訳)
Nada Yimatsa, Yuta Watanabe, Morimaru Kida, Miyuki Kondo, Suthathip Umnouysin, Vilanee Suchewaboripont, Chadtip Rodtassana, Yasuo Iimura, Shinpei Yoshitake, Nobuhide Fujitake, Sasitorn Poungparn, Toshiyuki Ohtsuka
🤖 gxceed AI 要約
日本語
タイ中部の10〜14年生のマングローブ再生地で、地上部・根・3m深までの土壌炭素を定量化。総生態系炭素は樹齢とともに増加し、土壌が80%以上を占めた。深層土壌を含めることで炭素評価が変わり、若い再生地が重要な炭素吸収源であることを示した。
English
This study quantified total ecosystem carbon (TEC) stocks in a 10-14 year mangrove restoration in Thailand, including soil to 3 m depth. TEC increased with stand age, with soil organic carbon comprising >80% of stocks. Including deep soils significantly altered carbon estimates, highlighting young restorations as emerging carbon sinks.
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の評価が進むが、深層土壌を含む炭素貯留の定量化は不十分。本研究成果は、Jブルークレジット制度や沿岸生態系の炭素評価手法の精緻化に示唆を与える。
In the global GX context
Globally, blue carbon accounting often omits deep soils, leading to underestimation of carbon stocks. This study provides robust evidence for including deep soil layers in carbon assessments, informing international frameworks like IPCC guidelines and blue carbon methodologies.
👥 読者別の含意
🔬研究者:Provides empirical evidence on deep soil carbon dynamics in mangrove restorations, useful for refining carbon accounting models.
🏢実務担当者:Highlights the importance of including deep soils in carbon stock assessments for blue carbon projects, potentially affecting carbon credit calculations.
🏛政策担当者:Supports the inclusion of deep soil carbon in national greenhouse gas inventories and blue carbon policy frameworks.
📄 Abstract（原文）
Mangrove restoration is being increasingly employed to restore degraded coastal ecosystems and strengthen blue carbon (C) sequestration. Nevertheless, total ecosystem carbon (TEC) evaluations often omit deep soils, causing inaccurate estimates of C stored in restored mangroves. This study investigated a 10–14-year chronosequence restoration in Central Thailand using Avicennia alba to quantify TEC stocks across aboveground biomass, coarse and fine roots (≤2 mm in diameter), and soil organic carbon (SOC) at a depth of 3 m, as well as changes in total ecosystem carbon (ΔTEC). TEC stocks increased from 695.6 to 828.2 Mg C ha -1 with stand age, with SOC accounting for >80% of total stocks. The ΔTEC was substantial—21.60 Mg C ha -1 yr -1 at 1 m—and was largely associated with SOC, whereas the increase in biomass C was estimated at 10.11 Mg C ha -1 yr -1 . Depth-integrated estimates indicated higher values when deeper soil layers were included. SOC elevated with stand age throughout the 0–3 m profile; increases up to 2 m were associated with vegetation-derived inputs, as indicated by δ 13 C shifts and fine-root presence. However, soils at 2–3 m retained estuarine signatures that were not clearly associated with vegetation-derived inputs. This study highlights the importance of including deep-soil layers in C assessments and emphasizes that interpretations of ecosystem C change should consider depth-dependent controls. These findings emphasize the importance of young mangrove restorations as emerging C sinks, particularly through substantial soil C storage.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ecss.2026.110158first seen 2026-08-09 05:14:15
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