Global patterns of stabilized soil organic carbon and their potential implications for climate mitigation
安定化土壌有機炭素の全球パターンと気候緩和への潜在的な影響 (AI 翻訳)
Zhaoxin LI, Ziheng Zou, Xiaobo Liu, Rattan Lal, Tianyou Ye, Qidong Yu, Fadong Li, Gang Chen, Ruoya Ma, Jinyang Wang, Hubert Hirwa, Yakov Kuzyakov, Pete Smith, Shuwei Liu, Jianwen Zou
🤖 gxceed AI 要約
日本語
本研究は、機械学習を用いて世界の表層1mの安定化土壌有機炭素（SOC）をマッピングし、総炭素量1304Pg、全土壌炭素の約半分が寒冷地や湿地に集中することを明らかにした。また、土壌負の炭素ポテンシャル（全炭素中の安定化炭素割合）を指標として提案し、これが高いほど温室効果ガス排出削減や経済効果に寄与することを示した。
English
This study maps global stabilized soil organic carbon in the top one meter using machine learning, estimating 1304 Pg C—about half of total soil carbon—concentrated in wetlands and cold regions. It introduces a metric of soil negative carbon potential, showing that higher stabilization efficiency correlates with lower emissions and better economic outcomes with minimal yield trade-offs.
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、2050年カーボンニュートラル達成に向けて農地土壌への炭素貯留が注目されているが、本研究成果は土壌管理による炭素固定ポテンシャルの定量化に寄与する。また、SSBJや有報での自然関連情報開示が進む中、土壌炭素データのベンチマークとして活用可能。
In the global GX context
Globally, this study provides crucial benchmarks for Earth system models and soil-based climate mitigation strategies, relevant to the IPCC and UNFCCC processes. It offers a standardized metric for assessing soil carbon stabilization efficiency, which can inform national greenhouse gas inventories and land management policies.
👥 読者別の含意
🔬研究者:Provides a global benchmark of stabilized soil carbon stocks and a new metric (soil negative carbon potential) for evaluating carbon stabilization efficiency.
🏢実務担当者:Offers insights for land managers and agricultural companies on how soil management practices can enhance carbon storage without sacrificing yields.
🏛政策担当者:Supports the development of soil carbon sequestration strategies in climate pledges, with a clear indicator for monitoring mitigation progress.
📄 Abstract（原文）
Stabilized soil organic carbon is the most persistent fraction of soil carbon and plays a key role in long-term climate mitigation, yet its global distribution remains poorly constrained. Here we integrate georeferenced soil profiles with a machine learning model to map stabilized soil carbon in the upper one meter of soils worldwide. Global stabilized soil carbon is estimated at 1304 petagrams of carbon, representing about half of total soil carbon and concentrated in wetlands and cold-temperate regions. Soil properties explain most of the spatial variation, whereas climate and management effects show threshold responses. We further define soil negative carbon potential, the proportion of stabilized carbon in total soil carbon, as an indicator of stabilization efficiency and mitigation potential. Increasing this metric is associated with lower greenhouse gas emissions and improved economic outcomes with minimal yield trade-offs. These results provide benchmarks for Earth system models and inform soil-based climate mitigation strategies. Stabilized soil organic carbon totals 1304 pentagrams carbon globally about half of total soil carbon concentrated in wetlands and cold regions shown by mapping upper one-meter soils using georeferenced soil profiles and high precision machine learning models.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1038/s43247-026-03634-5first seen 2026-05-21 04:53:30
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gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。