農業生態系における土壌有機炭素隔離のための人工炭素資材：書誌計量分析とメカニズムレビュー
Artificial carbon materials for soil organic carbon sequestration in agroecosystems: A bibliometric analysis and mechanistic review (原題)
Pengfei Xu, Haibo Yu, Jinzhen Zhang, Ying Xu, Zhuqing Liu
🤖 gxceed AI 要約
日本語
人工炭素資材（ACM）による土壌有機炭素（SOC）隔離の研究動向を、書誌計量分析とメカニズムの批判的統合により評価したレビュー。ACM効果は時間依存的で、初期の溶脱・易分解性炭素損失と中期的な微生物・団粒再編が併存し、長期的な炭素永続性は鉱物結合と団粒回転に依存する。適用性は資材クラス、土壌の鉱物組成・pH・水分、原料・製造条件、施用量等に左右され、特にハイドロチャーと人工腐植物質の多年圃場データが不足している。
English
This review maps two decades of research on artificial carbon materials (ACMs) for soil organic carbon sequestration using bibliometric analysis and mechanistic synthesis. ACM effects are time-dependent: early leaching and labile-carbon loss coexist with intermediate microbial and aggregate reorganization, while long-term persistence hinges on mineral association and aggregate turnover. Applicability varies with ACM class, soil mineralogy, pH/redox, moisture, feedstock, application rate, and disturbance, with multi-year field evidence scarce for hydrochar and artificial humic substances.
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
日本では農地土壌炭素貯留がJ-クレジットや環境省の農地土壌炭素貯留事業で注目されるが、本論文はACMのメカニズムと限界を整理し、国内の実証・制度設計における科学的根拠として参照価値がある。特に多年圃場データの不足は、日本でのクレジット算定やモニタリング設計の課題と直結する。
In the global GX context
Globally, soil carbon sequestration is increasingly linked to carbon markets, MRV frameworks, and corporate Scope 3 land-sector accounting. This review's emphasis on time-dependent persistence and context-dependency provides a cautionary scientific basis for crediting soil carbon removals under emerging disclosure and offset regimes.
👥 読者別の含意
🔬研究者:ACMの効果を時間軸・土壌条件別に整理し、未解明のメカニズムと圃場実証のギャップを明確化する。
🏢実務担当者:農地へのACM施用を検討する際、短期・長期の炭素動態と土壌条件依存性を踏まえたリスク評価に活用できる。
🏛政策担当者:農地炭素貯留クレジットの設計において、多年圃場データの不足と永続性評価の不確実性を考慮すべき根拠を提供する。
📄 Abstract（原文）
Enhancing soil organic carbon (SOC) stocks and stability has attracted widespread attention because of its central role in the global carbon cycle. Declining SOC stocks in agroecosystems can impair soil fertility and crop productivity and weaken the soil carbon sink. Artificial carbon materials (ACMs) have been proposed as promising amendments for soil carbon sequestration and climate-change mitigation. However, existing studies have largely focused on changes in SOC stocks and greenhouse-gas emissions, whereas the physical, mineral-mediated, and microbial processes governing carbon persistence remain fragmented and insufficiently integrated. Moreover, the context-dependent performance of ACMs across diverse agroecosystems remains poorly understood. This review evaluates research trends and advances over the past two decades through bibliometric mapping and a critical synthesis of evidence concerning the effects of ACMs on SOC accumulation and mineralization, their underlying mechanisms, and their agricultural applicability. The central insight is that ACM effects are time dependent: early leaching and labile-carbon loss can coexist with intermediate microbial and aggregate reorganization, whereas longer-term persistence depends on mineral association and aggregate turnover. Applicability is constrained by ACM class, soil mineralogy and texture, pH/redox and moisture, feedstock and production conditions, application rate, disturbance, and the scarcity of multi-year field evidence for hydrochar and artificial humic substances.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jafr.2026.103343first seen 2026-10-05 05:25:54
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