空間的に明示的なバイオ炭導入が中国主要作物の食料安全保障を高め炭素中立に貢献する
Spatially Explicit Biochar Deployment Enhances Food Security and Advances Carbon Neutrality in China's Staple Crops (原題)
Ruiyu Bi, Yawen Huang, Wei Ren, Zhaoqiang Han, Jinyang Wang, Shuwei Liu, Jianwen Zou
🤖 gxceed AI 要約
日本語
中国の主要作物を対象に、土壌・作物・気候・社会経済的制約を統合した空間的多基準分析でバイオ炭施用優先指数（BAPI）を開発。優先地域への段階的配分により、作物収量16.2〜41.6 Mt/年増、土壌炭素隔離311〜326 Mt CO2/年、GHG削減と経済収益315〜582 US$/ha/年を同時に達成可能と示した。農業分野での炭素中立と食料安全保障の相乗効果を定量化した研究。
English
Using spatially explicit multi-criteria analysis, the authors developed a Biochar Application Priority Index (BAPI) for China's staple crops. Prioritized deployment of ~180 Mt/yr biochar could raise yields by 16.2-41.6 Mt/yr, sequester 311-326 Mt CO2/yr in soil, and deliver economic returns of US$315-582/ha/yr. The study quantifies co-benefits for food security and carbon neutrality in agriculture.
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
農業分野の脱炭素は日本のGX戦略でも重要課題であり、土壌炭素隔離やバイオ炭施用の空間最適化手法は、日本の農地管理やJ-クレジット制度における農業由来炭素クレジット設計に示唆を与える。SSBJや有報でのScope 3・農業サプライチェーン排出管理にも関連。
In the global GX context
This work contributes to the growing body of spatially explicit carbon-removal and agricultural mitigation research relevant to ISSB/CSRD disclosure of land-sector emissions and removals. It offers a replicable framework for prioritizing biochar deployment that could inform national carbon-neutrality pathways and carbon credit methodologies globally.
👥 読者別の含意
🔬研究者:空間的多基準分析による炭素除去技術の最適配置評価手法として、農業・土地利用モデル研究に応用可能。
🏢実務担当者:農業・食品企業がサプライチェーン上流の土壌炭素・GHG削減策を検討する際の優先地域選定や投資判断に活用できる。
🏛政策担当者:農業由来の炭素クレジット設計やバイオ炭普及支援策、食料安全保障と気候目標の統合政策立案に示唆を提供。
📄 Abstract（原文）
Abstract Biochar offers significant potential to improve soil quality, enhance crop productivity, and alleviate environmental risks, all of which are central to sustainable food systems under global change. However, realizing these benefits at scale requires strategic, spatially explicit deployment that considers complex soil‐crop‐climate‐biochar interactions and socioeconomic constraints. Here, we developed an objective‐oriented Biochar Application Priority Index (BAPI) for China's major staple crops using spatially explicit multi‐criteria analysis. We identified high‐priority zones that deliver multiple benefits for crop yield enhancement, soil carbon sequestration, and greenhouse gas (GHG) emissions mitigation, covering 47.1% of upland maize and wheat croplands and 74.3% of rice areas. Guided by the BAPI, approximately 180 Mt yr −1 of biochar supply is sequentially allocated to higher‐priority areas, resulting in yield increases of 16.2–41.6 Mt yr −1 , soil carbon sequestration of 311–326 Mt CO 2 yr −1 , and GHG mitigation of −2.82–8.42 Mt CO 2 ‐eq yr −1 under different scenarios. A strategy employing multi‐objective weighted gradient application rates can achieve substantial co‐benefits for crop yield and climate change mitigation, while delivering economic returns of US$315–582 ha −1 yr −1 . Our work highlights how targeted biochar deployment can help China achieve synergistic progress in food security, agricultural sustainability, and carbon neutrality.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1029/2026ef008308first seen 2026-09-30 04:55:25
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