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気候レジリエンスのための炭素隔離戦略：乾燥地域の持続可能な農業に向けたソルガム基盤のイノベーション

Carbon sequestration strategies for climate resilience: Sorghum‐based innovations for sustainable agriculture in dryland regions (原題)

Monir Idres Yahya Ahmed, Ahmed Khaled Hassan Mohammedali, Nasrein Mohamed Kamal, Takashi Okamoto, Takayoshi Ishii

Plants People Planet📚 査読済 / ジャーナル2026-10-21#気候科学Origin: JP経営インパクト: 調達リスク対象セクター: agriculture
DOI: 10.1002/ppp3.70294
原典: https://doi.org/10.1002/ppp3.70294
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🤖 gxceed AI 要約

日本語

乾燥適応型C4作物ソルガムの炭素隔離ポテンシャルを、生理・根系・バイオマス配分・土壌炭素・バイオエネルギー・育種・表現型解析・管理・政策の各面からレビューした。深根や残渣、菌根経路、保全的農法により長期的な土壌炭素貯留が期待できるが、長期検証が必要と指摘。炭素を意識した育種、農家中心の導入、残渣管理、そして農家と政策担当者が使える信頼性・低コスト・アクセス可能な炭素会計の整備を急務とする。

English

This review examines sorghum, a drought-adapted C4 crop, as a vehicle for carbon sequestration and climate-resilient dryland agriculture. It covers physiology, deep roots, biomass allocation, soil carbon, bioenergy, breeding, phenotyping, management and policy, finding potential for durable soil-carbon storage via deep roots, residues, mycorrhizal pathways and conservation practices, though long-term validation is still needed. The authors call for carbon-aware breeding, farmer-centered adoption, better residue management, and credible, affordable carbon accounting for farmers and policymakers.

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

農業由来の炭素貯留はScope 3・農産物サプライチェーンの排出削減やJ-クレジット型の土壌炭素クレジットに関わる論点。日本の食品・農業関連企業が調達段階の炭素会計を設計する際の基礎的知見として読める。

In the global GX context

Soil-carbon sequestration in agriculture connects to Scope 3 supply-chain accounting and emerging soil-carbon credit schemes under voluntary and compliance markets. The paper's emphasis on credible, affordable carbon accounting for farmers speaks directly to MRV and disclosure-infrastructure gaps in the land sector.

👥 読者別の含意

🔬研究者:乾燥地農業における土壌炭素貯留のメカニズムと育種・管理の研究課題を整理する際の参照点になる。

🏢実務担当者:農産物サプライチェーンのScope 3・土壌炭素クレジット検討時に、残渣管理や炭素会計の実務的論点を把握できる。

🏛政策担当者:農業炭素会計・MRV制度の設計において、農家が使える低コストで信頼性ある手法整備の必要性を示す。

📄 Abstract（原文）

Societal Impact Statement Climate change is intensifying heat, drought, and food insecurity, threatening dryland farming and carbon management worldwide. We reviewed research on sorghum, a drought‐adapted C4 crop, covering physiology, roots, biomass allocation, soil carbon, bioenergy, breeding, phenotyping, management, and policy. Sorghum can sustain production under water‐limited conditions and may support durable soil‐carbon storage via deep roots, residues, mycorrhizal pathways, and conservation practices, though long‐term validation is needed. These findings underscore sorghum's value for sustainable, climate‐resilient agriculture, and the urgent need for carbon‐aware breeding, farmer‐centered adoption, improved residue management, and credible, affordable, and accessible carbon accounting for farmers and policymakers in drylands globally. Summary Sorghum ( Sorghum bicolor L. Moench), a hardy C4 crop, uniquely addresses the dual challenges of rising atmospheric CO 2 and global food security. Its high biomass production, deep roots, and drought tolerance make it ideal for dryland farming. This review explores how sorghum captures atmospheric CO 2 , distributes it within the plant, and adds to soil carbon stores. It emphasizes processes such as photosynthesis efficiency, biomass allocation, and residue breakdown, which are affected by soil microbes and sorghum's residue chemistry. The review also explores the balance between grain yield and carbon storage, highlighting how breeding, genetics, and management can optimize these traits. Advances in breeding, gene editing, and high‐throughput phenotyping provide promising tools to enhance sorghum's carbon sequestration capacity. By identifying traits and management practices that can increase long‐term soil carbon storage while maintaining grain yield, this review highlights sorghum's potential to support climate‐change mitigation and food security.

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