高規格農地整備と農業炭素性能：炭素削減と隔離への非対称的効果
High-Standard Farmland Construction and Agricultural Carbon Performance: Asymmetric Effects on Carbon Mitigation and Sequestration (原題)
Chunxia Zhu, Hailun Dai, Ruiyang Xiong, Wei Fan
🤖 gxceed AI 要約
日本語
中国の高規格農地整備（HSFC）が農業炭素性能（ACP）に与える影響を、炭素隔離性能（CSP）と排出削減性能（CMP）に分解して検証した。長江経済帯の都市パネル（2007–2022）を用いた準実験分析の結果、HSFCはACPとCSPを頑健に改善する一方、CMPへの効果は統計的に有意でなかった。効率変化と技術変化の両経路が寄与するが、その効果は主に隔離次元に集中し、規模管理や農業社会化サービスも削減効果をもたらさない。食料安全保障と農業脱炭素の整合には、削減と隔離を区別した政策設計が必要だと示唆する。
English
This study decomposes agricultural carbon performance (ACP) into carbon sequestration (CSP) and carbon mitigation (CMP) to test whether China's High-Standard Farmland Construction (HSFC) delivers both. Using a 2007–2022 city-level panel of the Yangtze River Economic Belt as a quasi-experiment, HSFC robustly improves ACP and CSP but has no significant effect on CMP. Efficiency and technological change drive gains mainly in sequestration; farmland scale management and socialized services do not produce strong mitigation. Findings highlight the need to separate mitigation from sequestration in aligning food security with agricultural decarbonization.
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
日本では農業脱炭素はJ-クレジット（水田メタン削減・土壌炭素貯留）やみどりの食料システム戦略と接点がある。本論文は「削減」と「隔離」を分けて評価する枠組みを提示し、国内の農地整備・環境政策の効果測定や炭素クレジット設計に示唆を与える。
In the global GX context
Globally, agricultural emissions and soil carbon are increasingly addressed under CSRD/ISSB Scope 3 land-use and nature-related disclosure, plus voluntary soil-carbon markets. This paper's decomposition of mitigation versus sequestration performance offers a measurement lens for verifying whether farmland policies deliver genuine climate benefits rather than offsetting one dimension with another.
👥 読者別の含意
🔬研究者:農業炭素性能を削減と隔離に分解する実証枠組みと、準実験デザインの適用例を提供する。
🏢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評価で、削減と隔離を混同しない指標設計の参考になる。
🏛政策担当者:農地政策の気候効果を測る際、削減と隔離を区別した目標設定・評価指標の必要性を示す。
📄 Abstract（原文）
High-Standard Farmland Construction (HSFC) is widely expected to support both food security and low-carbon agriculture in China, yet prevailing assessments treat agricultural carbon performance (ACP) as a single aggregate, obscuring the structural asymmetry between emission mitigation and carbon sequestration. This study examines whether HSFC simultaneously reduces agricultural emissions and enhances carbon sequestration. Using a city-level panel of the Yangtze River Economic Belt (2007–2022), this study treats HSFC as a quasi-experiment and decomposes ACP into carbon sequestration performance (CSP) and carbon mitigation performance (CMP). The results show that HSFC robustly improves overall ACP and CSP, while its effect on CMP is statistically insignificant. Further decomposition indicates that HSFC promotes ACP through both efficiency change and technological change, though these gains are concentrated primarily in the sequestration dimension. Mechanism analysis shows that farmland scale management improves both efficiency and technology adoption, whereas agricultural socialized services promote both channels with a particularly pronounced effect on technological progress; neither channel, however, delivers a strong mitigation effect. In addition, the CSP-enhancing effect is robust across mechanization levels and in major grain-producing areas, whereas it is statistically absent in the upstream reaches characterized by fragmented terrain, and no significant CMP effect emerges in any subgroup. These findings provide new evidence on the climate consequences of farmland policies and offer implications for better aligning food security with agricultural decarbonization.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/land15091662first seen 2026-09-10 04:46:28
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