Carbon footprint-yield relationships in sorghum as influenced by agronomic input intensity
農業投入強度がソルガムの炭素フットプリントと収量関係に与える影響 (AI 翻訳)
Zain ul Sajjad
🤖 gxceed AI 要約
日本語
ソルガム生産における投入強度の異なる3段階（低、中、高）の影響を2シーズンにわたり調査。収量は増加したが、炭素排出も増加。収量スケールの炭素フットプリントは286-303 kg CO2-eq/haとほぼ一定で、投入強度と炭素効率の間にはトレードオフがないことを示した。
English
This study examined the effect of low, medium, and high agronomic input intensities on sorghum grain yield and carbon footprint over two growing seasons. Higher inputs increased yield but also absolute emissions, while yield-scaled carbon footprint remained constant (286-303 kg CO₂-eq ha⁻¹), indicating no loss in carbon efficiency with intensification. This provides practical insights for sustainable intensification in semi-arid cereal production.
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
日本の農業（水田中心）とは直接関係が薄いが、半乾燥地の作物生産における炭素効率の知見は、国連の持続可能な農業目標やJクレジット制度における農業分野の排出削減方法論に間接的に示唆を与える。
In the global GX context
This paper contributes to the global understanding of carbon efficiency in cereal production, particularly relevant for sustainable intensification strategies in semi-arid regions. The finding that yield-scaled carbon footprint does not worsen with intensification supports climate-smart agriculture policies and could inform life-cycle assessment methodologies for crop systems.
👥 読者別の含意
🔬研究者:Provides empirical evidence on the yield-emission relationship under varying input intensities, valuable for agricultural carbon modeling and LCA.
🏢実務担当者:Offers data to guide input optimization decisions without worsening carbon efficiency, but limited to sorghum in semi-arid conditions.
📄 Abstract（原文）
The challenge of significantly increasing food demand while reducing greenhouse gas emissions represents a two-pronged challenge for sorghum production, but the relationship between agronomic intensity and carbon efficiency remains unresolved. The absence of integrated multi-season analyses limits the development of climate-smart management strategies. In this research paper, the researcher examined the impact of graded input levels on grain yield, biomass production, and the carbon footprint of sorghum under semi-arid conditions. A randomized complete block experiment was conducted across two consecutive growing seasons using low-, medium-, and high-input regimes, and fertilizer consumption, mechanization, and agrochemical inputs were measured. The absolute and yield-scaled carbon footprints were calculated using life cycle assessment, and linear mixed-effects models were employed to study treatment effects across seasons. Intensification increased grain yield (3.12 to 5.44 t ha⁻¹) and above-ground biomass (7.73 to 13.63 t ha⁻¹) significantly (p < 0.001), whereas absolute carbon emissions increased from 891 to 1645 kg CO₂-eq ha⁻¹. The carbon footprint scaled by yield remained relatively constant at 286–303 kg CO₂-eq ha⁻¹, indicating a structural relationship between biomass formation and emissions. These results indicate that intensification shifts the production curve along a predictable yield-emission trajectory without altering carbon efficiency, offering practical conclusions for sustainable intensification practices in semi-arid cereal production.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.62088/timbb/10.1.4first seen 2026-07-01 05:14:52 · last seen 2026-07-01 05:15:06
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