Crop diversification in soybean production systems mitigates GHG emissions and enhances soybean yield under no-till management in the Brazilian Cerrado
ブラジルのセラード地域における不耕起管理下のダイズ生産システムにおける作付多様化がGHG排出を削減し収量を向上させる (AI 翻訳)
Jessica Heloiza Coutinho, Saul Ramos de Oliveira, Hilário Junior Almeida, Maria Eloá de Lima, Jorge Luiz Locatelli, Cimélio Bayer, Carlos Eduardo Pellegrino Cerri, Luiz Guilherme Santos de Oliveira, Edicarlos Damacena Souza
🤖 gxceed AI 要約
日本語
ブラジル・セラードの不耕起ダイズ生産システムにおいて、作付の多様化がCO2、CH4、N2Oの土壌排出に与える影響を評価。多様化したシステムはGHG排出を低減し、持続可能な農業に貢献する可能性を示す。
English
This study evaluates the impact of crop diversification on soil GHG emissions (CO₂, CH₄, N₂O) in no-till soybean systems in the Brazilian Cerrado. More diversified systems (e.g., with crotalaria and Urochloa) reduced N₂O emissions by up to 45% compared to simple soybean-maize succession, highlighting diversification as a strategy for sustainable 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
本研究成果は、日本国内の農業分野におけるGHG排出削減策として参考になる可能性があるが、ブラジル特有の生態系と栽培システムに基づくため直接的な適用には注意が必要。日本の温暖化対策や農林水産省の取り組みとの関連性は限定的。
In the global GX context
This paper provides empirical evidence on how agricultural diversification can mitigate GHG emissions, relevant to global discussions on sustainable agriculture and climate-smart farming. It may inform land-use policies in tropical regions but is less directly connected to corporate disclosure frameworks like ISSB or TCFD.
👥 読者別の含意
🔬研究者:Provides empirical data on GHG emissions from diversified cropping systems in tropical soils.
🏛政策担当者:Supports policies promoting crop diversification as a climate mitigation strategy in agriculture.
📄 Abstract（原文）
Abstract The aim of this study was to evaluate the impact of crop diversification on the soil emissions of CO₂, CH₄, and N₂O in soybean production systems under no-till management in the Brazilian Cerrado. Five production systems were analyzed: soybean–maize succession (S1); soybean–Urochloa ruziziensis succession (S2); soybean–crotalaria succession followed by maize intercropped with U. ruziziensis (S3); rotation of soybean and crotalaria followed by soybean and maize intercropped with U. ruziziensis for 12 months (S4); rotation of soybean and millet followed by soybean and crotalaria; and finally, maize intercropped with U. ruziziensis (S5). The highest greenhouse gas (GHG) emissions occurred during the rainy season, regardless of the production system. For CO₂, between 56% and 65% of the annual emissions occurred during this period. With respect to CH₄, system S3 presented the highest average emission (0.44 kg ha⁻¹), followed by S1 (0.37 kg ha⁻¹) and S5 (0.19 kg ha⁻¹). For N₂O, systems S1 and S2 emitted an average of 0.38 kg ha⁻¹ of N‒N₂O during the rainy season, which were 30%, 40%, and 45% greater than those observed in systems S3, S4, and S5, respectively. The more diversified agricultural systems proved to be a strategic and promising alternative for reducing GHG emissions in Cerrado soils, contributing to more sustainable and efficient agriculture.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.1007/s11027-026-10319-zfirst seen 2026-05-14 23:58:22
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