ブラジル熱帯酪農システムにおける炭素収支
Carbon balance in the Brazilian tropical dairy farming system (原題)
Sophia Aparecida Morro Chamilete, Matheus Deniz, A. L. M. Novo, P. P. A. Oliveira, A. Berndt, Teresa Cristina Alves, RENATA TIEKO NASSU
🤖 gxceed AI 要約
日本語
ブラジルの熱帯酪農システムを対象に、IPCCとLEAPガイドラインに沿ってGHG排出と除去を農場単位で統合評価した。高生産体系（HPS）は規模・生産効率が高く排出原単位が低い一方、中生産体系（MPS）は土壌炭素隔離や樹木バイオマスによる除去原単位が高い。両者は排出削減と除去強化という補完的経路で低炭素酪農に寄与する。
English
This study integrates GHG emissions and removals into a farm-scale carbon balance for Brazilian tropical dairy systems, comparing high (HPS) and medium (MPS) production levels using IPCC and LEAP guidelines. HPS shows lower emission intensity due to greater productive efficiency, while MPS achieves higher removal intensity via soil carbon sequestration and tree biomass. Both pathways complement each other for low-carbon dairy development.
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
日本では酪農・畜産のGHG算定やScope3カテゴリ1（購入物品）算定に関心が高く、農場単位の炭素収支評価手法は国内畜産由来排出の把握や削減計画立案の参考になる。SSBJ開示でサプライチェーン排出が問われる食品・乳業企業にとって示唆がある。
In the global GX context
While focused on Brazil, this farm-scale carbon balance approach informs global agricultural GHG accounting under IPCC and LEAP frameworks, relevant to Scope 3 Category 1 (purchased goods) and land-sector removals in corporate climate disclosure. It contributes empirical evidence on how intensification and carbon sequestration can jointly support sectoral mitigation targets.
👥 読者別の含意
🔬研究者:農場単位で排出と除去を統合評価する手法と、生産性と炭素収支の関係に関する実証的知見を提供する。
🏢実務担当者:乳業・食品企業がサプライチェーン排出（Scope3）や土地由来除去を評価する際の農場レベル算定の参考になる。
🏛政策担当者:畜産部門の緩和策設計において、生産性向上と炭素隔離を組み合わせた政策インセンティブの必要性を示唆する。
📄 Abstract（原文）
The expected increase in the global population is projected to raise the demand for milk and dairy products by 2050, highlighting the need to improve production efficiency while mitigating environmental impacts. This study evaluated the carbon balance of Brazilian tropical dairy farming systems by integrating greenhouse gas (GHG) emissions and removals into a single farm-scale assessment, focusing on two milk production levels during lactation: high (HPS, ≥8500 kg milk cow −1 year −1 ) and medium production potential (MPS, <8500 kg milk cow −1 year −1 ). Emissions and removals were estimated following the Intergovernmental Panel on Climate Change and the Livestock Environmental Assessment and Performance Partnership guidelines. Compared with MPS, HPS showed larger areas, herd sizes, and milk production, reflecting greater productive efficiency associated with more effective management. Consequently, HPS exhibited lower GHG emission intensity from enteric fermentation, manure management, and feed, resulting in a lower overall emission intensity. In contrast, MPS attained higher GHG removal intensity, mainly through soil carbon sequestration associated with land-use change and tree biomass. Despite this greater removal capacity, the higher emission intensity of MPS resulted in a less favorable overall carbon balance than HPS. Both systems therefore contribute to low-carbon dairy development through complementary pathways: HPS primarily by reducing emissions per unit of product, and MPS primarily by enhancing carbon removals. Integrating emission-reduction strategies with practices that enhance carbon sequestration is required to advance low-carbon milk production and support the sector's mitigation goals.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jclepro.2026.149402first seen 2026-09-23 05:05:49
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