Effect of carbon availability, phosphorus, and water soil content on GHG emissions: insights from a soil incubation study
炭素利用可能性、リン、土壌水分が温室効果ガス排出に与える影響：土壌インキュベーション研究からの知見 (AI 翻訳)
Berta Singla Just, Laura Díaz-Guerra, Vaibhav Shrivastava, Nagore Guerra-Gorostegui, Laia Llenas, Rosa Vilaplana, Erik Meers, Ana Alejandra Robles-Aguilar
🤖 gxceed AI 要約
日本語
バイオ由来肥料（BBF）の温室効果ガス（GHG）排出に及ぼす影響を調べるため、炭素質の異なる2種類の豚糞由来BBFを用いて28日間の土壌インキュベーション実験を実施。炭素の利用可能性と土壌水分がCO2、N2O、CH4フラックスに強く影響することを示し、気候スマート農業への示唆を与える。
English
A 28-day soil incubation study examined how carbon availability, phosphorus, and moisture affect GHG emissions from bio-based fertilisers. Results show that labile carbon boosts CO2 emissions significantly, while recalcitrant carbon can lead to net N2O sinks. Carbon quality is key for climate-smart fertilisation in circular 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
日本の農業でもバイオ由来肥料の利用が進んでおり、本研究成果は施用方法の最適化やGHG排出削減に寄与する可能性がある。特に、炭素質の違いを考慮した肥料設計は、日本における気候変動対策と循環型農業の両立に示唆を与える。
In the global GX context
As bio-based fertilisers gain traction globally, this study provides critical empirical data linking carbon quality to GHG emissions. The findings support the development of low-emission fertiliser strategies, relevant for climate-smart agriculture under circular economy frameworks.
👥 読者別の含意
🔬研究者:Provides experimental evidence on carbon quality effects on GHG fluxes, useful for modelling and improving fertiliser formulations.
🏢実務担当者:Offers actionable insights for fertiliser producers to optimise product composition for lower emissions.
🏛政策担当者:Informs agricultural policy on promoting climate-smart fertilisers and nutrient recovery technologies.
📄 Abstract（原文）
Bio-Based Fertilisers (BBFs) derived from nutrient recovery are increasingly promoted as sustainable alternatives to synthetic inputs. However, their effects on greenhouse gas (GHG) emissions remain poorly understood, especially how carbon quality interacts with phosphorus (P) availability and soil moisture to influence CO 2 , N 2 O, and CH 4 fluxes. A 28-day incubation experiment was conducted using a low-phosphorus agricultural sandy loam soil amended with two pig slurry–derived BBFs that differ in carbon lability: a labile liquid fraction (MFR) and a more recalcitrant solid fraction (BIO). Treatments were applied with or without mineral phosphorus addition and incubated at 55%, 70%, and 85% water-holding capacity. The results showed that carbon quality was the main factor affecting microbial respiration. Labile amendments boosted cumulative CO 2 emissions four- to fivefold compared to recalcitrant or unamended soils, reaching up to 18 g C–CO 2 m - ² under intermediate moisture with P addition. In contrast, several treatments with recalcitrant or no added carbon acted as net N 2 O sinks at high moisture levels, with cumulative fluxes ranging from −400 to −900 mg N 2 O–N m - ². Methane emissions remained consistently positive and showed no significant response to carbon type or P addition, indicating that methanogenic activity was not strongly promoted under the experimental conditions. These findings demonstrate that GHG emissions from BBFs are primarily controlled by carbon availability and soil moisture. Incorporating carbon-quality considerations into nutrient recovery strategies is therefore essential to support climate-smart fertilisation and help close nutrient loops in circular agricultural systems.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.3389/fsoil.2026.1831361first seen 2026-06-16 05:42:10
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gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。