Highlights • Urinary nitrogen concentrations were lowest on animals consuming high sugar grasses.• However, soil under high sugar grasses recorded the highest N2O emissions.• Synthetic urine generated N2O emissions inconsistent with locally collected urine.• Differences in emissions amongst systems were explained by gene abundance ratios.• Results indicate the importance of soil-pasture-animal-microbiome interactions.

中文翻译：

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阐明土壤、牧场和动物之间调节温带放牧系统一氧化二氮排放的三向相互作用


亮点 • 食用高糖草的动物的尿氮浓度最低。• 然而，高糖草下的土壤记录了最高的 N2O 排放量。• 合成尿液产生的 N2O 排放量与当地收集的尿液不一致。• 系统间排放量的差异由基因解释丰度比。• 结果表明土壤-牧场-动物-微生物组相互作用的重要性。