Livestock sheds are local and regional hotspots of greenhouse gases (GHG) emissions, but only very few studies analyse the intensities of GHG emissions from this source. The objective of this study was to quantify annual CH₄, CO₂ and N₂O emissions from inside and outside of sheepfolds and summer cattle sheds in a typical agro-pastoral ecotone using static chamber technique. Both sheepfolds and cattle shed functioned as huge net sources of CH₄ and N₂O at annual scale. Animal presence increased CH₄, CO₂ and N₂O effluxes for up to 1100 times compared to the animal sheds without animals. N₂O emissions boosted for 160%–280% during and after rainfall and spring-thaw events. The CH₄ and CO₂ fluxes increased exponentially with faeces temperature for the outside sheepfold and summer cattle shed. The annual GHG emissions from both sheepfolds and summer cattle shed were 56 t CO₂ equivalents ha⁻¹, of which N₂O contributed to 94%. Sheepfold dominated the total GHG emissions from animal sheds and accounted for 83% of the annual GHG flux. Annual emission on a per animal basis was 15, 0.2 and 28 kg CO₂ eq year⁻¹ sheep⁻¹ and 26, 10 and 140 kg CO₂ eq year⁻¹ cattle⁻¹ for N₂O, CH₄ and CO₂, respectively. The annual N₂O emissions from animal sheds were 70–250 times larger than nearby grassland soils, which were also net sink for atmospheric CH₄. Concluding, animal sheds are very intensive local hotspots of GHG emissions, which should be considered at the local and regional scales.

中文翻译：

---

羊圈和牛棚的年温室气体排放量

畜棚是温室气体 (GHG) 排放的局部和区域热点，但只有极少数研究分析了该来源的温室气体排放强度。本研究的目的是使用静态室技术量化典型农牧交错带内羊圈和夏季牛棚内外的CH ₄、CO ₂和 N _{2 O 年排放量。}羊圈和牛棚在年均是 CH ₄和 N _{2 O 的巨大净来源。}与没有动物的动物棚相比，动物的存在增加了 CH ₄、CO ₂和 N ₂ O 流出量高达 1100 倍。氮₂在降雨和春融事件期间和之后，O 排放量增加了 160%–280%。外部羊圈和夏季牛棚的CH ₄和CO _{2通量随粪便温度呈指数增加。}羊圈和夏季牛棚的年温室气体排放量均为 56 t CO ₂当量 ha ^-1，其中 N ₂ O 占 94%。羊圈在动物棚的温室气体排放总量中占主导地位，占年温室气体通量的 83%。每只动物的年排放量为 15、0.2 和 28 kg CO ₂  eq 年^-1 绵羊^-1和 26、10 和 140 kg CO ₂  eq 年^-1牛^-1分别用于 N ₂ O、CH ₄和 CO ₂。来自动物棚屋的N ₂ O 年排放量是附近草地土壤的 70-250 倍，这也是大气 CH ₄的净汇。综上所述，畜棚是当地非常密集的温室气体排放热点，应在当地和区域尺度上加以考虑。