Across landscape and field scales, nitrogen (N) transformation rates are enhanced in hot spots (HS) and transient hot moments (HM), leading to losses of environmentally reactive N. Nitrous oxide (N₂O) emission trends follow these spatial and temporal patterns. Consequently, landscape features can accelerate N₂O emissions, and significant fractions of total annual emissions occur in these N₂O emissions HS and HM. In agroecosystems, naturally occurring and management-induced HS and HM can be exacerbated or ameliorated through mitigation management practices. Although mitigation practices have been recommended for reduction of N₂O emissions, these have not explicitly targeted HS and HM. Here we review, and synthesize, N₂O mitigation practices with an emphasis on how they can be aligned to reduce the occurrence of HS and HM of N₂O emission.

在整个景观和田野尺度上，热点（HS）和瞬态热矩（HM）中的氮（N）转化率都会提高，从而导致环境活性氮的损失。一氧化二氮（N ₂ O）的排放趋势遵循这些时空分布模式。因此，景观特征可以加速N ₂ O排放，并且这些N ₂ O排放量HS和HM占年排放总量的很大一部分。在农业生态系统中，可以通过缓解管理措施来加剧或改善自然发生和由管理引起的HS和HM。尽管已建议采取缓解措施来减少N ₂ O排放，但并未明确针对HS和HM。在这里，我们回顾并合成N ₂O缓解实践的重点是如何对齐以减少N ₂ O排放的HS和HM的发生。