Xiangcheng Zhu

1 month ago | nature.com | Xiangcheng Zhu |Feng Zhou |Peter Smith |Hanqin Tian |Jianwen Zou |Shuwei Liu | +3 more

AbstractAgricultural soils contribute ~52% of global anthropogenic nitrous oxide (N2O) emissions, predominantly from nitrogen (N) fertilizer use. Global N2O emission factors (EFs), estimated using IPCC Tier 1 methodologies, largely rely on short-term field measurements that ignore legacy effects of historic N fertilization. Here we show, through data synthesis and experiments, that EFs increase over time.