Mechanistic role of wildfire ash in mediating post-fire nitrogen transformation: A transient biogeochemical engine driven by fuel characteristics

In this study, wildfire ash samples were collected from combustion experiments conducted under various preset conditions. During combustion experiments, fire behavior indexes were recorded. Additionally, soil incubation experiments were performed in the laboratory to obtain soil samples. Subsequently, the properties of the wildfire ash, as well as the properties and mineral N content of the soil, were analyzed in the laboratory.

本研究中，野火灰烬样本采集自不同预设条件下开展的燃烧实验。燃烧实验过程中，研究人员同步记录了火灾行为指标。此外，本研究于实验室开展土壤培育实验以获取土壤样品。后续，研究团队在实验室对野火灰烬的各项理化性质、土壤的理化性质及其矿质氮（mineral N）含量开展了分析测试。