Supplementary Data | Global patterns and drivers of nitrogen isotope signal in modern marine sediments

This dataset compiles elemental and isotopic data from seafloor sediments and sediment cores across globally distributed marine sites. It includes sampling information, organic carbon [OC], total nitrogen [TN], OC/N ratios, inorganic nitrogen [IN] and organic nitrogen [ON] content, δ¹³Corg, bulk nitrogen isotope [δ¹⁵N-Bulk], ON isotope [δ¹⁵N-ON], IN isotope [δ¹⁵N-IN], centennial-scale change rates in sedimentary δ¹⁵N and nitrogen content/accumulation, and reconstructed trends over the past century. For full methodological details, consult the publications referenced below the tables. This study reconstructs global spatiotemporal variations in δ¹⁵N from modern marine sediments to advance understanding of nitrogen cycling in contemporary ocean systems.

本数据集整合了全球分布海洋采样点位的海底沉积物与沉积物岩心的元素与同位素数据。数据集涵盖采样信息、有机碳（organic carbon, OC）、总氮（total nitrogen, TN）、OC/N比值、无机氮（inorganic nitrogen, IN）与有机氮（organic nitrogen, ON）含量、δ¹³Corg、全氮同位素（bulk nitrogen isotope, δ¹⁵N-Bulk）、有机氮同位素（δ¹⁵N-ON）、无机氮同位素（δ¹⁵N-IN）、沉积δ¹⁵N与氮含量及累积量的百年尺度变化速率，以及过去百年的重建趋势。如需获取完整方法学细节，请查阅表格下方所引文献。本研究基于现代海洋沉积物重建全球δ¹⁵N的时空变异特征，以期深化对当代海洋氮循环过程的认知。