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站位的海底沉积物与沉积岩芯的元素及同位素数据。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、体相氮同位素（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/堆积量的百年尺度变化速率，以及近百年的重建趋势。若需完整方法细节，请查阅表格下方引用的相关文献。本研究基于现代海底沉积物重建了δ¹⁵N的全球时空变化特征，以期加深对现代海洋系统氮循环的认知。