Global dataset of nitrogen pool and flux estimates

Dataset of global nitrogen pools and flux estimates from 1955 to 2025 (through May). Data are seperated by domain (terrestrial, aquatic, atmospheric) with an additional tab for data that were not included in the data synthesis (total inputs that were redundant of existing data or data outside the scope of the project). Tabs have also been added that list the full citations used and that summarize means, medians, and ranges (minimum and maximum) for key fluxes. The primary dataset was used to derive a global nitrogen budget, which shows data included in the nitrogen balance calculation and how "best estimates" were derived. Details on methodolody can be found in the supplemental information of Almaraz et al. 2026 Nature Reviews Earth & Environment. Also included is the data used to make figure 3 (from Zhang et al. 2021 Nature Food) and data used to make figure 5a. Version 1 (June 18, 2025) and version 2 (August 15, 2025) and version 3 (March 2026).本数据集涵盖1955年至2025年5月的全球氮库（nitrogen pools）与通量（flux）估算数据。数据按研究领域（陆地、水生、大气）划分，额外设有一张工作表，用于收纳未纳入数据综合流程的内容：包括与现有数据重复的总输入数据，或超出本项目研究范围的数据。此外，工作表中还包含全部已用引用文献清单，以及关键通量的均值、中位数和取值范围（最小值与最大值）汇总表。 本核心数据集用于推导全球氮预算，其中列明了纳入氮平衡计算的全部数据，以及“最优估算值”的生成方法。 关于研究方法的详细细节，请参阅Almaraz等人2026年发表于《Nature Reviews Earth & Environment》的补充材料。 本数据集还包含用于绘制图3（源自Zhang等人2021年发表于《Nature Food》的研究）及图5a的相关数据。 本数据集共发布三个版本：版本1（2025年6月18日）、版本2（2025年8月15日）与版本3（2026年3月）。