The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Nitrogen Surplus Density

This dataset represents the density of nitrogen surplus as kg N / yr, excluding biological N Fixation, within individual, local NHDPlusV2 catchments and upstream,...本数据集表征了单个本地NHDPlusV2集水区（NHDPlusV2 catchments）及其上游范围内的氮盈余密度，单位为千克氮每年（kg N / yr），统计时排除了生物固氮（Biological Nitrogen Fixation）过程……