Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Mean Rate of Nitrogen Application on Agricultural Land from Census of Agriculture, 1997

This tabular data set represents the mean rate of nitrogen from fertilizer and manure applied on agricultural land in 1997 compiled for two spatial components of the...本表格数据集呈现了1997年农业用地中施用化肥与畜禽粪便所带来的氮素平均输入速率，其针对……的两个空间组分进行编制。