Application of fertilizer phosphorus to nonfarm land in the United States Pacific Northwest for 2002

This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of fertilizer phosphorus that was applied to nonfarm land in the Pacific Northwest region of the United States (Hydro Region 17; Major River Basin 7 (MRB7)) during 2002.

本空间数据集由美国地质调查局（U.S. Geological Survey，USGS）编制，旨在表征2002年美国太平洋西北地区（水文区域17；主要流域7（MRB7））范围内非农用地所施用的化肥磷素总量。