Application of phosphorus generated by cattle at dairies and feedlots to farm 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 phosphorus generated at confined cattle operations that was applied...本空间数据集由美国地质调查局（U.S. Geological Survey, USGS）构建，旨在表征集约化养牛场产生并施加的磷元素总量……