Application of manure nutrients generated by grazing cattle to grazing land within the Pacific drainages of the United States, 2012
Dates
Publication Date
2019-10-08
Start Date
2012
End Date
2012
Citation
Wise, D.R., 2019, Application of manure nutrients generated by grazing cattle to grazing land within the Pacific drainages of the United States, 2012: U.S. Geological Survey data release, https://doi.org/10.5066/P9RCPKPC.
Summary
The U.S. Geological Survey (USGS) is developing SPARROW models (SPAtially Related Regressions On Watershed Attributes) to assess the transport of contaminants (e.g., nutrients) through the Pacific drainages of the United States (the Columbia River basin; the coastal drainages of Washington, Oregon, and California; the Klamath River basin; the Central Valley of California, and the west slopes of the Sierra Nevada Mountains). SPARROW relates instream water quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and the factors influencing terrestrial and aquatic transport. Cattle manure applied to grazing land is a potential source of nutrients delivered to streams. The spatial data [...]
Summary
The U.S. Geological Survey (USGS) is developing SPARROW models (SPAtially Related Regressions On Watershed Attributes) to assess the transport of contaminants (e.g., nutrients) through the Pacific drainages of the United States (the Columbia River basin; the coastal drainages of Washington, Oregon, and California; the Klamath River basin; the Central Valley of California, and the west slopes of the Sierra Nevada Mountains). SPARROW relates instream water quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and the factors influencing terrestrial and aquatic transport. Cattle manure applied to grazing land is a potential source of nutrients delivered to streams. The spatial data set "Application of manure nutrients generated by grazing cattle to grazing land within the Pacific drainages of the United States, 2012" represents an estimate of the amount of manure nutrients generated by grazing cattle in 2012 that was applied to grazing land within the counties in which those cattle were located. This data set was created by disaggregating the manure nutrients generated by grazing cattle within each county to the potential grazing land within that county.
Click on title to download individual files attached to this item.
Related External Resources
Type: Related Primary Publication
Wise, D.R., 2019, Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in streams of the Pacific region of the United States: U.S. Geological Survey Scientific Investigations Report, https://doi.org/10.3133/sir20195112.
The purpose of this data set is to provide water-quality and land management analysts with a tool for assessing the importance of livestock manure as a source of nutrients in the Pacific drainages of the United States. There is no existing data set that includes this information and this new dataset could be useful in watershed modeling, as well as other types of water-quality and land management analyses, in the western United States.
