Ator, S., Brakebill, J., Blomquist, J. 2011. Sources, Fate, and Transport of Nitrogen and Phosphorus in the Chesapeake Bay Watershed: An Empirical Model. Scientific Investigations Report 2011-5167. USGS, Reston, VA.

fertilizer, nutrients, water quality

Spatially Referenced Regression on Watershed Attributes (SPARROW) was used to provide empirical estimates of the sources, fate, and transport of total nitrogen and total phosphorus in the Chesapeake Bay watershed.