The Fate and Transport of Agriculturally Derived Nitrogen in the Mid-western United States
Our Collaborators: Richard L. Smith, Ronald C. Antweiler, John K. Böhlke, Judson W. Harvey
Sampling boat on the Iriquois River
Increased nitrogen loading from the Mississippi River is believed to contribute to the increasing temporal and spatial extent of hypoxia in the Gulf of Mexico.
We are investigating how physical, chemical and biological parameters affect nitrogen transformations and nitrogen loading in agriculturally impacted tributaries in the Mississippi basin.
Results
Papers (pdf)
Denitrification in Nitrate-Rich Streams: Application of N2:Ar and 15N-Tracer Methods in Intact Cores
Methods for Measuring Denitrification: Diverse Approaches to a Difficult Problem
Related Sites
USGS:
Toxics Program
EPA:
Mississippi basin
NOAA:
Hypoxia
NOAA:
Gulf of Mexico
