Context is everything: what controls nitrogen concentrations in U.S. streams

  • Understanding the controls on nutrient concentrations is important for managing aquatic
    ecosystems. Our work focuses on understanding the biologically important summer N
    concentrations of rivers and streams across the US.
  • Two national USEPA datasets are key to understanding the changes in stream water
    quality over time and how land management can affect stream total N concentration (TN)
    in the contiguous US.