Climate Variation Overwhelms Efforts to Reduce Nitrogen Delivery to Coastal Waters

  title={Climate Variation Overwhelms Efforts to Reduce Nitrogen Delivery to Coastal Waters},
  author={Neil D. Bettez and Jonathan M. Duncan and Peter M. Groffman and Lawrence E. Band and Jarlath P. M. O’Neil-Dunne and Sujay S Kaushal and Kenneth T. Belt and Neely L. Law},
We calculated watershed nitrogen (N) retention (inputs–outputs)/inputs) each year from 1999–2013 for nine sub-watersheds along an urban–rural gradient near Baltimore MD to determine how land use and climate influence watershed N flux. Retention is critical to efforts to control coastal eutrophication through regulatory efforts that mandate reductions in the total maximum daily load (TMDL) of N that specific water bodies can receive. Retention decreased with urbanization as well as with… CONTINUE READING
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