Valiela, I. Boston University Marine Program/ Marine Biological Laboratory, valiela@bio.bu.edu
Tomasky, G. Boston University Marine Program/ Marine Biologcial Laboratory, glt@bio.bu.edu
Geist, M. Waquoit Bay National Estuarine Research Reserve, mgeist@capecod.net
Bowen, J. Boston University Marine Program/ Marine Biologcial Laboratory, jlbowen@bio.bu.edu
Cole, M. Boston University Marine Program/ Marine Biologcial Laboratory, mlcole@bio.bu.edu
Kroeger, K. Boston University Marine Program/ Marine Biologcial Laboratory, kroeger@bio.bu.edu

 
REGIONAL NITROGEN LOADS TO COASTAL WATERSHEDS: EFFECTS OF CHANGES ON LAND USES, SOURCES, AND HABITAT MOSAICS
 
Nitrogen loads to coastal watersheds vary across time and space, with both sources and land uses mediating delivery of nitrogen to watershed surfaces and to estuaries beyond. In Waquoit Bay watershed system atmospheric deposition has been relatively constant, fertilizers are decreased, and wastewater nitrogen inputs have increased in recent decades. Currently, atmospheric N is the major source of N to the watershed, but because of differential losses, wastewater N becomes the principal input to receiving estuaries. In addition, nitrogen loads are further modified by passage through seepage face, coastal wetlands, and shallow estuaries.
 
Day: Tuesday, Feb. 2
Time: 11:30 - 11:45am
Location: Sweeney Center
 
Code: SS07TU1130S