Record Display for the EPA National Library Catalog


Main Title Neuse River Estuary Modeling and Monitoring Project Stage 1: Network Analysis for Evaluating the Consequences of Nitrogen Loading.
Author Christian, R. R. ; Thomas, C. R. ;
CORP Author North Carolina Water Resources Research Inst., Raleigh. ;East Carolina Univ., Greenville, NC. Dept. of Biology.;North Carolina Dept. of Environment and Natural Resources, Raleigh.;Environmental Protection Agency, Washington, DC.
Publisher Jun 2000
Year Published 2000
Report Number UNC-WRRI-2000-325-F;
Stock Number PB2001-101563
Additional Subjects Estuaries ; Eutrophication ; Nutrient loading ; Network analysis ; Nitrogen ; Algorithms ; Material flows ; Recycling ; Biogeochemical cycling ; Modeling ; Neuse River ; Ecological network analysis
Library Call Number Additional Info Location Last
NTIS  PB2001-101563 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 66p
The Neuse River Estuary, North Carolina, USA, has demonstrated various symptoms of eutrophication during the past 20 years. The situation has stirred public opinion and political will to initiate programs to assess the problems and reduce nutrient loading. The Neuse River Modeling and Monitoring (ModMon) program represents such a program. The authors contributed to this program through ecological network analysis, a group of algorithms to evaluate networks of material flows within a structured system. Network analysis provided understanding of the relationship between nitrogen loading and recycling, the fates of loaded nitrogen and the expected inter-seasonal variation of both model inputs and ouputs. Some results show that recycling of loading nitrogen is very high, 90% or higher of total flow; one atom of nitrogen can be taken up by phytoplankton as much as 35 times; and there is little direct correlation between loading and productivity.