Landscape Based Modeling of Nonpoint Source Nitrogen Loading in the Neuse River Basin, North Carolina
The objective of this research was to arrive at a quantitative and qualitative assessment of nonpoint sources of potential excess N under different land use/land cover (LULC) categories in the Neuse River Basin on a seasonal time scale. This assessment is being supplied to EPA's Landscape Characterization Branch, National Exposure Research Laboratory, in Research Triangle Park, NC, for inclusion in a hydrologic model to predict seasonal fluxes of N from the terrestrial landscape to surface receiving waters and groundwater in the Neuse River Basin. The analysis was performed in the following five steps: (1) development of a conceptual model to predict potential excess N on land, (2) a literature review to parameterize N fluxes under LULC categories found in the Neuse River Basin, (3) acquisition of high resolution (15-m pixel) LULC data from EPA's Landscape Characterization Branch, National Exposure Research Laboratory, in Research Triangle Park, NC, (4) acquisition of a soil N inventory map for the Neuse River Basin, (5) calculations of potential excess N on a seasonal basis for the entire Neuse River Basin.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- EPA NATIONAL EXPOSURE RESEARCH LABORATORY (US)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 777657
- Report Number(s):
- ORNL/TM-2000/282; TRN: AH200118%%115
- Resource Relation:
- Other Information: PBD: 11 Jan 2001
- Country of Publication:
- United States
- Language:
- English
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