Bachman, L. Joseph.;Geological Survey (U.S.);Bachman, L. Joseph.;Geological...
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Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, Middle Atlantic coast; 01/01/1998
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Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, middle Atlantic coast / by L. Joseph Bachman ... [and others].
Government Document
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1998
Available at Available Merrill-Cazier Government Documents (Lower Level) (Call number: I 19.42/4:98-4059)
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Location | Call No. | Status |
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Merrill-Cazier Government Documents (Lower Level) | I 19.42/4:98-4059 | Available |
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, Middle Atlantic coast / by L. Joseph Bachman [and three others].
Electronic Government Doc
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1998
Available at Online freely available Government Documents (USU and USU Eastern)
HYDROLOGIC LANDSCAPES ON THE DELMARVA PENINSULA PART 2: ESTIMATES OF BASE -FLOW NITROGEN LOAD TO CHESAPEAKE BAY .
Bachman, L. Joseph.;Phillips, Patrick J.
Academic Journal
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Journal of the American Water Resources Association; Aug1996, Vol. 32 Issue 4, p779-791, 13p
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BSTRACT: Base-flow samples were collected from 47 sampling sites for four seasons from...
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HYDROLOGIC LANDSCAPES ON THE DELMARVA PENINSULA PART 2: ESTIMATES OF BASE -FLOW NITROGEN LOAD TO CHESAPEAKE BAY .
Journal of the American Water Resources Association; Aug1996, Vol. 32 Issue 4, p779-791, 13p
BSTRACT: Base -flow samples were collected from 47 sampling sites for four seasons from 1990-91 on the Delmarva Peninsula in Delaware and Maryland to relate stream chemistry to a 'hydrologic landscape' and season. Two hydrologic landscapes were determined: (1) a well-drained landscape, characterized by a combination of a low percentage of forest cover, a low percentage of poorly drained soil, and elevated channel slope; and (2) poorly drained landscape, characterized by a combination of an elevated percentage of forest cover, an elevated percentage of poorly drained soil, and low channel slope. Concentrations of nitrogen were significantly related to the hydrologic landscape. Nitrogen concentrations tended to be higher in well-drained landscapes than in poorly drained ones. The highest instantaneous nitrogen yields occurred in well-drained landscapes during the winter. These yields were extrapolated over the part of the study area draining to Chesapeake Bay in order to provide a rough estimate of nitrogen load from base flow to the Bay and its estuarine tributaries. This estimate was compared to an estimate made by extrapolating from an existing long-term monitoring station. The load estimate from the stream survey data was 5 ± 10 [ABSTRACT FROM AUTHOR]