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OLS Field Name OLS Field Data
Main Title Impacts of Freshwater Wetlands on Water Quality: A Landscape Perspective.
Author Whigham, D. F. ; Chitterling, C. ; Palmer, B. ;
CORP Author Smithsonian Environmental Research Center, Edgewater, MD.;Corvallis Environmental Research Lab., OR.
Publisher c1988
Year Published 1988
Report Number EPA/600/J-88/500;
Stock Number PB90-186164
Additional Subjects Topography ; Water quality ; Terrain ; Fresh water ; Evaluation ; Measuring ; Reprints ; Wetlands ; Environmental impacts ; Natural resources management ; Ecosystems
Library Call Number Additional Info Location Last
NTIS  PB90-186164 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/15/1990
Collation 12p
Abstract The paper suggests that a landscape approach might be useful in evaluating the effects of cumulative impacts on freshwater wetlands. The reason for using the approach is that most watersheds contain more than one wetland, and that their effects on water quality depend on the type of wetland and its position in the landscape. Riparian areas that border uplands appear to be important sites for nitrogen processing and retention of large sediment particles. Fine particles that are associated with high concentrations of phosphorus are retained in downstream wetlands where flow rates are slowed and where the surface water passes through plant litter. Riverine systems also may play an important role in processing nutrients primarily during flooding events. Lacustrine wetlands appear to have the least impact on water quality, due to a small ratio of vegetated surface to open water. Examples are given of changes that occurred when the hydrology of a Maryland floodplain was altered. (Copyright (c) 1988 Springer-Verlag.)
Supplementary Notes Pub. in Environmental Management, v12 n5 p663-671 Sep 88. Sponsored by Corvallis Environmental Research Lab., OR.
NTIS Title Notes Journal article.
Title Annotations Reprint: Impacts of Freshwater Wetlands on Water Quality: A Landscape Perspective.
Category Codes 48G; 48B; 57H
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 011722399
Origin NTIS
Type CAT