Record Display for the EPA National Library Catalog

RECORD NUMBER: 250 OF 1898

OLS Field Name OLS Field Data
Main Title Comparison of Created and Natural Freshwater Emergent Wetlands in Connecticut (USA).
Author Confer, S. R. ; Niering, W. A. ;
CORP Author Connecticut Coll., New London. Dept. of Botany.;Corvallis Environmental Research Lab., OR.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-93/240;
Stock Number PB93-212470
Additional Subjects Vegetation ; Swamps ; Wetlands ; Aquatic ecosystems ; Fresh water ; Sites ; Comparison ; Soil properties ; Mitigation ; Water storage ; Species diversity ; Flooding ; Monitoring ; Clean Water Act ; Connecticut ; Tables(Data) ; Reprints ; Natural wetlands ; Typha latifolia ; Cattails ; Artificial wetlands
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB93-212470 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/22/1993
Collation 17p
Abstract
Five three- to four-year old created palustrine/emergent wetland sites were compared with five nearby natural wetlands of comparable size and type. Hydrologic, soil and vegetation data were compiled over a nearly two-year period (1988-90). Created sites, which were located along major highways, exhibited more open water, greater water depth, and greater fluctuation in water depth than natural wetlands. Typical wetland soils exhibiting mottling and organic accumulation were wanting in created sites as compared with natural sites. Typha latifolia (common cattail) was the characteristic emergent vegetation at created sites, whereas a more diverse mosaic of emergent wetland species was often associated with Typha at the natural sites. Species richness was slightly higher in created vs. natural wetlands, but the mean difference was not significant. The study suggest the possibility of creating small palustrine/emergent wetlands having certain functions associated with natural wetlands, such as flood water storage, sediment accretion and wildlife habitat. It is premature to evaluate fully the outcome of these wetland creation efforts. A decade or more is needed, emphasizing the importance of long term monitoring and the need to establish demonstration areas.