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Main Title Vegetative Delineation of Coastal Salt Marsh Boundaries: Evaluation of Methodology.
Author Eilers, H. Peter ; Taylor, Alan ; Sanville, William ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1982
Report Number EPA-600/3-82-037;
Stock Number PB83-107441
Additional Subjects Vegetation ; Boundaries ; Marshes ; Coasts ; Classifications ; Plants(Botany) ; Indicator species ; Conservation ; Cluster sampling ; Statistical analysis ; California ; Oregon ; Washington(State) ; Salt Marshes
Library Call Number Additional Info Location Last
NTIS  PB83-107441 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 59p
Abstract Legislation mandating the protection of wetlands and current pressures to convert them to other uses emphasize the need to accurately determine a wetland-upland boundary. The authors investigated six methods designed to establish such a boundary based on vegetation. Each method was applied to a common data set obtained from 295 quadrats along 22 transects between marsh and upland in 13 Oregon and Washington intertidal saline wetlands. The multiple occurrence, joint occurrence, and five percent methods required plant species to be classified as salt marsh, upland, and non-indicator; cluster and similarity methods required no initial classification. Close agreement between wetland-upland boundaries determined by the six methods suggests that preclassification of plants and collection of plant cover data may not be necessary to determine a defensible boundary. Examples of each method and lists of indicator plant species for coastal California, Oregon, and Washington are provided.
NTIS Title Notes Final rept..
PUB Date Free Form Sep 82
Category Codes 13B; 8A; 48B; 47D
NTIS Prices PC A04/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 830722356
Origin NTIS
Type CAT