Datensätze / Field Plot and Observation Points for Dinosaur National Monument Vegetation Mapping Project


Field Plot and Observation Points for Dinosaur National Monument Vegetation Mapping Project

Published By National Park Service, Department of the Interior

Issued mehr als 9 Jahre ago

US
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Summary

Art der Freigabe
ongoing release of a series of related datasets

Datenlizenz
Not Applicable

Inhaltslizenz
Creative Commons CCZero

Bestätigung
automatisiert zertifiziert

Description

This point file displays the 727 vegetation plots and 217 observation points visited in 2002, 2003 and 2004 as part of the vegetation mapping project. Plots and observation points were located subjectively in representative vegetation throughout the park. Field crews decided where and when to use observation points or vegetation plots to sample the vegetation. Vegetation plots were placed in stands judged by field crews to represent legitimate vegetation types that could be classified to the National Vegetation Classification (NVC) system using standard multivariate analysis techniques. Observation points were placed in stands (1) if the vegetation was highly altered and therefore not classifiable, (2) to provide information about the distribution of common vegetation types adequately sampled in vegetation plots, or (3) if the stand represented a unique vegetation type that was too small to hold a 400m2 sample plot (e.g., seeps, hanging gardens). The points were originally GPSed (using recreational GPS units), coordinates noted on the field sheets and then typed into the database. Field photos are associated with each plot.