releve Virginia Division of Natural Heritage, see http://www.dcr.virginia.gov/natural_heritage/documents/nh_plotform_instructions.pdf
Overall Taxon Cover Values are Automatically Calculated?
no
Plot Quality Fields:
Plot Validation Level
(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Shrub Height
1
m
Field Height
5
m
Shrub Cover
1
%
Field Cover
95
%
Misc Fields:
Observation Narrative
Plot is located on a shoreline bar along the Potomac River. The substrate consists of deep, sandy, alluvial deposits with some small accumulations of silt. Although very small, the vegetation is a classic representation of low, annual-dominated herbaceous depositional bar. As a result, the plot was limited to a narrow, 50 square-meter quadrat in order to avoid introducing heterogeneous elements to the sample. Much of the bluff upslope from the plot was quarried and disturbed in the early 19th century.