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
Stem Observation Area
400
m²
Plot Quality Fields:
Plot Validation Level
(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Tree Height
28
m
Shrub Height
5
m
Field Height
5
m
Tree Cover
35
%
Shrub Cover
50
%
Field Cover
50
%
Misc Fields:
Observation Narrative
Plot is located on a knickpoint where diamictite bedrock extends into the Potomac river and forms the channel shelf. In the plot area, this bedrock shelf is overlain by boulders and alluvial deposits. Vegetation is a scrubby, frequently scoured woodland that is inundated for large parts of the year. Species richness is extraordinarily high (130 taxa per 400 sq. m.), although 31% of the recorded species are exotics.