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
24
m
Shrub Height
5
m
Field Height
5
m
Tree Cover
40
%
Shrub Cover
15
%
Field Cover
2
%
Nonvascular Cover
2
%
Misc Fields:
Observation Narrative
Openly wooded, gravel/cobble bar on Potomac River channel shelf. This bar is slightly higher than both an extensive cobble flat closer to the river, and a cobbly channel on the opposite side, both of which are basically unvegetated. The habitat is flooded/inundated annually but appears to be quite droughty during the late summer draw-down period.