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
27
m
Shrub Height
5
m
Field Height
2
m
Tree Cover
85
%
Shrub Cover
60
%
Field Cover
70
%
Nonvascular Cover
0.5
%
Misc Fields:
Observation Narrative
Plot situated on very narrow, forested bedrock terrace above the Potomac River in Mather Gorge. Vegetation is an open, species-rich oak-hickory-ash forest with a relatively dense, graminoid-dominated herb layer. The habitat is inundated by catastrophic floods with an average return interval of 30 to 85 years.