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
37
m
Shrub Height
6
m
Field Height
5
m
Tree Cover
80
%
Shrub Cover
5
%
Field Cover
80
%
Misc Fields:
Observation Narrative
A swamp forest dominated by Fraxinus pennsylvanica and Acer rubrum. Ulmus americana and Carpinus caroliniana are prevalent in the understory. The ravine system is influenced by marl deposits, contributing to high calcium soil values.
Directions: Ravine SW of York River Cliffs, Yorktown