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
31
m
Shrub Height
6
m
Field Height
1
m
Tree Cover
80
%
Shrub Cover
45
%
Field Cover
90
%
Nonvascular Cover
3
%
Misc Fields:
Observation Narrative
Resample of 13-year old permanent plot. Corners are now monumented with rebar stakes painted light blue.
The habitat and vegetation appear much the same in this resampled quadrat as in the original plot of 2001. Total species richness is slightly higher (85 taxa vs. 78 in 2001); total density of woody stems is slightly lower due to the loss of several shrubs; and total basal area is considerably higher due to the growth of the larger trees. Microstegium vimineum, which was not recorded in 2001, now covers >10% of the plot, which does not bode well for the continued diversity of low-cover herbaceous species.