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
200
m²
Plot Quality Fields:
Plot Validation Level
(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Tree Height
30
m
Shrub Height
4
m
Field Height
1
m
Tree Cover
80
%
Shrub Cover
35
%
Field Cover
85
%
Nonvascular Cover
1.5
%
Misc Fields:
Observation Narrative
Directions to plot: Take main entrance road up to ticket booth area. Park in lot directly behind the Filene Center (NEED TO OBTAIN PARKING PASS From PARK PERSONNEL). Plot located in seep directly off parking lot in the back-right side of the lot (near trail head).
Forested seep on edge of small floodplain. Very small, but fairly representative of the type in Northern VA. Mean groundwater pH (5 samples) = 5.53. Mean groundwater temperature (deg. C, 5 samples) = 11.60.