Intensive 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
1000
m²
Plot Quality Fields:
Plot Validation Level
(2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields:
Tree Height
28
m
Tree Cover
60
%
Shrub Cover
25
%
Field Cover
5
%
Nonvascular Cover
1
%
Misc Fields:
Observation Narrative
Stand of mixed oaks with interrupted understory of ericads and Ilex opaca. It was difficult to place the plot such to minimize compositional heterogeneity and inclusion of gaps and to capture representative portion of stand. One old gap, which was created by at least one treefall event, is present in module 7. The highest density of coarse woody debris and ericaceous shrubs exists beneath this gap, although the canopy has largely been filled in by expansion of adjacent crowns and release of subcanopy individuals of Quercus rubra.
Stake A stands near edge of ridge SE of small draw and ca. 20 m from trail. GPS positions recorded in 2D mode.
0 - 1 - litter
1 - 2 - duff and organic-rich, medium gray sand
2 - 60 - light brown, slightly clayey sand, with little fine organic matter
60 - 65 - transition to sandy clay; this layer is of variable consistency and uncertain depth, and there appears
