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
18
m
Shrub Height
4
m
Field Height
1
m
Tree Cover
70
%
Shrub Cover
5
%
Field Cover
55
%
Nonvascular Cover
0.5
%
Misc Fields:
Observation Narrative
The habitat of this plot is on the dry, shaly, but quite calcareous upper slope of a knob along the crest of Shenandoah Mountain. The vegetation is a stunted, open, savanna-like forest of chestnut oak and hickories over clones of Carex pensylvanica and other xerophytic graminoids. The lichen Lobaria pulmonaria covers the trunk of the largest chestnut oak in the plot. This type of oak-hickory forest appears to be a consistent feature of the upper dip-slope flanks of Shenandoah Mountain and other Ridge and Valley strike ridges where reddish, shaley, rocks are at the surface. Although many of the crests of these mountains were subject to livestock grazing in the past, the relationship between past land-use history and the present, savanna-like appearance of these forests is uncertain.