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
19
m
Shrub Height
5
m
Field Height
6
m
Tree Cover
50
%
Shrub Cover
15
%
Field Cover
12
%
Nonvascular Cover
5
%
Misc Fields:
Observation Narrative
Plot is located in Montgomery County, Maryland, on a small island just upstream from Great Falls and a short ways below the Corps of Engineers low-water dam. Patches of Justicia americana occupy the shallow channels between the river shore and the island. The plot captures a relatively mature woodland that occupies the elevated part of the island in a long, narrow strip. The diversity of microhabitats and flora is very high for this type of vegetation.