085-BULL-0050P
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:12855-{E7EF1D68-AB21-4CB3-B648-73797B49E4D9} » Citing info
Plot ID Fields:
Author Plot Code	085-BULL-0050P
Author Observation Code	085-BULL-0050P
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	10 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-78 º
State or Province	Virginia
Named Places	county: Prince William region|state|province: Virginia
Layout Fields:
DSG Polygon	20 x 20 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	231 m
Slope Aspect	185 º
Slope Gradient	10 º
Topographic Position	crest/interfluve
Landform	ridge/interfluve
Hydrologic Regime	terrestrial (upland)
Soil Moisture Regime	xeric
Soil Drainage	well drained
Methods Fields:
Observation Start Date	26-Jul-2001
Observation End Date	26-Jul-2001
Project	Virginia Heritage
Cover Method	Carolina Vegetation Survey
Stratum Method	No Strata
Stem Size Limit	2.5 cm
Method Narrative	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	6 m
Field Height	5 m
Tree Cover	80 %
Shrub Cover	70 %
Field Cover	50 %
Nonvascular Cover	0.5 %
Misc Fields:
Observation Narrative	Plot location: crest of east ridge of Bull Run Mountain, 1.64 km NE of Beverly Mill. Marked with a metal tree tag. See form/report for sketch. Rock types present: sparse quartzite fragments. A dry, sloping ridge crest, supporting oligotrophic pine-oak forest with a moderately dense shrub layer of Kalmia latifolia. This site appears to have a history of frequent and/or severe fires. Soils here are extremely acidic and nutrient-poor, with a thick mantle of root-rich humus containing numerous charcoal fragments. Overstory Pinus rigida and Quercus montana fail to reach 20 m in height and have a somewhat scrubby growth form. Oaks dominate the subcanopy tree layers. There is little pine recruitment and some recent mortality from southern pine beetle outbreaks on this ridge.

Taxa occurring on this plot-observation
Change plant label: --Choose a value-- Author's plant name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, USDA Code Original Interpretation, Common Name Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, USDA Code Current Interpretation, Common Name
Change Strata Shown: --choose one-- show strata (no strata on this plot) show overall cover show strata + overall
ord Author Plant Name Original Interpretation, full Scientific Name Original Interpretation, Scientific Name without authors Original Interpretation, Common Name Original Interpretation, USDA Code Current Interpretation, full Scientific Name Current Interpretation, Scientific Name without authors Current Interpretation, Common Name Current Interpretation, USDA Code Stratum Cover Original Cover Code Basal Area Biomass Inference Area Stems: Stem Diameters (graphically): 1 Quercus montana Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   Quercus montana **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     5 stem(s) 7.5 cm ± 2.5 cm     2 stem(s) 12.5 cm ± 2.5 cm     3 stem(s) 17.5 cm ± 2.5 cm     4 stem(s) 41.5 cm ± 0.5 cm     1 stem(s) 42.5 cm ± 0.5 cm     1 stem(s) 63.5 cm ± 0.5 cm     1 stem(s) 2 Pinus rigida Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   Pinus rigida **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 17.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 32.5 cm ± 2.5 cm     3 stem(s) 43.5 cm ± 0.5 cm     1 stem(s) 3 Vaccinium pallidum Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   Vaccinium pallidum **   -all-   37.5 % 7       -none- 4 Kalmia latifolia Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   Kalmia latifolia **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     16 stem(s) 5 Nyssa sylvatica Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   Nyssa sylvatica **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 7.5 cm ± 2.5 cm     5 stem(s) 12.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 6 Quercus velutina Quercus velutina **   Quercus velutina **   Quercus velutina **   Quercus velutina **   Quercus velutina **   Quercus velutina **   Quercus velutina **   Quercus velutina **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 7 Pinus virginiana Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   Pinus virginiana **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 32.5 cm ± 2.5 cm     1 stem(s) 8 Acer rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 9 Quercus marilandica var. marilandica Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   Quercus marilandica var. marilandica **   -all-   1.5 % 3       -none- 10 Fagus grandifolia Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   Fagus grandifolia **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 11 Vaccinium stamineum Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   Vaccinium stamineum **   -all-   1.5 % 3       -none- 12 Chimaphila maculata Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   Chimaphila maculata **   -all-   0.505 % 2       -none- 13 Diospyros virginiana Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   -all-   0.505 % 2       -none-
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Stratum Definitions:
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