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SHNP037
» Citation URL: http://vegbank.org/cite/VB.Ob.25497.SHNP037
» Citing info
Plot ID Fields: 
Author Plot Code ? SHNP037
Author Observation Code ? SHNP037
Original Data Location ? Virginia Natural Heritage Program, Richmond
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy ? 25 m
Confidentiality Status ? NOT IMPLEMENTED: public embargo
Latitude ? 38.6296277777778 º
Longitude ? -78.3281666666667 º
Author Location ? The Pinnacle
State or Province ? Virginia
Country ? United States
Named Places
area|country|territory: United States
continent: North America
region|state|province: Virginia
county: Page
quadrangle: Thornton Gap
Layout Fields: 
Shape ? Square
Area ? 100
Permanence ? not permanent
Environment Fields: 
Elevation ? 1085 m
Slope Aspect ? 318 º
Slope Gradient ? 38 º
Topographic Position ? High slope
Homogeneity ? homogeneous
Hydrologic Regime ? Upland
Soil Moisture Regime ? Subxeric
Soil Drainage ? excessively drained
Percent Wood ? 1 %
Percent Litter ? 29 %
Soil Taxon ? TYPIC DYSTRUDEPTS
Soil Taxon Source ? USDA county soil survey
Methods Fields: 
Observation Start Date ? 16-Jul-1999 ± exact
Date Accuracy ? exact
Project ? Shenandoah National Park
Cover Method ? Virginia Heritage Cover Method
Stratum Method ? VA-Heritage Strata
Stem Size Limit ? 2.5 cm
Taxon Observation Area ? 100
Cover Dispersion ? Entire
Overall Taxon Cover Values are Automatically Calculated? ? no
Stem Observation Area ? 100
Stem Sample Method ? Full census
Plot Quality Fields: 
Effort Level ? Accurate
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Floristic Quality ? High
Overall Plot Vegetation Fields: 
Basal Area ? 36.6633283346891 m²/ha
Tree Cover ? 15 %
Shrub Cover ? 70 %
Field Cover ? 50 %
Nonvascular Cover ? 50 %
Dominant Stratum ? Tree
Misc Fields: 
Observation Narrative ? A dry, scrubby high elevation boulderfield located on a very steep slope convexity. Only scattered, highly gnarled specimens of Betula allegheniensis exceed 6 m. in height and the open canopy is dominated by shrub sized Sorbus americana. Formidable growin
Taxa occurring on this plot-observation
Change plant label:
Change Strata Shown:
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 Betula alleghaniensis Britt. Betula alleghaniensis Britt. Betula alleghaniensis yellow birch Betula alleghaniensis Britt. **   Betula alleghaniensis Britt. Betula alleghaniensis yellow birch Betula alleghaniensis Britt. **   tree 6m
17.5 %
6       -none-
2 Sorbus americana Marsh. Sorbus americana Marsh. Sorbus americana American mountain ash Sorbus americana Marsh. **   Sorbus americana Marsh. Sorbus americana American mountain ash Sorbus americana Marsh. **   shrub
62.5 %
8       -none-
3 Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa minniebush Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. **   Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa minniebush Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. **   shrub
17.5 %
6       -none-
4 Acer spicatum Lam. Acer spicatum Lam. Acer spicatum mountain maple Acer spicatum Lam. **   Acer spicatum Lam. Acer spicatum mountain maple Acer spicatum Lam. **   shrub
7.5 %
5       -none-
5 Prunus pensylvanica L. f. Prunus pensylvanica L. f. Prunus pensylvanica pin cherry Prunus pensylvanica L. f. **   Prunus pensylvanica L. f. Prunus pensylvanica pin cherry Prunus pensylvanica L. f. **   shrub
3.5 %
4       -none-
6 Betula alleghaniensis Britt. Betula alleghaniensis Britt. Betula alleghaniensis yellow birch Betula alleghaniensis Britt. **   Betula alleghaniensis Britt. Betula alleghaniensis yellow birch Betula alleghaniensis Britt. **   shrub
3.5 %
4       -none-
7 Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa minniebush Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. **   Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. Menziesia pilosa minniebush Menziesia pilosa (Michx. ex Lam.) Juss. ex Pers. **   woody seedlings
1.5 %
3       -none-
8 Sorbus americana Marsh. Sorbus americana Marsh. Sorbus americana American mountain ash Sorbus americana Marsh. **   Sorbus americana Marsh. Sorbus americana American mountain ash Sorbus americana Marsh. **   woody seedlings
0.55 %
2       -none-
9 Parthenocissus quinquefolia (L.) Planch. Parthenocissus quinquefolia (L.) Planch. Parthenocissus quinquefolia Virginia creeper Parthenocissus quinquefolia (L.) Planch. **   Parthenocissus quinquefolia (L.) Planch. Parthenocissus quinquefolia Virginia creeper Parthenocissus quinquefolia (L.) Planch. **   woody seedlings
0.05 %
1       -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Stratum Type ?Stratum Base ?Stratum Height ?Stratum Cover ?
shrub 0.5 m 6 m 62.5 %
tree 20m 20 m 35 m  
tree 10m 10 m 20 m  
tree 6m 6 m 10 m 17.5 %
woody seedlings 0 m 0.5 m 1.5 %
Herb 0 m   50 %
tree 35m 35 m    
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Simmons, Rod Field assistant
Fleming, Gary PI
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 28-Feb-2001
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
High-Elevation Boulderfield Forest / Woodland Absolutely correct High   no
Fleming, Gary
Details 28-Feb-2001
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Betula alleghaniensis / Sorbus americana - Acer spicatum / Polypodium appalachianum Forest Absolutely correct High   no
Fleming, Gary


Soil Observations:
Soil Horizon ?Soil Depth Top ?Soil Depth Bottom ?Soil Color ?Soil Organic ?Soil Texture ?Soil Sand ?Soil Silt ?Soil Clay ?Soil Coarse ?Soil PH ?Exchange Capacity ?Base Saturation ?Soil Description ?
A                         No mineral soil present.


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
Other disturbances   Wind/Ice damage


User Defined Values
No User Defined Data for this plot