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085-ROCB-0005
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15414-{FA5A9568-8F6C-44C9-8FF2-478A492AC7FA}
» Citing info
Plot ID Fields: 
Author Plot Code ? 085-ROCB-0005
Author Observation Code ? 085-ROCB-0005
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Confidentiality Status ? 100 km radius (nearest degree)
Latitude ? 38 º
Longitude ? -79 º
State or Province ? Virginia
Named Places
county: Rockbridge
region|state|province: Virginia
Layout Fields: 
DSG Polygon ? 10 x 20 m
Area ? 200
Permanence ? not permanent
Environment Fields: 
Elevation ? 286 m
Slope Aspect ? 45 º
Slope Gradient ? 55 º
Topographic Position ? lower slope
Hydrologic Regime ? terrestrial (upland)
Soil Moisture Regime ? mesic
Soil Drainage ? moderately well drained
Methods Fields: 
Observation Start Date ? 05-Jun-1991
Observation End Date ? 05-Jun-1991
Project ? Virginia Heritage
Cover Method ? Carolina Vegetation Survey
Stratum Method ? No Strata
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
Plot Quality Fields: 
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields: 
Field Height ? 1 m
Tree Cover ? 50 %
Shrub Cover ? 7 %
Field Cover ? 70 %
Misc Fields: 
Observation Narrative ? Plot lies on steep slope along Buffalo Creek and just north of cliff visible from I-81. This vegetation is a function of the limestone substrate and the steep slope maintained through a dynamic equilibrium between colluvial/mass wasting deposition and erosion of said material by the subtending river. Downstream lies a sheer 150 ft. limestone cliff and upstream lie more stable slopes which support more deciduous tree. Seepage through the slope material is also evident. The northeast aspect helps maintain cool, moist condition. Snail shells of many varieties were abundant. One Thuja occidentalis measured 76 cm. dbh. Cliff / rock outcrop adjacent to stand limited plot size to 200 sq. m.
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 Cystopteris bulbifera Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   Cystopteris bulbifera **   -all-  
62.5 %
8       -none-
2 Thuja occidentalis Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   Thuja occidentalis **   -all-  
37.5 %
7       -none-
3 Acer saccharum Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   Acer saccharum **   -all-  
7.5 %
5       -none-
4 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-  
3.5 %
4       -none-
5 Ulmus rubra Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   Ulmus rubra **   -all-  
3.5 %
4       -none-
6 Thalictrum dioicum Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   Thalictrum dioicum **   -all-  
3.5 %
4       -none-
7 Hydrangea arborescens Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   Hydrangea arborescens **   -all-  
3.5 %
4       -none-
8 Tilia americana var. heterophylla Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   Tilia americana var. heterophylla **   -all-  
3.5 %
4       -none-
9 Quercus muehlenbergii Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   Quercus muehlenbergii **   -all-  
3.5 %
4       -none-
10 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-  
3.5 %
4       -none-
11 Fraxinus americana Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   Fraxinus americana **   -all-  
1.5 %
3       -none-
12 Asarum canadense Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   Asarum canadense **   -all-  
1.5 %
3       -none-
13 Polygonatum biflorum var. biflorum Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   Polygonatum biflorum var. biflorum **   -all-  
0.505 %
2       -none-
14 Staphylea trifolia Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   Staphylea trifolia **   -all-  
0.505 %
2       -none-
15 Maianthemum racemosum ssp. racemosum Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   Maianthemum racemosum ssp. racemosum **   -all-  
0.505 %
2       -none-
16 Galium aparine Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   Galium aparine **   -all-  
0.505 %
2       -none-
17 Osmorhiza claytonii Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   Osmorhiza claytonii **   -all-  
0.505 %
2       -none-
18 Brachyelytrum erectum Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   Brachyelytrum erectum **   -all-  
0.505 %
2       -none-
19 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-  
0.505 %
2       -none-
20 Anemone acutiloba Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   Anemone acutiloba **   -all-  
0.505 %
2       -none-
21 Uvularia grandiflora Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   Uvularia grandiflora **   -all-  
0.505 %
2       -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Sorry, no Stratum Definitions found.
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Fleming, Gary Field assistant
Rawinski, Tom Author
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 28-Feb-2001
No Community Interpretations.
No Class Contributors.
Details 01-Apr-2006
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Tilia americana var. heterophylla - Aesculus flava - Acer saccharum / Cystopteris bulbifera - Asarum canadense Forest 5 High   no
No Class Contributors.


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 ?
unknown                         Dark loamy soil. Young age with little or no development.


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
unknown   Just natural disturbance. Slope is undercut by river and mass wasting processes are pronounced. Thuja trees fall over in time due to steepness and unstable soil.


User Defined Values
No User Defined Data for this plot