085-RIVB-0001
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:15378-{65BEB0DC-5432-4E33-920C-8878A104EB5F} » Citing info
Plot ID Fields:
Author Plot Code	085-RIVB-0001
Author Observation Code	085-RIVB-0001
Location Fields:	MAP: Google | Yahoo | TopoZone | MapQuest
Location Accuracy	25 m
Confidentiality Status	100 km radius (nearest degree)
Latitude	39 º
Longitude	-77 º
State or Province	Virginia
Named Places	county: Fairfax county: Fairfax region|state|province: Virginia
Layout Fields:
DSG Polygon	16 x 25 m
Area	400 m²
Permanence	not permanent
Environment Fields:
Elevation	48 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	alluvial flat/alluvial terrace/floodplain
Hydrologic Regime	non-tidal - temporarily flooded
Soil Moisture Regime	subhygric
Soil Drainage	somewhat poorly drained
Methods Fields:
Observation Start Date	01-May-2003
Observation End Date	01-May-2003
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	35 m
Shrub Height	6 m
Field Height	7 m
Tree Cover	90 %
Shrub Cover	65 %
Field Cover	45 %
Nonvascular Cover	0.5 %
Misc Fields:
Observation Narrative	Plot location: go left off river trail (heading north) at 3 large Ailanthus trees on river side of trail and view of small island. The plot captures an Acer saccharinum-dominated forest in a slightly depressed area of the floodplain. 2003-09-29: revisited this area shortly after Hurricane Isabel. The whole floodplain had deeply and powerfully flooded, leaving many downed trees and deposits of silty mud over the ground and herbaceous plants.

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 Acer negundo var. negundo Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   Acer negundo var. negundo **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 7.5 cm ± 2.5 cm     3 stem(s) 12.5 cm ± 2.5 cm     3 stem(s) 17.5 cm ± 2.5 cm     2 stem(s) 22.5 cm ± 2.5 cm     1 stem(s) 42.5 cm ± 0.5 cm     1 stem(s) 52.5 cm ± 0.5 cm     1 stem(s) 2 Acer saccharinum Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   Acer saccharinum **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 32.5 cm ± 2.5 cm     2 stem(s) 58.5 cm ± 0.5 cm     1 stem(s) 63.5 cm ± 0.5 cm     1 stem(s) 66.5 cm ± 0.5 cm     1 stem(s) 80.5 cm ± 0.5 cm     1 stem(s) 3 Platanus occidentalis Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   Platanus occidentalis **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 61.5 cm ± 0.5 cm     1 stem(s) 64.5 cm ± 0.5 cm     1 stem(s) 4 Lindera benzoin Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   Lindera benzoin **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     4 stem(s) 5 Alliaria petiolata Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   Alliaria petiolata **   -all-   17.5 % 6       -none- 6 Urtica dioica Urtica dioica **   Urtica dioica **   Urtica dioica **   Urtica dioica **   Urtica dioica **   Urtica dioica **   Urtica dioica **   Urtica dioica **   -all-   17.5 % 6       -none- 7 Asimina triloba Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   Asimina triloba **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     111 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 8 Claytonia virginica Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   Claytonia virginica **   -all-   17.5 % 6       -none- 9 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 10 Viola sororia Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   Viola sororia **   -all-   1.5 % 3       -none- 11 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   1.5 % 3       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 12 Mertensia virginica Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   Mertensia virginica **   -all-   0.505 % 2       -none- 13 Carex blanda Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   Carex blanda **   -all-   0.505 % 2       -none- 14 Persicaria virginiana Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   Persicaria virginiana **   -all-   0.505 % 2       -none- 15 Hydrophyllum virginianum Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   Hydrophyllum virginianum **   -all-   0.505 % 2       -none- 16 Laportea canadensis Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   Laportea canadensis **   -all-   0.505 % 2       -none- 17 Sanicula odorata Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   Sanicula odorata **   -all-   0.505 % 2       -none- 18 Circaea canadensis ssp. canadensis Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   Circaea canadensis ssp. canadensis **   -all-   0.505 % 2       -none- 19 Floerkea proserpinacoides Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   Floerkea proserpinacoides **   -all-   0.505 % 2       -none- 20 Toxicodendron radicans Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   Toxicodendron radicans **   -all-   0.505 % 2       -none- 21 Vitis vulpina Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   Vitis vulpina **   -all-   0.505 % 2       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 22 Festuca subverticillata Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   Festuca subverticillata **   -all-   0.505 % 2       -none- 23 Erythronium americanum ssp. americanum Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   Erythronium americanum ssp. americanum **   -all-   0.505 % 2       -none- 24 Fraxinus pennsylvanica Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   -all-   0.505 % 2       -none- 25 Geum canadense Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   Geum canadense **   -all-   0.505 % 2       -none- 26 Elymus virginicus var. virginicus Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   Elymus virginicus var. virginicus **   -all-   0.505 % 2       -none- 27 Hydrophyllum canadense Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   Hydrophyllum canadense **   -all-   0.505 % 2       -none- 28 Humulus japonicus Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   Humulus japonicus **   -all-   0.05 % 1       -none- 29 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   0.05 % 1       -none- 30 Potentilla indica Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   Potentilla indica **   -all-   0.05 % 1       -none- 31 Verbesina alternifolia Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   Verbesina alternifolia **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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