085-FAIR-0013
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:13373-{709BB29D-8AFE-4D13-B0E4-7CF7F312CC94} » Citing info
Plot ID Fields:
Author Plot Code	085-FAIR-0013
Author Observation Code	085-FAIR-0013
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	87 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	rolling/dissected upland
Hydrologic Regime	non-tidal - seasonally flooded
Soil Moisture Regime	subhydric
Soil Drainage	poorly drained
Methods Fields:
Observation Start Date	18-Jun-2003
Observation End Date	18-Jun-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	30 m
Shrub Height	6 m
Field Height	6 m
Tree Cover	95 %
Shrub Cover	55 %
Field Cover	15 %
Nonvascular Cover	0.5 %
Misc Fields:
Observation Narrative	Plot located in the southern part of large upland depression swamp covering several acres in the northern Piedmont Culpeper (Triassic) Basin of Fairfax County. The site is underlain by diabase and soils have a very impermeable, plastic-clay hardpan. The sample area was about 30% ponded by shallow water on the survey date. The forest here is dominated by fairly large Quercus bicolor with some associated Quercus palustris; small-diameter Acer rubrum and Fraxinus pennsylvanica are common in the sub-canopy. Herb cover and overall species richness are quite low for this type of habitat.

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 rubrum Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   Acer rubrum **   -all-   62.5 % 8       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     7 stem(s) 7.5 cm ± 2.5 cm     8 stem(s) 12.5 cm ± 2.5 cm     3 stem(s) 17.5 cm ± 2.5 cm     1 stem(s) 27.5 cm ± 2.5 cm     1 stem(s) 2 Viburnum prunifolium Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   Viburnum prunifolium **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     2 stem(s) 3 Quercus bicolor Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   Quercus bicolor **   -all-   37.5 % 7       DBH DBH err Ht. Ht. Err # 41.5 cm ± 0.5 cm     1 stem(s) 46.5 cm ± 0.5 cm     1 stem(s) 77.5 cm ± 0.5 cm     1 stem(s) 4 Smilax rotundifolia Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   Smilax rotundifolia **   -all-   17.5 % 6       -none- 5 Fraxinus pennsylvanica Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   Fraxinus pennsylvanica **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 12.5 cm ± 2.5 cm     1 stem(s) 17.5 cm ± 2.5 cm     3 stem(s) 32.5 cm ± 2.5 cm     1 stem(s) 6 Quercus palustris Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   Quercus palustris **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 32.5 cm ± 2.5 cm     1 stem(s) 68.5 cm ± 0.5 cm     1 stem(s) 7 Quercus alba Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   Quercus alba **   -all-   17.5 % 6       DBH DBH err Ht. Ht. Err # 37.5 cm ± 2.5 cm     1 stem(s) 8 Ulmus americana Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   Ulmus americana **   -all-   7.5 % 5       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     3 stem(s) 7.5 cm ± 2.5 cm     1 stem(s) 9 Arisaema triphyllum Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   Arisaema triphyllum **   -all-   7.5 % 5       -none- 10 Carpinus caroliniana Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   Carpinus caroliniana **   -all-   3.5 % 4       DBH DBH err Ht. Ht. Err # 7.5 cm ± 2.5 cm     1 stem(s) 11 Carex festucacea Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   Carex festucacea **   -all-   1.5 % 3       -none- 12 Leersia virginica Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   Leersia virginica **   -all-   1.5 % 3       -none- 13 Viola cucullata Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   Viola cucullata **   -all-   0.505 % 2       -none- 14 Eleocharis compressa var. compressa Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   Eleocharis compressa var. compressa **   -all-   0.505 % 2       -none- 15 Ilex verticillata Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   Ilex verticillata **   -all-   0.505 % 2       -none- 16 Rosa multiflora Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   Rosa multiflora **   -all-   0.505 % 2       -none- 17 Potentilla simplex Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   Potentilla simplex **   -all-   0.505 % 2       -none- 18 Dichanthelium dichotomum Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   Dichanthelium dichotomum **   -all-   0.505 % 2       -none- 19 Impatiens capensis Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   Impatiens capensis **   -all-   0.505 % 2       -none- 20 Carex sp. Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   Carex sp. **   -all-   0.505 % 2       -none- 21 Oxalis stricta Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   Oxalis stricta **   -all-   0.505 % 2       -none- 22 Juncus tenuis Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   Juncus tenuis **   -all-   0.505 % 2       -none- 23 Lycopus virginicus Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   Lycopus virginicus **   -all-   0.505 % 2       -none- 24 Carex pellita Carex pellita **   Carex pellita **   Carex pellita **   Carex pellita **   Carex pellita **   Carex pellita **   Carex pellita **   Carex pellita **   -all-   0.505 % 2       -none- 25 Galium obtusum Galium obtusum **   Galium obtusum **   Galium obtusum **   Galium obtusum **   Galium obtusum **   Galium obtusum **   Galium obtusum **   Galium obtusum **   -all-   0.505 % 2       -none- 26 Diospyros virginiana Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   Diospyros virginiana **   -all-   0.505 % 2       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 27 Lonicera japonica Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   Lonicera japonica **   -all-   0.505 % 2       -none- 28 Danthonia spicata Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   Danthonia spicata **   -all-   0.505 % 2       -none- 29 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- 30 Bidens frondosa Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   Bidens frondosa **   -all-   0.505 % 2       -none- 31 Parthenocissus quinquefolia Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   Parthenocissus quinquefolia **   -all-   0.505 % 2       -none- 32 Rubus flagellaris Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   Rubus flagellaris **   -all-   0.505 % 2       -none- 33 Juniperus virginiana var. virginiana Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   Juniperus virginiana var. virginiana **   -all-   0.505 % 2       DBH DBH err Ht. Ht. Err # 3.75 cm ± 1.25 cm     1 stem(s) 34 Cinna arundinacea Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   Cinna arundinacea **   -all-   0.505 % 2       -none- 35 Dioscorea quaternata Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   Dioscorea quaternata **   -all-   0.505 % 2       -none- 36 Ranunculus abortivus Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   Ranunculus abortivus **   -all-   0.505 % 2       -none- 37 Agrimonia parviflora Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   Agrimonia parviflora **   -all-   0.05 % 1       -none- 38 Solidago rugosa Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   Solidago rugosa **   -all-   0.05 % 1       -none-
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Stratum Definitions:
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