085-GWMP-0033
» Citation URL: http://vegbank.org/cite/urn:lsid:cvs.bio.unc.edu:observation:16128-{909AB03C-CD18-4489-BD00-16BE9DD5FE3C} » Citing info
Plot ID Fields:
Author Plot Code	085-GWMP-0033
Author Observation Code	085-GWMP-0033
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	10 x 10 m
Area	100 m²
Permanence	not permanent
Environment Fields:
Elevation	0 m
Slope Aspect	(n/a, flat) º
Slope Gradient	0 º
Topographic Position	plain/level/bottom
Landform	tidal flat
Hydrologic Regime	tidal - regularly flooded
Soil Moisture Regime	hygric
Soil Drainage	poorly drained
Water Salinity	freshwater
Methods Fields:
Observation Start Date	20-Sep-2006
Observation End Date	20-Sep-2006
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	5 m
Field Cover	85 %
Misc Fields:
Observation Narrative	Wide area of Nuphar advena in Potomac river at southern end of Dyke Marsh. Plot is adjacent to small island off of Hog Island. Area sampled at low tide so no standing water. Likely 100% submerged at high tide.

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 Nuphar advena Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   Nuphar advena **   -all-   62.5 % 8       -none- 2 Hydrilla verticillata Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   Hydrilla verticillata **   -all-   37.5 % 7       -none- 3 Ceratophyllum demersum Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   Ceratophyllum demersum **   -all-   7.5 % 5       -none-
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Stratum Definitions:
Sorry, no Stratum Definitions found.
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