Vegetation Classification and Mapping Project Report - USGS

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USGS-NPS Vegetation Mapping Program Colonial National Historical Park Figure I11. Coastal Plain Dry Calcareous Forest at Colonial National Historical Park. July 2004. NAD 1983 / UTM easting 358415, northing 4126410. 226
USGS-NPS Vegetation Mapping Program Colonial National Historical Park COMMON NAME (PARK-SPECIFIC): PIEDMONT / LOW ELEVATION MIXED OAK / HEATH FOREST SYNONYMS USNVC English Name: White Oak - (Scarlet Oak, Black Oak, Chestnut Oak) / Black Huckleberry Forest USNVC Scientific Name: Quercus alba - Quercus (coccinea, velutina, prinus) / Gaylussacia baccata Forest USNVC Identifier: CEGL008521 LOCAL INFORMATION Environmental Description: Piedmont / Low Elevation Mixed Oak / Heath Forest is found on xeric sites over well-drained, sandy soils derived from fluvial terrace gravels. Vegetation Description: This xeric deciduous oak forest has a canopy dominated by Quercus alba (white oak) occurring with Quercus prinus (chestnut oak) and Pinus virginiana (Virginia pine). Other canopy and subcanopy associates can include Quercus falcata (southern red oak), Quercus stellata (post oak), Quercus coccinea (scarlet oak), Nyssa sylvatica (blackgum), and Acer rubrum (red maple). Oxydendrum arboreum (sourwood) and Ilex opaca var. opaca (American holly) are common in subcanopy or tall-shrub strata. Herbs such as Mitchella repens (partridgeberry), Monotropa uniflora (Indianpipe), and Chimaphila maculata (striped prince's pine) are absent to very sparse. Short ericaceous shrubs dominate the ground layer, most commonly Gaylussacia baccata (black huckleberry), but other common shrub species include Gaylussacia frondosa (blue huckleberry), Vaccinium pallidum (Blue Ridge blueberry), and Vaccinium stamineum (deerberry). Most Abundant Species: Stratum Lifeform Species Tree canopy Broad-leaved deciduous tree Quercus alba (white oak), Quercus prinus (chestnut oak) Short shrub/sapling Broad-leaved deciduous shrub Gaylussacia baccata (black huckleberry) Characteristic Species: Gaylussacia baccata (black huckleberry), Quercus alba (white oak), Quercus prinus (chestnut oak). Other Noteworthy Species: Information not available. Subnational Distribution with Crosswalk Data: State SRank Rel Conf SName Reference VA SNR* B 1 Oak / Heath Forest Fleming et al. 2006 Local Range: This association is mapped as a single polygon in the College Creek / Kingsmill area of Colonial National Historical Park. Classification Comments: This type is distinguished from Acidic Oak - Hickory Forest by the presence of a dense, almost continuous ericaceous shrub layer, the absence or lower frequency of Carya (hickory) species, and the absence or very low cover of herbaceous species. Other Comments: The vegetation in Colonial National Historical Park was classified as this association because of the dominance of Gaylussacia baccata (black huckleberry) and presence of Quercus prinus (chestnut oak). Despite the occurrence in the Coastal Plain, it is compositionally more similar to oak / heath forests of the Piedmont and low elevations of the Central Appalachians, than those classed as Coastal Plain Mixed Oak / Heath Forest (CEGL006269). Local Description Authors: K. D. Patterson. 227
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Vegetation Classification and Mapping Project Report - USGS

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