LOCATION POUNCEY VAEstablished Series
TAXONOMIC CLASS: Fine, mixed, active, thermic Typic Albaquults
TYPICAL PEDON: Pouncey sandy loam - woodland
(Colors are for moist soil.)
Ap--0 to 6 inches, grayish brown (10YR 5/2) sandy loam; few fine distinct strong brown (7.5YR 5/6) mottles; moderate fine granular structure; very friable; common medium and fine roots; few rounded quartz gravel; very strongly acid; abrupt smooth boundary. (0 to
8 inches thick)
Eg--6 to 10 inches, light brownish gray (2.5Y 6/2) sandy loam; few fine distinct brownish yellow (10YR 6/6) mottles; moderate medium granular structure; very friable; few medium and fine roots; few
fine pores; few rounded quartz gravel; very strongly acid; abrupt smooth boundary. (4 to 12 inches thick)
Btg--10 to 25 inches, gray (5Y 5/1) clay loam; many medium prominent strong brown (7.5YR 5/8) mottles; weak very coarse
prisms parting to weak medium and coarse blocky structure; firm, sticky, plastic; few medium and fine roots; thin patchy clay films
on faces of peds; thick clay flows fill pores in the lower one
inch of the horizon and cover the underlying sandstone as a discontinuous capping up to one inch thick; very strongly acid;
clear wavy boundary. (10 to 20 inches thick)
2R--25 inches, light gray (10YR 7/2, 70 percent) and olive (5Y 5/4) and dark gray (5Y 4/1, 30 percent) extremely hard; weakly cemented sandstone.
TYPE LOCATION: Henrico County, Virginia; 1 3/4 miles north of
Short Pump, 1/8 mile east of Pouncey Tract Road (State Route 271).
RANGE IN CHARACTERISTICS: Solum thickness and depth to sandstone bedrock range from 20 to 40 inches. Granitic bedrock commonly is
at a depth of 6 feet or more. Content of rounded quartz gravel
range from 0 to 5 percent in the solum. Soil reaction is strongly acid to extremely acid, unless limed.
The Ap horizon has hue of 10YR, 2.5Y or 5Y, value of 5 or 6, and chroma of 1 or 2. It is sandy loam, fine sandy loam, loam or
loamy sand.
The E horizon has hue of 2.5Y, value of 6 or 7, and chroma of 1 or
2. It is sandy loam, fine sandy loam, loam or loamy sand.
The B horizon has hue of 10YR through 5Y, value of 4 or 5, and
chroma of 1 or 2. It is clay loam, sandy clay or clay.
COMPETING SERIES: These are the
Bladen,
Goreen,
Leaf, and
Narlon series in the same family. The Bladen, Leaf, and Narlon series
have solum thickness and depth to bedrock of more than 40 inches. The Goreen soils are underlain with stratified sandstone and clay shale. In addition, Goreen soils have hue of 10YR or redder in
the B horizon.
The
Cantey,
Colfax,
Gills,
McColl,
Roanoke, and
Worsham series are
in related families. The Cantey soils have a solum thicker than
60 inches and also have kaolinitic mineralogy. The Colfax and
Gills soils have fragipans and dominant chroma of 3 or more in the
B horizon. The McColl soils have kaolinitic mineralogy and
bedrock deeper than 40 inches. The Roanoke and Worsham soils have solum thickness and depth to bedrock of more than 40 inches.
GEOGRAPHIC SETTING: Pouncey soils are on upland flats or
depressions and along intermittent drainageways. The slopes are generally concave with gradients of 0 to 2 percent and range from about 0 to 4 percent. These soils formed in a 20 to 40 inches
thick mantle of fluvial materials over extremely hard sandstone. Average annual precipitation ranges from 38 to 46 inches and the
mean annual temperature ranges from 59 degrees to 62 degrees F.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing
Colfax soils and the
Appling,
Creedmoor,
Mayodan, and
Vance soils.
Appling, Mayodan, and Vance soils are well drained. Creedmoor
soils are moderately well drained.
DRAINAGE AND PERMEABILITY: Poorly drained with slow runoff and
very slow internal drainage. Permeability is slow.
USE AND VEGETATION: Mainly in woodland, minor acreage in pasture. Vegett tation is willow oak, maple, blackgum, sweetgum, loblolly pine, and red cedar.
DISTRIBUTION AND EXTENT: Along the eastern edge of the Piedmont Plateau near the "fall line" in Virginia. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Raleigh, North Carolina
SERIES ESTABLISHED: Henrico County, Virginia, 1973.
REMARKS: Although the upper 2 to 4 inches of the material
described as sandstone bedrock have some characteristics of a fragipan, the material as a whole is considered to be more
geologic in origin than pedogenic. Geologist described the
condition as being sandstone rock with an overlay of fluvial materials. The light (10YR 7/2) bodies will slake in water; the olive and dark gray (5Y 5/4 and 5Y 4/1) bodies will not. Most of
the latter will slake in sodium hydroxide. The most strongly cemented parts soften but do not slake in concentrated sodium hydroxide or concentrated hydrochloric acid. The close relationship of darkening and cementation infers that illuvial material, possibly illuvial clay with organic matter and possible some silica contributes to the cementation. The material designated as contributes to the cementation. The material designated as sandstone bedrock may rest directly on the underlying granitic rocks, or it may be underlain by sandy and gravelly materials with granitic bedrock at 5 to 10 feet, or by cemented sands and gravels, or by clay with sand and gravel at about 6 feet.
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation VA0049 POUNCEY 0- 4 59- 62 185-220 38- 46 250- 500SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness VA0049 RARE 0- 0 PERCHED NOV-MAY 20-40 HARD
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- VA0049 0-10 SL FSL LS 0- 0 90-100 10-20 - VA0049 0-10 L 0- 0 90-100 10-25 - VA0049 10-25 CL C SC 0- 0 90-100 35-55 - VA0049 25-35 UWB - - - -
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll VA0049 0-10 4.5- 5.5 1.-5. 0- 0 .63- 2.0 LOW VA0049 0-10 4.5- 5.5 1.-5. 0- 0 .63- 2.0 LOW VA0049 10-25 4.5- 5.5 0.-.5 0- 0 0.00-0.06 HIGH VA0049 25-35 - - - 0.00- 0.2