LOCATION NALLEN WVEstablished Series
TAXONOMIC CLASS: Coarse-loamy, siliceous, semiactive, mesic Typic Hapludults
TYPICAL PEDON: Nallen loam, on a 12 percent slope, in a forested area (Colors are for moist soil unless otherwise indicated.)
Oi--0 to 3 cm (0 to 1.0 inches); fibric material; slightly decomposed leaves, twigs, and other woody materials; strongly acid (pH 5.3); abrupt wavy boundary. (0 to 5 cm thick)
Oe--3 to 4.5 cm (1 to 1.5 inches); hemic material; decomposed leaves, twigs, and other woody materials; many very fine to medium roots; extremely acid (pH 4.3); abrupt wavy boundary. (0 to 5 cm thick)
A--4.5 to 13 cm (1.5 to 5 inches); very dark grayish brown (10YR 3/2) loam; moderate fine and medium granular blocky structure; very friable; many very fine to coarse roots; 5 percent sandstone gravels and channers; very strongly acid (pH 4.5); clear wavy boundary. (5 to 18 cm thick)
BA--13 to 23 cm (5 to 9 inches); light olive brown (2.5Y 5/4) loam; weak fine and medium subangular blocky structure; friable; common very fine to coarse roots; 5 percent sandstone gravels and channers; very strongly acid (pH 4.5); clear wavy boundary. (0 to 20 cm thick)
Bt--23 to 48 cm (9 to 19 inches); yellowish brown (10YR 5/6) loam; weak medium subangular blocky structure; friable; common very fine to coarse roots; few faint clay films on faces of peds and in pores; 5 percent sandstone gravels and channers; very strongly acid (pH 4.5); gradual wavy boundary. (15 to 64 cm thick)
BC--48 to 66 cm (19 to 26 inches); yellowish brown (10YR 5/6) loam; weak medium subangular blocky structure; friable; few very fine to medium roots; 10 percent sandstone gravels and channers; extremely acid (pH 4.4); gradual wavy boundary. (0 to 25 cm thick).
C--66 to 86 cm (26 to 34 inches); yellowish brown (10YR 5/6) gravelly sandy loam; massive with some lithologic striations; friable; few fine roots; 20 percent sandstone gravels and channers; very strongly acid (pH 4.5); abrupt wavy boundary.
R--86 cm (36 inches); hard sandstone bedrock
TYPE LOCATION: Fayette County, West Virginia; about 2.5 miles west of the town of Nallen. USGS Winona, West Virginia topographic quadrangle; latitude 38 degrees 6 minutes 49.30 seconds N and longitude 80 degrees 55 minutes 28.80 seconds W. NAD 83.
RANGE IN CHARACTERISTICS:
Depth to the top of the Argillic: 8 to 51 cm (3 to 20 inches)
Depth to the base of the Argillic: 30 to 102 cm (12 to 40 inches)
Depth to Bedrock: 51 to 102 cm (20 to 40 inches). The bedrock is strongly cemented to indurated acid sandstone.
Rock Fragment content (by volume): 0 to 15 percent in the upper solum, 5 to 50 percent in the BC and C horizons.
Soil Reaction: very strongly acid to extremely acid throughout, except where limed or affected by burning.
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon:
Color--hue of 10YR or 2.5Y, value of 2 to5, and chroma of 1 to 4.
Texture (fine-earth fraction)--silt loam, loam, fine sandy loam, or sandy loam.
BA or similar transitional horizon:
Color--hue of 7.5YR to 2.5Y, value of 3 to 6, and chroma of 3 to 6, moist, (dry value of 6 or more).
Texture (fine-earth fraction)--silt loam, loam, fine sandy loam, or sandy loam.
E (or transitional eluvial) horizon present in some pedons:
Color--hue of 10YR to 2.5Y, value of 4 to 6, and chroma of 2 to 6, moist, (dry value of 6 or more).
Texture (fine-earth fraction)--silt loam, loam, fine sandy loam, or sandy loam.
Bt horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 6, and chroma of 4 to 8.
Texture (fine-earth fraction)--loam, fine sandy loam, or sandy loam.
BC or CB horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 8, and chroma of 4 to 8.
Texture (fine-earth fraction)--loam, fine sandy loam, or sandy loam.
C horizon:
Color--hue of 7.5YR to 2.5Y, value of 4 to 8, and chroma of 4 to 8.
Texture (fine-earth fraction)--loam, fine sandy loam, sandy loam, or loamy sand.
Lithochromic features in shades of yellow and reddish brown may be present.
COMPETING SERIES:
Dennisville soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
Downer soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
Ingleside soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
Phalanx soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
Swainton soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
Woodmansie soils--formed in marine sediments, greater than 152 cm (60 inches) to bedrock
GEOGRAPHIC SETTING:
Landscape: Foothills and mountains in the Allegheny Plateau
Landform: Ridges and interfluves
Hillslope Profile Position: Summits and shoulders
Geomorphic Component: Mountaintop
Parent Material: Residuum derived from sandstone of Pennsylvanian age geology
Slope: 0 to 35 percent
Elevation: 457 to 1067 meters (1500 to 3500 feet)
Frost-free period: 140 to 180 days
Mean Annual Air Temperature: 8.9 to 13.1 degrees C. (48 to 56 degrees F)
Mean Annual Precipitation: 1143 to 1397 mm (45 to 55 inches)
GEOGRAPHICALLY ASSOCIATED SOILS:
Clifftop soils--have more clay in the control section and have mixed mineralogy
Cookport soils--are moderately well drained and have a fragipan
Dekalb soils--have more than 35 percent rock fragments in the control section
Fenwick soils--are moderately well drained
Layland soils--have formed in colluvium and are greater than 152 cm (60 inches) to bedrock
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class (Agricultural): Well drained
Internal Free Water Occurrence: Absent
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Moderate to very high
Saturated Hydraulic Conductivity: High
Permeability: Moderately rapid or rapid
Shrink-swell potential: Low
USE AND VEGETATION:
Major Uses: Woodland, pasture and hay land, and urban development
Dominant Vegetation: Oak-hickory or mixed mesophytic forests.
Where wooded--scarlet, black, white, red, or chestnut oak, red maple, pignut or mockernut hickory, yellow poplar, American holly, beech, and Virginia or white pine.
DISTRIBUTION AND EXTENT:
Distribution: West Virginia. Possibly Maryland, and Pennsylvania.
Extent: Moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Fayette County, West Virginia, 2009.
REMARKS:
Diagnostic horizons and soil characteristics recognized in this pedon are:
Ochric epipedon--the zone from 0 to 20 cm (A and BA horizons)
Argillic horizon--the zone from 23 to 48 cm (Bt horizon)
Other soil features identified with this pedon:
Series control section--the zone from 0 to 86 cm
This series is proposed to cover areas in MLRA 127 previously mapped as Lily in published surveys, or Dekalb in out-of-date surveys. The preponderance of data from a variety of pedons sampled as Lily or Clymer in MLRA 127 indicated a need for the establishment of this series.
ADDITIONAL DATA:
Characterization data from the NSSL is available for this pedon: Pedon ID: 01N1148 (S01WV019003). Other valuable reference pedons available from the NSSL (http://ssldata.nrcs.usda.gov/querypage.asp): 01N1140, 01N1150, 01N1155, 01N1156, 40A4070, 80PO351, 80PO352.
NASIS User Pedon ID: S01WV019003