LOCATION PINEYNECK MDEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, active, mesic Aquic Hapludults
TYPICAL PEDON: Pineyneck silt loam, on a two percent slope, in a cultivated field. (Colors are for moist soil.)
Ap--0 to 9 inches; dark grayish brown (10YR 4/2) silt loam; weak fine subangular blocky structure parting to weak fine granular; very friable, slightly sticky and nonplastic; many very fine and fine roots throughout; common very fine tubular pores; 1 percent subrounded gravel; neutral; clear wavy boundary. (7 to 14 inches thick)
E--9 to 14 inches; yellowish brown (10YR 5/4) silt loam; weak medium prismatic structure parting to weak medium subangular blocky; friable, brittle, slightly sticky, nonplastic; common very fine and fine roots between peds; many very fine and fine, and common medium tubular pores; common fine faint yellowish brown (10YR 5/6) masses of iron accumulation; neutral; clear wavy boundary. (0 to 8 inches thick)
Bt1--14 to 20 inches; yellowish brown (10YR 5/6) silt loam; moderate medium prismatic structure parting to weak medium subangular blocky; friable, slightly sticky, slightly plastic; common very fine and fine roots throughout; many very fine and fine, and common medium tubular pores; few distinct clay films on faces of peds and in pores; common medium faint strong brown (7.5YR 5/6) masses of iron accumulation; neutral; clear wavy boundary.
Bt2--20 to 27 inches; yellowish brown (10YR 5/6) loam; moderate medium prismatic structure parting to weak medium platy; friable, slightly sticky, slightly plastic; common very fine and fine roots throughout; common very fine and fine tubular pores; common distinct clay films on faces of peds and in pores; many fine and medium distinct light brownish gray (10YR 6/2) iron depletions and common medium distinct strong brown (7.5YR 5/8) masses of iron accumulation; neutral; abrupt wavy boundary. (combined thickness of Bt horizons is 12 to 36 inches)
2BC--27 to 32 inches; strong brown (7.5YR 5/6) fine sandy loam; weak coarse prismatic structure parting to weak medium subangular blocky; firm, slightly brittle, slightly sticky, nonplastic; common very fine roots throughout; common very fine, fine, and medium tubular pores; few distinct clay films on faces of peds and in pores; common fine distinct pale brown (10YR 6/3) iron depletions, many medium faint yellowish brown (l0YR 5/6) and few fine prominent red (2.5YR 4/8) masses of iron accumulation; few fine black (10YR 2/1) slightly hard masses of iron-manganese throughout; slightly acid; abrupt smooth boundary. (0 to 10 inches thick)
2C1--32 to 36 inches; light yellowish brown (2.5Y 6/3) loamy fine sand; massive; friable; few very fine roots throughout; common medium tubular pores; many medium faint light yellowish brown (2.5Y 6/4) and common fine prominent strong brown (7.5YR 5/8) masses of iron accumulation; slightly acid; abrupt wavy boundary.
2C2--36 to 47 inches; yellowish brown (10YR 5/6) loamy fine sand; weak coarse platy structure; firm, slightly brittle; common medium tubular pores; common medium distinct light gray (2.5Y 7/2) iron depletions and many medium faint strong brown (7.5YR 5/6) masses of iron accumulation; very strongly acid; abrupt smooth boundary.
3Cg1--47 to 54 inches; gray (5Y 6/1) loam; massive; friable, slightly sticky, slightly plastic; common medium, fine and very fine tubular pores; common medium distinct light yellowish brown (2.5Y 6/3) and common fine prominent yellowish brown (10YR 5/8) masses of iron accumulation; very strongly acid; clear wavy boundary.
3Cg2--54 to 61 inches; light gray (5Y 7/1) silt loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; many medium, fine, and very fine tubular pores; few prominent clay films in root channels and pores; common medium prominent yellowish brown (10YR 5/6) and common fine prominent strong brown (7.5YR 4/6) masses of iron accumulation; extremely acid; clear smooth boundary.
4Ab--61 to 68 inches; gray (N 5/0) loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; many very fine, fine, and medium tubular pores; few prominent clay films in root channels and pores; common medium prominent light olive brown (2.5Y 5/4) masses of iron accumulation; very strongly acid; clear smooth boundary. (0 to 10 inches thick)
4C'g--68 to 72 inches; dark gray (10YR 4/1) loam; massive; friable, slightly sticky, slightly plastic; many very fine and fine and common medium tubular pores; common medium distinct light gray (10YR 7/1) iron depletions in cracks and common fine prominent yellowish brown (10YR 5/8) masses of iron accumulation throughout; very strongly acid.
TYPE LOCATION: Queen Anne's County, Maryland; on Tilghman Neck, north of Tilghman Creek, 50 feet west of Tilghman Neck Road, 1200 feet north of the point at which the road turns north. USGS Langford Creek, Maryland topographic quadrangle; lat. 39 degrees 2 minutes 14.5 seconds N.; and long. 76 degrees 9 minutes 59.2 seconds W., NAD 83.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 20 to 50 inches. Rock fragments of dominantly quartzite and chert gravel range from 0 to 10 percent throughout the profile. Silt content in the A, E, and upper Bt ranges from 35 to 60 percent. The soil ranges from extremely acid through strongly acid in unlimed areas and from slightly acid through neutral in heavily limed areas.
The Ap horizon has hue of 10YR or 2.5Y, value of 3 to 5, and chroma of 2 to 4. It is predominantly loam or silt loam, or less commonly fine sandy loam or sandy loam.
The E horizon where present, has hue of 10YR or 2.5Y, value of 5 to 7, and chroma of 2 to 6. It is loam, silt loam or sandy loam. Masses of iron accumulation are present in some horizons.
The BE horizon, where present, has colors similar to the E horizon. It is loam, or less frequently sandy loam.
The Bt horizon has hue of 7.5YR, 10YR, or 2.5Y, value of 5 to 7, and chroma 1 to 8. It is usually loam or silt loam, but in the lower part of the argillic horizon can include sandy loam and coarse sandy loam, or thin layers of sandy clay loam. Iron depletions, found in the lower Bt, have hue of 10YR or 2.5Y, value of 5 to 7, and chroma of 1 or 2. Masses of iron accumulation have hue of 7.5YR or 10YR, value of 4 to 7, and chroma of 4 to 8. It has 0 to 10 percent gravel.
The BC horizon, where present, has hue of 7.5YR, 10YR, or 2.5Y, value of 5 to 7, and chroma of 1 to 8. It is loamy sand, loam, fine sandy loam, or less frequently sandy loam or silt loam. It is occasionally stratified. Iron depletions have hue of 10YR or 2.5Y, value of 6 or 7, and chroma of 1 to 3. Masses of iron accumulation have hue of 2.5YR through 2.5Y, value of 4 to 6, and chroma of 4 to 8.
The Cg horizons, where present, have hues of 10YR through 5Y, values of 3 through 8, and chroma of 0 through 2. They are loam, silt loam, or sandy loam, but are commonly stratified and may include loamy sand, sandy loam, or clay loam.
The C horizons, where present have hues of 7.5YR through 2.5Y, values of 4 to 6, and chroma of 3 to 8. They are sand, loamy sand, loamy fine sand, or sandy loam, and are commonly stratified. Some pedons include strata of sandy clay loam, loam, or silt loam. Masses of iron accumulation and zones of iron depletion are common.
The Ab horizon, where present, has hue of 10YR through 5Y, value of 5 or 6, and chroma of 0 or 1. It is loam or silt loam.
COMPETING SERIES: These are the Burtman, Pascack and Woolwich soils. Burtman soils do not allow loam and silt loam textures in the solum. Pascack soils are moderately well and somewhat poorly drained, and formed in glacial outwash. Woolwich soils contain moderate amounts of glauconite. Closely related soils are the Hammonton and Woodstown soils. Hammonton soils have siliceous mineralogy and do not allow textures of loam and silt loam in the solum. Woodstown soils have more than 18 percent clay in the particle size control section.
GEOGRAPHIC SETTING: Pineyneck soils are on level to sloping uplands and swales in the mid-Atlantic Coastal Plain. Slopes range from 0 to 10 percent. The soils formed in loamy sediments high in silt, overlying stratified fluvial Coastal Plain sediments. Climate is humid temperate with a mean annual temperature of 55 degrees F., and mean annual precipitation of 43 inches.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Carmichael, Downer, Fallsington, Hammonton, Ingleside, Pone, Sassafras, and Unicorn soils. Downer, Ingleside, Sassafras, and Unicorn soils are well drained. Carmichael and Fallsington soils are poorly drained. Pone soils are very poorly drained. Hammonton soils do not have loam and silt loam textures in the solum.
DRAINAGE AND PERMEABILITY: Pineyneck soils are moderately well drained. Runoff is slow; permeability is moderate in the solum and rapid to slow in the substratum.
USE AND VEGETATION: Pineyneck soils are often wooded, but some pedons have been drained for the production of corn, wheat, barley, and soybeans. Areas of second growth forest contain pignut hickory (Carya glabra), white oak (Quercus alba), sweetgum (Liquidambar styraciflua), black cherry (Prunus serotina), red maple (Acer rubrum), black oak (Quercus velutina), and willow oak (Quercus phellos) in the canopy; and oblong-leaf serviceberry (Amelanchier canadensis), sweet pepperbush (Clethra alnifolia), arrowwood (Viburnum dentatum), and Hercules' club (Aralia spinosa) in the understory.
DISTRIBUTION AND EXTENT: Coastal Plain of Maryland. The series is moderately extensive.
MLRA OFFICE RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Queen Anne's County, Maryland, 1995.
REMARKS: Pineyneck soils were formerly included in the Woodstown series. It is distinguished from Woodstown by having a particle size control section that is coarse-loamy rather than fine-loamy.
Diagnostic horizons and features recognized in this pedon are:
--ochric epipedon
--argillic horizon
--masses of iron accumulation and zones or iron depletion, within the upper 24 inches of the argillic horizon
ADDITIONAL DATA: None
TABULAR SERIES DATA:
SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation MD0182 PINEYNECK 0- 10 52- 58 190-210 42- 48 5- 90SOI-5 FloodL FloodH Watertable Kind Months Bedrock Hardness MD0182 NONE 1.5-3.0 APPARENT JAN-MAY 99-99
SOI-5 Depth Texture 3-Inch No-10 Clay% -CEC- MD0182 0-14 L SIL 0- 0 80-100 7-18 2- 15 MD0182 14-27 L SIL 0- 0 80-100 7-22 2- 15 MD0182 27-32 L FSL SL 0- 0 80-100 7-18 2- 10 MD0182 32-47 LS S LFS 0- 0 80-100 3-10 2- 5 MD0182 47-72 SR SIL SL 0- 0 80-100 3-25 2- 10
SOI-5 Depth -pH- O.M. Salin Permeab Shnk-Swll MD0182 0-14 3.5- 5.5 .5-3. 0- 0 0.6- 2.0 LOW MD0182 14-27 3.5- 5.5 0.-.5 0- 0 0.6- 2.0 LOW MD0182 27-32 3.5- 5.5 0.-0. 0- 0 0.6- 2.0 LOW MD0182 32-47 3.5- 5.5 0.-0. 0- 0 0.6- 20 LOW MD0182 47-72 3.5- 5.5 0.-0. 0- 0 0.6- 20 LOW