LOCATION LINKVILLE IN
Established Series
Rev. IDP-FWS-SLM
11/2021
LINKVILLE SERIES
The Linkville series consists of deep, well drained, moderately permeable soils formed in calcareous loamy till which overlies stratified sand and gravelly sand. These soils are on glacial till and outwash plains have slopes ranging from 0 to 6 percent. Mean annual temperature is about 50 degrees F, and mean annual precipitation is about 34 inches.
TAXONOMIC CLASS: Fine-loamy, mixed, active, mesic Typic Argiudolls
TYPICAL PEDON: Linkville sandy loam - on a l percent convex slope in a cultivated field. (Colors are for moist soil unless otherwise stated).
Ap--0 to 10 inches; very dark brown (10YR 2/2) sandy loam; very dark grayish brown (10YR 3/2) crushed, grayish brown (10YR 5/2) dry; moderate fine granular structure; friable; common fine roots; neutral; abrupt smooth boundary. (8 to 11 inches thick)
A--10 to 13 inches; very dark grayish brown (10YR 3/2) sandy loam; grayish brown (10YR 5/2) dry moderate fine subangular blocky structure; friable; common fine roots; common fine in ped vesicular pores; common continuous very dark brown (10YR 2/2) organic coatings on faces of peds; l percent fine gravel; thin discontinuous brown (10YR 5/3) silt coatings on faces of peds; neutral, clear smooth boundary. (0 to 7 inches thick)
BA--13 to 18 inches; brown (10YR 4/3) loam, yellowish brown (10YR 5/4) crushed; moderate fine subangular blocky structure; friable; common very fine roots; few medium in ped tubular pores; thin discontinuous pale brown (10YR 6/3) coatings on faces of peds; l percent fine gravel; moderately acid; clear wavy boundary. (0 to 10 inches thick)
Bt1--18 to 27 inches; yellowish brown (10YR 5/4) heavy loam; moderate fine and medium subangular blocky structure; firm; few very fine roots; few medium and common fine in ped tubular pores; thin patchy brown (10YR 4/3) clay films on faces of peds; 2 percent fine gravel; strongly acid; gradual wavy boundary.
Bt2--27 to 45 inches; yellowish brown (10YR 5/4) loam; moderate medium subangular blocky structure; firm; few very fine roots; few medium and common fine in ped tubular pores; medium discontinuous very dark grayish brown (10YR 3/2) clay films on faces of peds; 2 percent fine gravel; strongly acid; gradual wavy boundary.
Bt3--45 to 66 inches; yellowish brown (10YR 5/4) loam; moderate medium and coarse subangular blocky structure; friable; common fine in ped tubular pores; very dark grayish brown (10YR 3/2) clay coatings in pores and along root channels; 2 percent gravel; strongly acid; gradual irregular boundary. (The combined thickness of the B2t horizon is 28 to 54 inches.)
2Bt4--66 to 77 inches; brown (7.5YR 4/4) gravelly sandy loam; moderate medium subangular blocky structure; friable; thin patchy very dark grayish brown (10YR 3/2) clay films on sand and gravel; 25 percent gravel; slightly acid; clear irregular boundary. (6 to 14 inches thick)
3C--77 to 100 inches; stratified brown (10YR 5/3) sand and gravelly sand; single grain; loose; strong effervescence; moderately alkaline.
TYPE LOCATION: Marshall County, Indiana; 1 1/2 miles west and 1 1/4 miles north of Inwood; 560 feet west and 900 feet north of southeast corner of sec. 2, T. 33 N., R. 2 E.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 48 to 80 or more inches. Depth to carbonates is 48 or more inches. The solum commonly contains 1 to 10 percent gravel except for the B3 horizon which contains as much as 30 percent. About 70 percent of the gravel is 1/2 inch in diameter and 30 percent 1/2 to 1 inch.
The A horizon has hue of 10YR, value of 2 or 3, and chroma of 1 or 2. It commonly is sandy loam and less commonly silt loam or loam.
The Bt horizon has hue of 10YR or 7.5YR, value of 4 or 5 and chroma of 3 to 6. The Bt horizon typically is loam but some subhorizons are sandy loam, sandy clay loam, or clay loam. The upper 20 inches of the argillic horizon averages between 18 and 25 percent clay. Grade of structure ranges from moderate to weak, consistence from friable to firm, and reaction typically is strongly acid but individual horizons range to slightly acid or medium acid.
The C horizon is sand and gravelly sand or loam and sandy loam overlying sand and gravelly sand.
COMPETING SERIES: Soils in the same family are the
Atkinson,
Ayr,
Burchard,
Calmar,
Corwin,
Cresco,
Durand,
Foresman,
Friesland,
Griswold,
Hitt,
Hochheim,
Jasper,
Joslin,
La Rose,
Markesan,
Mona,
Morrill,
Norborne,
Pana,
Parr,
Plattville,
Ringwood,
Rockton,
Rotamer,
Schoolcraft,
Shelby,
Sibleyville,
Symerton,
Tippecanoe,
Velma,
Wea, and
Winnebago series. Atkinson, Ayr, Burchard, Cresco, Friesland, Joslin, Mona, Ringwood, Shelby, Symerton, and Velma soils contain more clay in the lower part of their solum, in addition, Burchard, Griswold, and Ringwood soils have thinner solum. Calmar, Corwin, Hochheim, La Rose, Markesan, Parr, Rockton, Rotamer and Sibleyville soils have solum thickness of less than 40 inches. Durand, Hitt, Morrill, Pana and Winnebago soils have redder hue in much of their B horizons. Foresman and Jasper soils lack gravel in the lower part of their solum. Norbone soils have mollic epipedons more than 24 inches thick. Plattville soils have bedrock at less than 40 inches. Schoolcraft soils have thinner solum and sand higher in the profile. Tippecanoe soils have a silty layer at the surface. Wea soils are less acid in the lower part of the
solum and have a lower sand content in the upper part of the solum.
GEOGRAPHIC SETTING: Linkville soils typically are on glacial till and outwash plains. Slopes range from 0 to 6 percent. Linkville soils formed in material weathered from 4 to 8 feet of loamy till of late Wisconsinan age which overlies stratified sand and gravel. Mean annual temperature is about 45 to 57 degrees F, and mean annual precipitation is 30 to 40 inches in the areas of the soils distribution.
GEOGRAPHICALLY ASSOCIATED SOILS: The well drained
Troxel soils in depressions is the most common associate. It has a mollic epipedon more than 24 inches thick. The well drained
Parr,
Riddles, and
Elston soils are also associated with Linkville. The Parr soils have a thinner solum and are nearly level to sloping. Riddles soils have light-colored surfaces and are gently sloping to steep. Elston soils have more sand in the solum and are nearly level to gently sloping.
DRAINAGE AND PERMEABILITY: Well drained. Slow to medium runoff. Moderate permeability.
USE AND VEGETATION: Soils are cultivated; corn, soybeans, small grain and legume hay are the principal crops.
DISTRIBUTION AND EXTENT: Indiana. Small extent.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: AMHERST, MASSACHUSETTS
SERIES ESTABLISHED: Marshall County, Indiana, l978.
REMARKS: Linkville soils formerly were included with Ayr and Parr soils.
National Cooperative Soil Survey
U.S.A.