LOCATION ARISPE IA+MO
Established Series
Rev. AAC-DBO-TWN
11/2020
ARISPE SERIES
The Arispe series consists of very deep, somewhat poorly drained soils formed in loess. These soils occur on short, convex side slopes and on head slopes. Slope ranges from 2 to 14 percent. Mean annual air temperature is about 10 degrees C. Mean annual precipitation is about 810 millimeters.
TAXONOMIC CLASS: Fine, smectitic, mesic Aquertic Argiudolls
TYPICAL PEDON: Arispe silty clay loam, on a northeast-facing, convex slope of about 7 percent, in a bluegrass pasture. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 23 centimeters; black (10YR 2/1) silty clay loam, dark gray (10YR 4/1) dry; moderate fine and very fine granular structure; friable; many fine and very fine and few medium roots; common fine and few medium tubular pores; slightly acid; clear smooth boundary. (17 to 26 centimeters thick)
AB--23 to 33 centimeters; very dark gray (10YR 3/1) silty clay loam, very dark grayish brown (10YR 3/2) kneaded, dark grayish brown (10YR 4/2) dry; weak fine and very fine subangular blocky structure parting to moderate fine granular; firm; many fine and very fine and few medium roots; common fine and very fine and few medium tubular pores; dark grayish brown (10YR 4/2) coats on faces of peds; moderately acid; clear smooth boundary. (7 to 16 centimeters thick)
Btg1--33 to 41 centimeters; dark grayish brown (2.5Y 4/2) silty clay loam; moderate fine and very fine subangular blocky structure; firm; many fine and very fine and few medium roots; common fine and few medium tubular pores; many distinct very dark grayish brown (10YR 3/2) and dark grayish brown (10YR 4/2) clay films on faces of peds; many very dark gray (10YR 3/1) organic coats on faces of peds; few dark concretions (iron and manganese oxides); common fine distinct yellowish brown (10YR 5/4) redoximorphic concentrations; moderately acid; clear smooth boundary.
Btg2--41 to 56 centimeters; dark grayish brown (2.5Y 4/2) and grayish brown (2.5Y 5/2) silty clay; moderate medium prismatic structure parting to moderate fine and medium subangular blocky; firm; many fine and very fine roots; common fine and medium tubular pores; many distinct dark grayish brown (10YR 4/2) clay films on faces of peds; few very dark gray (10YR 3/1) organic coats on faces of peds and along surfaces of root channels; common fine dark concretions (iron and manganese oxides); common fine prominent yellowish brown (10YR 5/6) and strong brown (7.5YR 4/6) redoximorphic concentrations; moderately acid; gradual smooth boundary.
Btg3--56 to 82 centimeters; grayish brown (2.5Y 5/2) silty clay loam; moderate medium prismatic structure parting to moderate fine and medium subangular blocky; firm; common fine and very fine roots; common fine and medium tubular pores; many distinct dark grayish brown (2.5Y 4/2) clay films on faces of peds; few very dark gray (10YR 3/1) organic coats on surfaces along root channels; common fine dark concretions and stains (iron and manganese oxides); common fine and medium prominent yellowish brown (10YR 5/6) and few fine prominent strong brown (7.5YR 4/6) and dark reddish brown (5YR 3/4) redoximorphic concentrations; slightly acid; gradual smooth boundary.
Btg4--82 to 107 centimeters; grayish brown (2.5Y 5/2) and light brownish gray (2.5Y 6/2) silty clay loam; moderate medium prismatic structure parting to weak medium subangular blocky; firm; common fine and very fine roots; common fine and medium tubular pores; common distinct dark grayish brown (2.5Y 4/2) clay films on faces of peds; common fine and medium dark concretions and stains along with a 8 centimeter zone of dark concretions and stains (iron and manganese oxides); common fine and medium prominent strong brown (7.5YR 4/6) and yellowish red (5YR 4/6) and common fine prominent yellowish brown (10YR 5/6) redoximorphic concentrations; slightly acid; gradual smooth boundary.
Btg5--107 to 135 centimeters; light brownish gray (2.5Y 6/2) silty clay loam; weak medium prismatic structure; friable; few fine and very fine roots; common fine and medium tubular pores; common distinct grayish brown (2.5Y 5/2) clay films on faces of prisms and along surfaces of root channels; common fine dark concretions and stains (iron and manganese oxides); common fine and medium prominent yellowish brown (10YR 5/6) and yellowish brown (10YR 5/8) and common fine prominent strong brown (7.5YR 4/6) and yellowish red (5YR 4/6) redoximorphic concentrations; slightly acid; gradual smooth boundary. (Combined thickness of the Btg horizon is 50 to 120 centimeters.)
BCg--135 to 152 centimeters; light olive gray (5Y 6/2) silty clay loam; extremely coarse prismatic structure dissected by few oblique fractures; friable; few fine and very fine roots; common fine and medium tubular pores; common fine dark concretions and stains (iron and manganese oxides); common fine and medium prominent yellowish brown (10YR 5/6) and common fine prominent strong brown (7.5YR 4/6) redoximorphic concentrations; slightly acid.
TYPE LOCATION: Major Land Resource Area (MLRA) 109-Iowa and Missouri Heavy Till Plain; Clarke County, Iowa subset; about 7 miles south and 5 miles west of Osceola; located about 785 feet south and 1,155 feet west of the northeast corner of section 29, T. 71 N., R. 26 W.; USGS Lacelle topographic quadrangle; lat. 40 degrees 55 minutes 28 seconds N. and long. 93 degrees 52 minutes 05 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Thickness of the mollic epipedon--24 to 38 centimeters
Depth to carbonates--greater than 150 centimeters
Clay content in the particle-size control section (weighted average)--35 to 42 percent
Sand content in the particle-size control section (weighted average)--less than 5 percent
Rock fragment content--0 percent
Ap or A horizon:
Hue--10YR
Value--2 or 3
Chroma--1 or 2
Texture--silt loam or silty clay loam
Clay content--25 to 38 percent
Sand content--less than 8 percent
Reaction--moderately acid to neutral
AB or BA horizon:
Hue--10YR or 2.5Y
Value--3 or 4
Chroma--1 or 2
Texture--silty clay loam
Clay content--28 to 40 percent
Sand content--less than 8 percent
Reaction--moderately acid to neutral
Btg horizon:
Hue--10YR or 2.5Y
Value--4 to 6
Chroma--2 or 3
Texture--silty clay loam or silty clay
Clay content--35 to 42 percent
Sand content--less than 5 percent
Reaction--moderately acid to neutral
BCg horizon:
Hue--2.5Y or 5Y
Value--4 to 6
Chroma--1 or 2
Texture--silt loam or silty clay loam
Clay content--25 to 30 percent
Sand content--less than 5 percent
Reaction--moderately acid to neutral
Some pedons have a Cg horizon
COMPETING SERIES: These are the
Arisburg,
Chase,
Good Thunder,
Greenton,
Grundy,
Lagonda,
Lamoni,
Mahaska,
Martin,
Mayberry,
Seymour,
Shorewood,
Tina, and
Wymore series.
Arisburg--are in areas that have a mean annual air temperature range of 12 to 14 degrees C and have a mean annual precipitation range of 810 to 970 millimeters
Chase--have a mollic epipedon greater than 90 centimeters thick
Good Thunder--have carbonates within a depth of 125 centimeters
Greenton--have shale fragments in the series control section
Grundy--have a clay content that averages 42 to 48 percent in the particle-size control section
Lagonda--have a sand content of more than 15 percent in the lower third of the series control section
Lamoni--have a sand content that averages 15 to 30 percent in the particle-size control section
Mahaska--have mollic epipedons 35 to 60 centimeters thick
Martin--have mollic epipedons 60 to 90 centimeters thick
Mayberry--have a sand content that averages more than 5 percent in the particle-size control section
Seymour--have an average clay content greater than 42 percent in the particle-size control section
Shorewood--have carbonates within a depth of 125 centimeters
Tina--have a sand content of more than 20 percent in the lower third of the series control section
Wymore--have a clay content that averages 42 to 55 percent in the particle-size control section
GEOGRAPHIC SETTING:
Parent material--loess
Landform---short, convex side slopes and on head slopes
Slope--2 to 14 percent
Elevation--244 to 335 meters above sea level
Mean annual air temperature--9 to 11 degrees C
Mean annual precipitation--750 to 870 millimeters
Frost-free period--165 to 180 days
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Clarinda and
Grundy soils.
Grundy--are at higher landscape positions on divides and interfluves and have a clay content that averages 42 to 48 percent in the particle-size control section
Clarinda--are at lower landscape positions on side slopes and head slopes and are frequently saturated at the soil surface during the wettest periods of normal years
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage class--somewhat poorly drained--a frequently saturated zone occurs between depths of 0.3 to 1 meter during the wettest periods of years when precipitation is within one standard deviation of the 30 year mean of annual precipitation, this saturation is considered perched
Saturated hydraulic conductivity--1.00 to 10.00 micrometers per second (moderately high)
Surface runoff potential--low or medium
USE AND VEGETATION:
Most areas are cultivated. The principal crops are corn, soybeans, small grains, and legume hay. The native vegetation is big bluestem, little bluestem, switchgrass, and other grasses of the tall grass prairie.
DISTRIBUTION AND EXTENT:
Physiographic Division--Interior Plains
Physiographic Province--Central Lowland
Physiographic section--Dissected till plains
MLRAs--Iowa and Missouri Deep Loess Hills (107) and Iowa and Missouri Heavy Till Plain (109)
LRR M; northern Missouri and southern Iowa
Extent--moderate
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Indianapolis, Indiana
SERIES ESTABLISHED: Warren County, Iowa, 1975.
REMARKS:
Particle-size control section--the zone from 33 to 83 centimeters;
series control section--the zone from the surface to a depth of 150 centimeters.
Diagnostic horizons and features recognized in this pedon include:
mollic epipedon--the zone from the surface to a depth of 33 centimeters (Ap and AB horizons);
argillic horizon--the zone from a depth of 33 to 135 centimeters (Btg1, Btg2, Btg3, Btg4 and Btg5 horizons);
udic moisture regime.
Taxonomy version--Keys to Soil Taxonomy, tenth edition, 2006.
ADDITIONAL DATA:
Laboratory data--National Soil Survey Laboratory, Lincoln, Nebraska - user pedon IDs 87IA159001 and 87IA159002 (http://ssldata.nrcs.usda.gov/).
National Cooperative Soil Survey
U.S.A.