LOCATION DUCKPOND TX+KS OK
Tentative Series
SLM-TLC
03/2017
DUCKPOND SERIES
The Duckpond series consists of very deep, well drained, moderately permeable soils that formed in loamy alluvium of Holocene age. These soils are on nearly level to very gently sloping floodplains in the Southern High Plains, Breaks (MLRA 77E). The slope ranges from 0 to 3 percent. Mean annual precipitation is about 530 mm (21 in), and mean annual air temperature is about 15 degrees C (59 degrees F).
TAXONOMIC CLASS: Fine-silty, mixed, superactive, thermic Cumulic Haplustolls
TYPICAL PEDON: Duckpond loam - on a 0.5 percent linear slope in native rangeland at an elevation of 755 m (2447 ft).
(Colors are for dry soil unless otherwise stated.)
Ap--0 to 12 cm (0 to 5 in); dark grayish brown (10YR 4/2) loam, very dark grayish brown (10YR 3/2), moist; moderate coarse granular parting to moderate medium granular structure; hard, friable; many fine and common medium roots throughout; common fine and few medium tubular pores; common fine cylindrical worm casts throughout; slightly effervescent (4 percent calcium carbonate equivalent); moderately alkaline, pH 8.0; clear smooth boundary. (18 to 56 cm thick [7 to 22 in])
Bw--12 to 28 cm (5 to 11 in); brown (10YR 5/3) loam, dark brown (10YR 3/3), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable; many fine and common medium roots throughout; common fine and few medium tubular pores; common fine cylindrical worm casts throughout; strongly effervescent (6 percent calcium carbonate equivalent); moderately alkaline, pH 8.0; clear smooth boundary.
Bk1--28 to 53 cm (11 to 21 in); grayish brown (10YR 5/2) silt loam, very dark grayish brown (10YR 3/2), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable; many fine and common medium roots throughout; many fine and few medium tubular pores; common fine cylindrical worm casts; few fine threadlike carbonate masses throughout; strongly effervescent (2 percent calcium carbonate equivalent); moderately alkaline, pH 8.0; gradual smooth boundary.
Bk2--53 to 78 cm (21 to 31 in); dark grayish brown (10YR 4/2) silt loam, very dark grayish brown (10YR 3/2), moist; moderate fine prismatic parting to moderate medium subangular blocky structure; hard, friable; many fine and few medium roots throughout; many fine and few medium tubular pores; common fine cylindrical worm casts; few fine threadlike carbonate masses throughout; violently effervescent (6 percent calcium carbonate equivalent); moderately alkaline, pH 8.1; abrupt smooth boundary.
Akb--78 to 111 cm (31 to 44 in); dark grayish brown (10YR 4/2) silty clay loam, very dark gray (10YR 3/1), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable; many fine and few medium roots throughout; many fine tubular and common medium tubular pores; few fine cylindrical worm casts; few fine threadlike carbonate masses throughout; strongly effervescent (3 percent calcium carbonate equivalent); moderately alkaline, pH 8.0; gradual smooth boundary.
Bkb1--111 to 131 cm (44 to 52 in); dark grayish brown (10YR 4/2) silt loam, very dark grayish brown (10YR 3/2), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable; common fine roots and few medium roots throughout; many fine and common medium tubular pores; few fine cylindrical worm casts; few fine threadlike carbonate masses throughout; strongly effervescent (7 percent calcium carbonate equivalent); moderately alkaline, pH 8.3; gradual smooth boundary.
Bkb2--131 to 162 cm (52 to 64 in); brown (10YR 4/3) loam, dark brown (10YR 3/3), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable; common fine and few medium roots throughout; common fine and few medium tubular pores; few fine cylindrical worm casts; few fine threadlike carbonate masses throughout; violently effervescent (8 percent calcium carbonate equivalent); moderately alkaline, pH 8.3; gradual smooth boundary. (Combined thickness of the Bw and/or Bk horizons and buried Akb and Bkb counterparts: 41 to 201 cm thick; 16 to 79 in)
Btkb--162 to 195 cm (64 to 77 in); brown (10YR 4/3) silty clay loam, dark brown (10YR 3/3), moist; moderate medium prismatic parting to moderate medium subangular blocky structure; hard, friable moist; few fine and few medium roots throughout; common fine and few medium tubular pores; common distinct clay films on all faces of peds; few fine cylindrical worm casts; few fine threadlike carbonate masses throughout; violently effervescent (8 percent calcium carbonate equivalent); slightly alkaline, pH 7.8.
TYPE LOCATION: Lipscomb County, Texas; from the intersection of Texas State Highway 15 and Farm and Ranch Road 2248, 2.1 miles north and 0.95 mile east.
USGS topographic quadrangle: Darrouzett, Texas
Latitude: 36 degrees 28 minutes 41.55 seconds N
Longitude: 100 degrees 17 minutes 50.36 seconds W
Datum WGS84
Decimal Degrees
Latitude: 36.4782066
Longitude: -100.2973251
UTM Northing: 4037773
UTM Easting: 383782
UTM zone 14S
RANGE IN CHARACTERISTICS:
Solum thickness: 120 cm to greater than 200 cm (45 in to greater than 80 in)
Thickness of mollic epipedon: 53 to 203 cm (21 to 80 in)
Depth to secondary carbonates: 28 to 81 cm (11 to 32 in)
Thickness of cambic horizon: 23 to 160 cm (9 to 63 in)
Particle-size control section (weighted average):
Section range: 25 to 100 cm (10 to 39 in)
Silicate clay: 19 to 25 percent
Clay-sized carbonate: 1 to 2 percent
Coarse fragments: No gravels or other coarse fragments
A horizon:
Hue: 7.5YR or 10YR
Value: 3 to 5, 2 to 3 moist
Chroma: 1 to 3 moist or dry
Texture: very fine sandy loam, fine sandy loam, loam, silt loam, clay loam, and silty clay loam
Coarse Fragments: none
Identifiable calcium carbonate: amount-0 to 1 percent; size-fine to medium; kind-masses, nodules, and concentrations
Calcium carbonate equivalent: 0 to 7 percent
Effervescence: none to strong
Reaction (pH): neutral to moderately alkaline (6.6-8.4)
Bw horizons (where present):
Hue: 7.5YR or 10YR
Value: 3 to 5, 2 to 5 moist
Chroma: 1 to 4 moist or dry
Texture: fine sandy loam, loam, silt loam, clay loam, and silty clay loam
Coarse Fragments: none
Identifiable calcium carbonate: none
Calcium carbonate equivalent: 0 to 2 percent
Effervescence: none to very slight
Reaction (pH): neutral to slightly alkaline (6.6-7.3)
Bk horizons:
Hue: 7.5YR or 10YR
Value: 3 to 6, 3 to 5 moist
Chroma: 2 to 4 moist or dry
Texture: fine sandy loam, loam, silt loam, clay loam, and silty clay loam
Coarse Fragments: none
Identifiable calcium carbonate: amount-1 to 10 percent; size-fine to medium; kind-films, finely disseminated carbonate, masses, nodules, and concentrations
Calcium carbonate equivalent: 1 to 10 percent
Effervescence: slight to violent
Reaction (pH): slightly alkaline to moderately alkaline (7.4-8.4)
BCk and Ck horizons (when present):
Hue: 7.5YR or 10YR
Value: 4 to 5, 3 to 5 moist
Chroma: 2 to 4 moist or dry
Texture: very fine sandy loam, fine sandy loam, loam, silt loam, and clay loam possibly occurring as stratified layers
Coarse fragments: amount-0-5 percent; size-fine and medium gravels; kind-carbonate nodules, caliche fragments, quartzite
Identifiable calcium carbonate: amount-1 to 4 percent; size-fine to medium; kind-films, finely disseminated carbonate, masses, nodules, and concentrations
Calcium carbonate equivalent: 1 to 14 percent
Effervescence: slight to violent
Reaction (pH): slightly alkaline to moderately alkaline (7.4-8.4)
COMPETING SERIES: These are the
Bergstrom (TX), Biggety (NM),
Elandco (TX),
Iraan (TX) and
Port (OK) soils.
Bergstrom soils: have a solum depth that ranges from deep to very deep, and are moist in the control section for longer periods of time (MLRA 86A)
Biggety soils: are drier in the soil moisture control section for longer periods of time (MLRA 42)
Elandco soils: are moist in the control section for longer periods of time (MLRA 84A)
Iraan soils: are moist in the control section for longer periods of time, and have limestone fragments in all horizons and are associated with soils formed in limestone MLRA 81A
Port soils: are moist in the control section for longer periods of time MLRA's 80A and 78C
GEOGRAPHIC SETTING:
Parent Material: Loamy alluvium of Holocene age
Landscape: alluvial plain remnant, river valley
Landform: floodplains and drainageways
Slope: 0 to 3 percent
Soil moisture: An ustic moisture regime bordering on aridic. The soil moisture control section is dry in some or all parts for more than 180 but less than 220 days, cumulative, in normal years. July through August and December through February are the driest months. These soils are intermittently moist in September through November and March through June.
Mean annual air temperature: 14 to 16 degrees C (57 to 61 degrees F)
Mean annual precipitation: 381 to 660 mm (15 to 26 in).
Frost-free period: 180 to 210 days
Elevation: 600 to 1500 m (1968 to 4921 ft)
Thornthwaite annual P-E Index: 25 to 36
GEOGRAPHICALLY ASSOCIATED SOILS:
These are the
Gilhula(T),
Guadalupe, Persimmon(T),
Sweetwater, Touzalin(T), and Wespur(T) series on similar landscape positions.
Gilhula soils: have a mollic epipedon less than 50 cm (20 in) thick, and a coarse-loamy particle-size class
Guadalupe soils: have an ochric epipedon, and a coarse-loamy particle-size class
Persimmon soils: have an ochric epipedon, a coarse-loamy particle-size class, and seasonal endosaturation within 100 cm (40 in) of the soil surface
Sweetwater soils: have fine-loamy over sandy strongly contrasting particle-size class; and endosaturation within 100 cm (40 in) of the soil surface
Touzalin soils: have an ochric epipedon, a sandy particle-size class, and seasonal endosaturation within 100 cm (40 in) of soil surface
Wespur soils: have a mollic epipedon less than 50 cm (20 in) thick, and have a fine-loamy particle-size class
DRAINAGE AND PERMEABILITY:
Drainage: well drained
Permeability: moderate
Runoff: negligible on slopes less than 1 percent and low on 1 to 3 percent slopes
Flooding: frequency-frequent to rare; duration-extremely brief to very brief during the spring and summer months
USE AND VEGETATION: These soils are used for both cropland and livestock grazing. Principal crops are wheat, grain sorghum, alfalfa, and sorghum/sudan grass. Native vegetation is predominantly purple threeawn, little bluestem, silver bluestem, side oats grama, sand bluestem, blue grama, and broom snakeweed. Yucca is the major woody species along with small amounts of sand sagebrush.
DISTRIBUTION AND EXTENT: Southern High Plains, Breaks (MLRA-77E in LRR H) of northwestern Oklahoma, the Texas and Oklahoma Panhandles, and adjacent areas of Southwestern Kansas. This soil is moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES PROPOSED: Beaver County, OK 2010. The name of the series is from a creek that traverses a portion of MLRA 77E in Beaver County, OK.
REMARKS:
These soils were former included in the Bippus series.
Diagnostic horizons and features in this pedon:
Mollic epipedon: 0 to 162 cm (0 to 64 in)
Cumulic feature: mollic epipedon greater than 50 cm (20 in) thick and irregular decrease in organic carbon with depth.
Depth to secondary carbonates: 28 to 195 cm (11 to 77 in)
Cambic horizon: 12 to 78 cm (5 to 31 in) (Bw, Bk, Akb and Bkb horizons)
ADDITIONAL DATA: KSSL data available. S1998TX295001 (TL-Lipscomb County, Texas)
TAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014.
National Cooperative Soil Survey
U.S.A.