LOCATION DAKLOS UT+AZ
Established Series
Rev: KDS/RLB
09/2018
DAKLOS SERIES
The Daklos series consists of very shallow to shallow, well drained soils that formed in residuum and slope alluvium derived from Cretaceous-aged sandstone. Daklos soils are on structural benches, hillslopes on structural benches, and ledges on escarpments. Slopes range from 2 to 70 percent. Mean annual precipitation is about 10 inches and the mean annual air temperature is about 51 degrees F.
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, calcareous, mesic Lithic Ustic Torriorthents
TYPICAL PEDON: Daklos loam, on a south facing, 3 percent slope at an elevation of 5,800 feet. (Colors are for dry soil unless otherwise noted.) The surface is covered by 5 percent gravel.
A--0 to 3 inches; very pale brown (10YR 7/3) loam, brown (10YR 5/3) moist; weak fine granular structure; soft, very friable, slightly sticky and slightly plastic; common very fine and fine roots; 5 percent gravel; slightly effervescent; carbonates are disseminated throughout; slightly alkaline (pH 7.6); abrupt smooth boundary. (1 to 5 inches thick)
C--3 to 10 inches; very pale brown (10YR 7/3) very gravelly loam, brown (10YR 5/3) moist; massive; slightly hard, friable, slightly sticky and slightly plastic; common very fine and fine and few medium roots; 55 percent gravel; slightly effervescent; carbonates are disseminated throughout; slightly alkaline (pH 7.6); abrupt smooth boundary. (5 to 15 inches thick)
R--10 inches; Dakota Formation Sandstone bedrock.
TYPE LOCATION: Garfield County, Utah; about 1.5 miles north to northeast of Slickwater; located about 2,000 feet north and 1,400 feet east of the southwest corner of sec. 15, T. 37 S., R. 4 E.; Seep Flat USGS quad; lat. 37 degrees 35 minutes 26.62 seconds N. and long. 111 degrees 27 minutes 29.74 seconds W NAD 83.
RANGE IN CHARACTERISTICS:
Soil moisture - Intermittently moist in some part of the soil moisture control section during July through September and December through February. Driest during May and June. Ustic aridic moisture regime.
Mean annual soil temperature: 52 to 57 degrees F.
Depth to bedrock: 4 to 20 inches
Particle-size control section (weighted average):
Clay content: 12 to 27 percent
Rock fragments: 35 to 60 percent dominantly gravel, channers, and cobbles
A horizon
Hue: 10YR
Value: 5 to 7 dry, 4 or 5 moist
Chroma: 3 to 6, dry or moist
Reaction: slightly to moderately alkaline
C horizon
Hue: 10YR, 2.5Y
Value: 5 to 7 dry, 4 or 5 moist
Chroma: 3 or 4 dry or moist
Texture: loam, sandy loam, fine sandy loam, very fine sandy loam, sandy clay loam
Clay content: 12 to 27 percent
Rock fragments: 35 to 60 percent dominantly gravel, channers, cobbles and stones
Calcium carbonate equivalent: 5 to 30 percent
Reaction: slightly to strongly alkaline
COMPETING SERIES: These are the
Andanada (NM),
Cheeta (T) (UT),
Ednagrey (NV),
Hillburn (UT),
Meriwhitica (AZ),
Nonip (UT),
Redsun (WY),
Reef (UT),
Skos (UT),
Sunup (WY),
Teesto (AZ), and
Windcomb (UT) series. Andanada soils have secondary calcium carbonate throughout the soil profile, derived from basalt bedrock, and are less than 10 inches to hard basalt bedrock. Cheeta soils have mean annual soil temperature lower than 52 degrees F. and are in MLRA 34B-Warm Central Desrtic Basins and Plateaus. Ednagrey soils are moist in the soil moisture control section for less than 20 days cumulative between July and September. Hillburn soils are inactive. Meriwhitica soils have a mean annual soil temperature more than 54 degrees F. Nonip soils have loamy silt loam, clay loam textures and are derived from shell and siltstone. Reef soils have hues at 5YR and 7.5YR. Redsun soils are derived from limestone and 7.5YR to 2.5YR hues. Skos soils have 2.5YR or 5YR hues and contain 20 to 35 percent clay in the particle size control section. Teesto soils are formed from basalt and other pyroclastic materials and contain less than 5 percent CaC03 in the particle size control section. Redsun, Sunup, and Windcomb soils are moist in the soil moisture control section during
May and June.
GEOGRAPHIC SETTING: Daklos soils are on structural benches, hillslopes on structural benches, and ledges on escarpments. Slopes range from 2 to 70 percent. The soils formed in local residuum and slope alluvium derived from Cretaceous-aged sandstone. The mean annual air temperature is 48 to 52 degrees F. and the mean annual precipitation is 9 to 13 inches. The frost-free period is 120 to 175 days. Elevation is 4,800 to 6,900 feet.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Catahoula and
Arches series. The Catahoula soils are very deep and are on steep colluvial slopes. The Arches soils have fine sand and loamy fine sand textures.
DRAINAGE AND PERMEABILITY: Well drained, medium runoff, moderate permeability.
USE AND VEGETATION: Daklos soils are used for rangeland, wildlife habitat and recreation. Potential native vegetation includes Utah juniper, green mormontea, broom snakeweed, Fremonts barberry, yellow rabbitbrush, two-needle pinyon, Indian ricegrass, galleta, and blue grama.
DISTRIBUTION AND EXTENT: South central, Utah; MLRA 35; This soil is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Garfield County, Utah, Grand Staircase-Escalante National Monument soil survey area 2004. The name is coined.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from 0 to 3 inches (A horizon)
Particle size control section - 0 to 10 inches (A and C horizons)
Lithic contact - the boundary at 10 inches (R horizon)
Classified according to Soil Taxonomy, Second Edition, 1999; Keys to Soil Taxonomy, Twelfth Edition, 2014
The assignment of the cation-exchange activity class is inferred from lab data from similar soils in the surrounding area.
Updated competing series section June 26, 2008, CEM
Updated for the correlation of the Emery Area, Utah. Air and soil temperatures were adjusted to account for the differences between MLRA 34B and 35. Soils correlated as Daklos in Utah have cooler air and soil temperatures and should be evaluated. April 26, 2011 CEM.
Update and revisions for the correlation of Capitol Reef National Park, January 2013, WWJ
Update and revisions for the correlation of Kane County, UT, July 2017, CEM
National Cooperative Soil Survey
U.S.A.