LOCATION JERRYSLU CAEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Typic Natridurids
TYPICAL PEDON: Jerryslu silt loam - on a nearly level slope of less than 1 percent under annual grasses, forbs, and shrubs consisting mostly of red brome, redstem filaree, Atriplex spp. at 265 feet elevation. (Colors are for dry soil unless otherwise noted. When described 5/19/77 the soil profile was dry.)
A1--0 to 1 inch; light brownish gray (10YR 6/2) silt loam, dark grayish brown (10YR 4/2) moist; moderate thin platy structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; common very fine tubular and few very fine interstitial pores; slightly effervescent, carbonates disseminated; moderately alkaline (pH 8.2); abrupt smooth boundary. (1 to 5 inches thick)
A2--1 to 4 inches; light gray (10YR 7/2) loam, grayish brown (10YR 5/2) moist; weak medium subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; many very fine roots; common very fine tubular and interstitial pores; strongly effervescent, carbonates disseminated; moderately alkaline (pH 8.4); abrupt smooth boundary. (2 to 7 inches thick)
E--4 to 11 inches; very pale brown (10YR 8/2) silt loam, pale brown (10YR 6/3) moist; moderate coarse subangular blocky structure; slightly hard, friable, slightly sticky and slightly plastic; common very fine roots; common very fine tubular and interstitial pores; violently effervescent, carbonates disseminated; strongly alkaline (pH 8.6); clear smooth boundary. (0 to 8 inches thick)
Btkn--11 to 20 inches; pale brown (10YR 6/3) clay loam, brown (10YR 4/3) moist; moderate medium prismatic structure parting to moderate medium subangular blocky; hard, friable, sticky and plastic; many very fine roots; many very fine tubular and interstitial pores; few moderately thick and many thin clay films on peds and lining pores; violently effervescent, carbonates segregated in common irregular fine hard masses and filaments; strongly alkaline (pH 8.8); abrupt smooth boundary. (8 to 36 inches thick)
Bqkm1--20 to 28 inches; very pale brown (10YR 8/3) indurated lime-silica duripan, brown (10YR 5/3) moist; strong thick platy structure; silica layer 1 to 3mm thick caps the surface of the duripan; violently effervescent, carbonates disseminated and segregated in hard masses and seams; clear wavy boundary. (3 to 10 inches thick)
Bqkm2--28 to 43 inches; very pale brown (10YR 8/3) lime-silica duripan containing many thin discontinuous indurated strata, brown (10YR 5/3) moist; strong medium platy structure; violently effervescent, carbonates disseminated and segregated in hard masses and seams; abrupt smooth boundary. (0 to 15 inches thick)
C--43 to 60 inches; very pale brown (10YR 7/3) sandy loam, brown (10YR 5/3) moist; massive; slightly hard, friable, nonsticky and nonplastic; few very fine roots; common very fine tubular and many very fine interstitial pores; moderately alkaline (pH 8.2).
TYPE LOCATION: Kern County, California; about 9 miles west of Shafter; about 1400 feet south and 1900 feet east of the northwest corner of section 19, T. 28 S., R. 24 E, MDB&M; Latitude 35 degrees, 28 minutes, 44 seconds north and Longitude 119 degrees, 25 minutes, 53 seconds west; Buttonwillow Quadrangle.
RANGE IN CHARACTERISTICS: Solum thickness and depth to duripan is 20 to 40 inches. The mean annual soil temperature is 65 degrees to 67 degrees F. The soil between the depth of 4 to 12 inches is dry all the time from mid-April to mid-December and usually not moist in some or all parts for as long as 60 consecutive days during the winter.
Color of the A horizon is 10YR 6/2, 6/3, 7/2, 8/2; 2.5Y 7/2. Moist colors are 10YR 4/2, 4/3, 5/2, 5/3, 6/3; 2.5Y 5/2. It is silt loam, sandy loam, or loam. Clay content is 5 to 22 percent. Carbonates are slightly effervescent to violently effervescent, both disseminated and segregated. Reaction is moderately alkaline to very strongly alkaline.
Color of the E horizon is 10YR 6/2, 6/3, 7/2, 8/2; 2.5Y 7/2. Moist colors are 10YR 4/2, 4/3, 5/2, 5/3, 6/3; 2.5Y 5/2. It is silt loam, sandy loam, or loam. Clay content is 5 to 22 percent. Carbonates are slightly effervescent to violently effervescent, both disseminated and segregated. Reaction is moderately alkaline to very strongly alkaline. This horizon is absent in some pedons.
Color of the Btkn horizon is 10YR 4/3, 5/3, 5/4, 6/3, 6/4, 7/3, 7/4; 2.5Y 6/2 and 7/2. Moist colors are 10YR 5/3, 4/3, 4/4, 3/3, 3/4, 5/4; 2.5Y 4/2. It is loam, clay loam, or sandy clay loam. Clay content is 20 to 35 percent. Structure is moderate to strong prismatic commonly parting to blocky. Reaction is strongly to very strongly alkaline. Carbonates are strongly effervescent to violently effervescent, both disseminated and segregated. Electrical conductivity is 2 to 16 decisiemens per meter. Sodium adsorption ratio 13 to 310.
Color of the Bkqm horizon is 10YR 5/3, 5/4, 6/2, 6/3, 7/2, 7/3, 8/3; 2.5Y 6/2. Moist colors are 10YR 3/3, 4/2, 4/3, 5/3, 5/4; 2.5Y 4/2. The degree of cementation below the laminar cap varies in hardness but usually is strongly cemented. It is platy or massive.
The underlying Btkn or C horizon has colors of 10YR 6/2, 6/4, 7/2, 7/3, 8/3; 2.5Y 7/2. Moist colors are 10YR 5/2, 5/4, 6/3; 2.5Y 4/2, 5/2. Texture is loamy sand, sandy loam, fine sandy loam or loam and is commonly stratified. Clay content is 5 to 18 percent.
COMPETING SERIES: There are no other soils in this family.
GEOGRAPHIC SETTING: Jerryslu soils are on level to nearly level basin rims and fan terraces. The soils formed in alluvium from granitic rock sources. Elevations are 225 to 325 feet. The climate is arid with hot, dry summers and cool, moist winters. Mean annual precipitation is 5 to 8 inches. Mean January temperature is 45 degrees F., mean July temperature is 83 degrees F., mean annual temperature is 61 degrees to 65 degrees F. Frost-free season is 250 to 300 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Buttonwillow, Garces, Kimberlina, and Lerdo soils. All these soils lack duripans. Buttonwillow soils are clayey over loamy. Kimberlina soils lack Bt horizons and are coarse-loamy. Lerdo soils have dark gray surface and lack Bt horizons.
DRAINAGE AND PERMEABILITY: Moderately well drained; some areas are ponded; runoff is medium or high; slow permeability above the duripan, very slow in the duripan and moderately rapid below the duripan.
USE AND VEGETATION: Upon partial reclamation and deep ripping, this soil is used for alfalfa, barley, cotton, and wheat. Upon full mechanical and chemical reclamation where the natric horizon is destroyed and the duripan is more than 50 percent removed, the Jerryslu soil is destroyed and the Atesh soils (coarse-loamy, mixed (calcareous) thermic Alfic Torriarents) are formed. In the native state, this soil is used for livestock grazing. Native vegetation consists of red brome, Arabian schimus, foxtail fescue, pepperweed, filaree, Allenrolfea, and Allscale.
DISTRIBUTION AND EXTENT: The southern part of the San Joaquin Valley of California. The soils are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California.
SERIES ESTABLISHED: Kern County, Northwestern Part, California, 1982.
REMARKS: This pedon is now under irrigated agriculture and would no longer classify as a Nadurargids as the natric horizon and duripan have been modified.
ADDITIONAL DATA: Characterization samples from pedon S92CA-107-001 from Tulare County, California, samples by SSL, Lincoln, NE, 3/94.
DIAGNOSTIC HORIZONS AND FEATURES RECOGNIZED IN THE PEDON:
1.0 Ochric Epipedon -- The zone from 0 to 11 inches depth. (Ap1, Ap2 and E horizons).
2.0 Natric Horizon -- The zone from 11 to 20 inches depth (Btkn horizon).
3.0 Duripan -- The zone from 20 to 43 inches depth (Bkqm1 and Bkqm2 horizons).