LOCATION MAYWOOD CAEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, nonacid, thermic Typic Xerofluvents
TYPICAL PEDON: Maywood silt loam, grassland. (Colors for dry soils unless otherwise stated)
A--0 to 3 inches; light olive brown (2.5Y 5/3) silt loam, dark grayish brown (10YR 4/2) moist; massive; hard, friable, slightly sticky, slightly plastic; many very fine roots; many very fine and fine tubular pores; slightly acid (pH 6.5); abrupt wavy boundary. (2 to 6 inches thick)
C1--3 to 14; pale brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive; hard, friable, slightly sticky, slightly plastic; common very fine roots; many very fine tubular and interstitial pores; slightly acid (pH 6.3); clear wavy boundary. (8 to 16 inches thick).
C2--14 to 34 inches; pale brown (10YR 6/3) fine sandy loam, brown (10YR 4/3) moist massive slightly hard, friable; common very fine, and few fine roots; many very fine and fine interstitial and tubular pores; slightly acid (pH 6.2); abrupt smooth boundary. (16 to 24 inches thick).
C3--34 to 43 inches; brown (10YR 5/3) very gravelly coarse sandy loam, brown (10YR 4/3) moist single grain; soft, friable; few very fine and fine roots; many very fine interstitial and tubular pores; thinly stratified; slightly acid (pH 6.3); abrupt smooth boundary. (7 to 12 inches thick)
2C--43 to 62 inches; pale brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; massive; hard, friable, slightly sticky, slightly plastic; few very fine roots; common very fine interstitial and tubular pores; few fine and medium distinct reddish brown mottles; slightly acid (pH 6.3).
TYPE LOCATION: Tehama County, California, 0.8 miles south of the Southern Pacific Railroad Depot at Corning and between the railway and a county road. Along the west side of the NW 1/4 of the SW 1/4 of the SW 1/4 of section 23; T24N, R3W.
RANGE IN CHARACTERISTICS: The solum is 2 to 6 inches thick and depth to contrasting stratified substrata is 10 to 22 inches. Some of these strata are gravelly or very gravelly and depth to the very gravelly layers is about 40 inches. Soil temperature is about 62 to 65 degrees F. and mineralogy is mixed. The soils are dry in the upper 2 or 3 feet for at least 60 consecutive days during most summers. The soil moisture control section (6 to 18 inches) is dry in all parts from approx. May through October (170 to 190 days) and is moist in some or all parts the remainder of the year.
The soils are structureless, massive and reaction is slightly alkaline to slightly acid.
The A horizon is 10YR 6/2, 6/3, 6/4, or 2.5Y 6/2 dry. Moist color is 10YR 4/2, 4/3, or 2.5Y4/3. It is loamy fine sand, sandy loam, fine sandy loam or silt loam.
The C horizon is 10YR 6/4, or 2.5Y 6/4. Moist color is 10YR 4/2, 4/3, 4/4, or 2.5Y 4/4, 4/2. Textures are stratified silt loam, loam, fine sandy loam, sandy loam and loamy fine sand. There are gravelly or very gravelly layers below about 3 feet 15 to 35 percent rock fragments).
COMPETING SERIES: There are no competing series.
GEOGRAPHIC SETTING: The Maywood soils occur on nearly level low terraces or floodplains along small streams which overflow occasionally or frequently. They occur at elevations of 65 to 1,250 feet, in a dry subhumid mesothermal climate with mean annual rainfall of 19 to 35 inches, with hot dry summers and cool, moist winters. Mean annual temperature is about 62 degrees F., average January temperature about 47 degrees F., and average July temperature about 80 degrees F. Frost free season averages about 275 days.
GEOGRAPHICALLY ASSOCIATED SOILS: Arbuckle and Tehama soils on slightly higher terraces, Newville soils on very old dissected terraces and Cortina soils in lower positions.
DRAINAGE AND PERMEABILITY: Well drained with moderate permeability and negligable to low runnoff.
USE AND VEGETATION: Used for cropland and pasture. Vegetation is annual grasses and forbs with scattered oaks and cottonwoods.
DISTRIBUTION AND EXTENT: West side of Sacramento Valley and other hot interior valleys of Northern California. The soils are moderately extensive. MLRA 15 and 17.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Red Bluff Area, Tehama County, California, 1910.
REMARKS: Series concept needs narrowing in terms of MLRA usage and elevation. Used in MLRAs 14, 15 and 17.
Removed edits made in 1996 to cover use in Butte Co.
ADDITIONAL DATA: University of California, Berkley sample number 58-52-6 1 to5
OSED scanned by SSQA.