LOCATION LOLALITA IDEstablished Series
TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, nonacid, mesic Xeric Torriorthents
TYPICAL PEDON: Lolalita coarse sandy loam, range. (Colors are for dry soil unless otherwise noted.)
A--0 to 3 inches; light brownish gray (2.5Y 6/2) coarse sandy loam, dark grayish brown (2.5Y 4/2) moist; weak medium platy structure in upper half inch and weak very fine granular structure below; soft, very friable, slightly sticky; many fine roots; many very fine pores; neutral (pH 6.9); clear smooth boundary. (0 to 5 inches thick)
C--3 to 36 inches; light yellowish brown (2.5Y 6/3) coarse sandy loam, light olive brown (2.5Y 5/4) moist; massive; slightly hard, very friable, slightly sticky; common fine roots; many very fine pores; neutral (pH 7.0); wavy boundary. (22 to 50 inches thick)
2Ck--36 to 60 inches; pale yellow (2.5Y 7/3) loamy coarse sand, light olive brown (2.5Y 5/4) moist; massive; slightly hard, very friable; few fine roots; few faint carbonate veins; slightly effervescent, mildly alkaline (pH 7.8); (6 to 30 inches thick)
TYPE LOCATION: Gem County, Idaho; about 6 miles south of Emmett; 650 feet west and 500 feet south of the center of the SE1/4 sec. 25, T.6N., R.2W.
RANGE IN CHARACTERISTICS:
Average annual soil temperature - 47 to 54 degrees F.
Average Summer temperature - 64 to 71 degrees F.
Strongly contrasting textures - depths below 40 inches
A horizon
Hue - 10YR or 2.5 Y
Value - 5 or 6 dry, 3 to 5 moist
Chroma - 2 or 3 dry and moist
Organic matter upper 7 inches - less than 1.5 percent
Reaction - neutral to slightly acid
C horizons
Value - 6 through 8 dry, 4 through 6 moist
Chroma - 3 or 4 dry and moist
Texture - COSL, SL
Control section 10 to 40 inches - less 18 percent clay and less 35 percent coarse fragments
Reaction - slightly acid to mildly alkaline
A weak carbonate horizon is common below 2 to 3 feet depth.
COMPETING SERIES: These are the Jenness and Luckyrich series. Jenness soils are dominantly loam or silt loam in the upper part of the 10 to 40 inch control sections. Luckyrich soils have a 54 to 59 degrees soil temperature and are dry for 130 days, June through October.
GEOGRAPHIC SETTING: The Lolalita soils are on level to very steep uplands and terraces at elevations of 2,000 to 4,500 feet. Many areas have south facing slopes. Slopes range from 0 to 75 percent. The soil formed chiefly in unconsolidated sediments from intrusive acid igneous rocks. The climate is semiarid and summers are dry. The average freeze-free period is 110 to 170 days, and the average annual precipitation is 8 to 12 inches, including 1 to 2.5 feet of snow.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing Jenness soils and the Chilcott, Lanktree, and Payette soils. Chilcott and Lanktree soils have clayey argillic horizons. Payette soils have mollic epipedons.
DRAINAGE AND PERMEABILITY: Well and somewhat excessively drained; slow to rapid runoff; moderately rapid permeability.
USE AND VEGETATION: Mostly range, but some areas on gentler slopes are used for irrigated cropland. The natural vegetation is chiefly big sagebrush, Sandberg bluegrass, Indian ricegrass, bluebunch wheatgrass, cheatgrass, three-awn grass, and forbs.
DISTRIBUTION AND EXTENT: Southwestern Idaho and possibly southeastern Oregon. The series is of moderate extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Portland, Oregon
SERIES ESTABLISHED: Gem County (Emmett Valley Area), Idaho, 1949.
REMARKS: Diagnostic horizons and features recognized in this pedon:
Ochric Epipedon - 0 to 3 inches (A horizon)