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<br />n,
<br />LJ
<br />Particle-size control section: 18 to 35 percent clay
<br />Depth to calcic horizon: 12 to 39 inches
<br />Depth to secondary calcium carbonate: 6 to 30 inches
<br />A horizon:
<br />Hue: 2.SYR to 10YR
<br />Value: 4 to 6 (3 to 5 moist)
<br />Chroma: 2 to 6
<br />Texture: very fine sandy loam, fine sandy loam, or loam
<br />Rock fragments: 0 to 25 percent gravel
<br />Reaction: neutral to moderately alkaline
<br />Bt and Btk horizon:
<br />Hue: 2.SYR to 7.5YR
<br />Value: 4 to 7 (3 to 7 moist)
<br />Chroma: 3 to 6
<br />Texture: sandy clay loam, clay loam, or loam
<br />Rock fragments: 0 to 15 percent
<br />Calcium carbonate equivalent: 0 to 5 percent
<br />Reaction: neutral to moderately alkaline
<br />Bk horizon:
<br />Hue: 2.5YR to 7.SYR
<br />Value: 5 to 8 dry (4 to 8 moist)
<br />Chroma: 2 to 6
<br />Texture: very fine sandy loam, fine sandy loam, sandy clay loam, loam, sandy loam, clay loam, or
<br />silt loam
<br />Rock fragments: 0 to 35 percent gravel and cobbles
<br />Calcium carbonate equivalent: 15 to 45 percent
<br />Reaction: moderately to very strongly alkaline
<br />COMPETING SERIES: These are the Hiland and Solirec series. Hiland soils have less than 15
<br />percent carbonates in the calcic horizon. Solirec soils are in MLRA 34 and receive maximum
<br />precipitation in spring and fall. Similar soils and previously competing series are (Ustic Haplargids)
<br />Bowback, Cambria, Cushman, Decolney, Forkwood, Fort, Maysdorf, Pugsley, Teckla, Yenlo and
<br />(Ustollic Haplargids) Balon, Buckle, Cerrillos, Clovis, Fattig, Fernando, Flaco, Gaddes, Gapbutte,
<br />Hagerman, Harboard, Los Alamos, Millett, Oelop, Olney, Palacid, Penistaja, Pokemen, Potts,
<br />Progresso, Quagwa, Redpen, Scholle, Selpats, Spangler, Spenlo, Sundance, Tapia, Threetop,
<br />Toluca, and Tuweep. Only Cerrillos, Clovis, Fernando, Millett, Scholle, Tapia, Toluca, and Tuweep
<br />soils are reclassified to Calciargids under the 7th Edition, Cerrillos soils are dryest from October to
<br />May. Clovis soils receive more than half of their precipitation between the months of July and
<br />October. Fernando soils contain 50 to 80 percent silt in the solum and are in MLRA 51. Millett soils
<br />contain 25 to 75 percent gravel and cobbles in the lower part of the solum. Scholle soils contain 15
<br />to 35 percent gravel in the control section. Tapia soils contain caliche fragments in the Bt and Bk
<br />horizons. Toluca soils are in MLRA 58A and are yellower than SYR throughout. Tuweep soils are
<br />yellower than 5YR and formed in alluvium from pyroclastics and basalt.
<br />GEOGRAPHIC SETTING:
<br />Parent material: reworked eolian material and alluvium derived from sandstone
<br />Landform: alluvial fans, terraces, hills, and mesas
<br />Slopes: 0 to 15 percent
<br />Elevation: 4,400 to 7,800 feet
<br />Mean annual temperature: 46 to 55 degrees F
<br />Mean annual precipitation: 9 to 14 inches
<br />(REVISED 9199)
<br />2.04,9-27
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