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• LOCATION BOWDISH CO+UT
<br />Established Series
<br />Rev. WSH-GB
<br />08/97
<br />BOWDISH SERIES
<br />The Bowdish series consists of moderately deep, well drained soils that are formed in
<br />residuum derived dominantly from sandstone and interbedded shale. Bowdish soils are
<br />on mesas, benches, ridges, and escarpments and have slopes of 1 to 30 percent. The
<br />mean annual precipitation is about 13 inches and the mean annual temperature is about
<br />47 degrees F.
<br />TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Ustic Haplocalcids
<br />TYPICAL PEDON: Bowdish loam - pinon-Juniper woodland. (Colors are for air dry soil
<br />unless otherwise noted.)
<br />A--O to 5 inches; brown (7.5YR 5/4) loam, dark brown (7.5YR 4/4) moist; weak medium
<br />subangular blocky structure; slightly hard, very friable, nonsticky and slightly plastic;
<br />strongly effervescent; moderately alkaline (pH 8.0); clear smooth boundary. (4 to 8
<br />inches thick)
<br />Bw--5 to 12 inches; light brown (7.5YR 6/4) loam, brown (7.5YR 5/4) moist; moderate
<br />medium subangular blocky structure; hard, friable, nonsticky and nonelastic; lime
<br />disseminated throughout; violently effervescent; moderately alkaline (pH 8.0); clear
<br />smooth boundary. (6 to 12 inches thick)
<br />Bk--12 to 23 inches; pinkish white (7.5YR 8/2) gravelly loam, light brown (7.5YR 6/4)
<br />moist; weak medium subangular blocky structure; hard, friable, nonsticky and slightly
<br />plastic; 15 percent pebbles; lime disseminated throughout; violently effervescent;
<br />. moderately alkaline (pH 8.2); abrupt wavy boundary. (10 to 20 inches thick)
<br />R--23 inches; hard sandstone.
<br />TYPE LOCATION: Montrose County, Colorado, about 2.5 miles west and 3.5 miles
<br />north of Uravan, 150 feet east and 700 feet south of the northwest corner, sec. 18, T. 48
<br />N., R. 17 W.
<br />RANGE IN CHARACTERISTICS: Depth to the calcic horizon ranges from 5 to 20
<br />inches. Depth to the lithic contact ranges from 20 to 40 inches.
<br />The A and Bw horizons have hue of 7.5YR or 5YR, 4 to 6, 4 or 5 moist and chroma of 2
<br />to 4. The rock fragment content ranges from 0 to 30 percent, and is predominantly
<br />pebble and cobble sized. Reaction is mildly alkaline or moderately alkaline. The Bk
<br />horizon has hue of 10YR through 2.5YR hue, 5 to 8, 3 to 6 moist, and chroma of 3 to 6.
<br />The texture is loam, sandy clay loam, clay loam, or thin layers of sandy loam. The clay
<br />content is 18 to 35 percent. The rock fragment content is 0 to 30 percent, and is
<br />predominantly pebble size. Reaction is moderately alkaline or strongly alkaline. The
<br />calcium carbonate equivalent ranges from 15 to 40 percent. COMPETING SERIES:
<br />These are the Abra, Bighams, Cibeque, Copeman, Creel, Darvey, Harvey, Hernandez,
<br />Honlu, Numa, and Pultney series. Abra, Cibeque, Darvey, Harvey, Hernandez, Honlu,
<br />and Numa soils are deep. Pultney soils have 10YR and yellower hues and have 10 to 15
<br />percent exchangeable sodium in the Cky horizon. Bighams soils have a paralithic
<br />contact at 20 to 40 inches. Creel soils have soil temperatures of 54 to 59 degrees F.
<br />Copeman soils have horizons of secondary gypsum accumulation.
<br />GEOGRAPHIC SETTING: Bowdish soils are on mesas, benches, and escarpments.
<br />Slopes range from 1 to 30 percent. The soil formed in residuum derived dominantly from
<br />interbedded sandstone and shale. Elevation ranges from 5,000 to 7,300 feet. The mean
<br />annual precipitation ranges from 9 to 15 inches. Mean annual temperature ranges from
<br />~ 46 to 50 degrees F. The frost-free season is about 110 to 150 days.
<br />(REVISED 9/99) 2.04.9-37
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