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series Description <br />3/31/04 1:44 PM <br />Structure: granulaz structure, but has subangulaz blocky structure in some pedons. <br />Consistence: soft to slightly hazd <br />Carbonates: In some pedons it is leached to depths of 2 to 8 inches. <br />Reaction: slightly alkaline or moderately alkaline (pH 7.6 to 8.2) <br />When the surface horizons have value as dark as 5 dry and 3 moist they contain less than 1 percent organic <br />carbon, or they aze thin enough that if mixed to depth of 7 inches the soil has an ochric epipedon. <br />C horizon: <br />Hue: SY through 7.SYR <br />Value: 6 or 7 dry, 4 through 6 moist <br />Chroma: 2 through 6 <br />Reaction: moderately to strongly alkaline (pH 8.0 to 8.6) <br />Calcium cazbonate equivalent: I to 14 percent <br />Calcium carbonate: soft masses occurs at any depths in this horizon, but it should not be concentrated into a <br />consistent horizon of secondary cazbonate accumulation. <br />COMPETING SERIES: These aze the El Rancho, Kishona, Mikim, Neville, Pazadox, Poioague, Shavano, <br />Sixmile, Thedalund, Theedle, and (T) Tsosie series. Shavanq Sixmile, Thedalund, and Theedle soils have <br />bedrock at some point above a depth of 40 inches. El Rancho, Neville, and Pojoaque soils have hue of SYR or <br />redder. Kishona soils have cooler annual soil temperature and have moisture control sections that are dry more <br />than one-half the time, cumulative, that the soil temperature at 20 inches is above 41 degrees F. Kishona soils aze <br />also dry in all parts of the moisture control section for at least 60 consecutive days following July 16. Mikim and <br />Paradox soils aze dry in some parts of the moisture control section for 15 consecutive days from May 15 to July 15 <br />when the soil temperature at 20 inches is greater than 41 degrees F. In addition, Pazadox soils have hues of SYR <br />and redder. Tsosie soils are dry in all parts of the soil moisture control section from April 15 to July 1. <br />GEOGRAPHIC SETTING: <br />Slope: 0 to 20 percent <br />Landform: alluvial fans usually below escarpments of sedimentary rock <br />Landscape: uplands <br />Parent material: parent sediments derived from a variety of rocks, including sandstone, shale, and similar materials. <br />Mean annual precipitation: 11 to 14 inches, with peak periods of precipitation occurring during the spring and <br />eazly summer. <br />Mean annual temperature: 4? to 53 degrees F. <br />Mean annual summer temperature is 74 degrees F. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These aze the Shingle soils and the competing Thedalund <br />soils. The three series often form a toposequence. Shingle soils have bedrock at depths of 10 to 20 inches. <br />DRAINAGE AND PERMEABILITY: <br />Drainage: Well <br />Runoff: low to high <br />Premeability: moderate <br />USE AND VEGETATION: These soils are used principally as native pastureland; however, they are used as <br />dry or irrigated cropland in some localities. Native vegetation typically consists of short grasses, of which blue <br />grama predominates. <br />DISTRIBUTION AND EXTENT: Eastern Colorado, southeastern Wyoming, and northeastern New Mexico in <br />MLRA 69. The series is of moderate extent. <br />http://ortho.ftv+.nres.usda.gov/cgi-bin/osd/osdname.cgi?-P Page 2 of 3 <br />