2004-06-08_REVISION - M2003021 - Laserfiche WebLink

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Utric~al senes t~escnpnon - xirvt genes rage ~ or ~ Consistence: soft to slightly hazd Carbonates: In some pedons it is leached to depths of 2 to 8 inches. Reaction: slightly alkaline or moderately alkaline (pH 7.6 to 8.2) When the surface horizons have value as dark as 5 dry and 3 moist they contain less than 1 percent organic carbon, or they are thin enough that if mixed to depth of 7 inches the soil has an ochric epipedon. C horizon: Hue: SY through 7.SYR Value: 6 or 7 dry, 4 through 6 moist Chroma: 2 through 6 Reaction: moderately to strongly alkaline (pH 8.0 to 8.6) Calcium carbonate equivalent: 1 to 14 percent Calcium carbonate: soft masses occurs at any depths in this horizon, but it should not be concentrated into a consistent horizon of secondary carbonate accumulation. (-;O1tiIPETING SERIES: These are the El Rancho, Kishona, Mikim, Neville, Paradox, Poioague, Shavano, Sixmile, Thedalund, Theedle, and (T) Tsosie series. Shavano, Sixmile, Thedahund, and Theedle soils have bedrock at some point above a depth of 40 inches. El Rancho, Neville, and Pojoaque soils have hue of SYR or redder. Kishona soils have cooler annual soil temperature and have moisture control sections that aze dry more than one-half the time, cumulative, that the soil temperature at 20 inches is above 41 degrees F. Kishona soils aze also dry in all parts of the moisture control section for at least 60 consecutive days following July 16. Mikim and Paradox soils are dry in some parts of the moisture control section for 15 consecutive days from Mav 15 to July 15 when the soil temperature at 20 inches is greater than 41 degrees F. In addition, Pazadox soils have hues of SYR and redder. Tsosie soils are dry in all parts of the soil moisture control section from April 15 to July 1. GEOGRAPffiC SETTING: Slope: 0 to 20 percent Landform: alluvial fans usually below escarpments of sedimentary rock Landscape: uplands Parent material: parent sediments derived from a variety of rocks, including sandstone, shale, and similar materials. Mean annual precipitation: 11 to 14 inches, with peak periods of precipitation occurring during the spring and early summer. Mean annual temperature: 47 to 53 degrees F. Mean annual summer temperature is 74 degrees F. GEOGRAPHICALLY ASSOCIATED SOILS: These are the Shingle soils and the competing Thedalund soils. The three series often form a toposequence. Shingle soils have bedrock at depths of 10 to 20 inches. DRAINAGE AND PERMEABILITY: Drainage: Well Runoff: low to high Premeability: moderate USE AND VEGETATION: These soils are used principally as native pastureland; however, they are used as dry or irrigated cropland in some localities. Native vegetation typically consists of short grasses, of which blue grama predominates. 4/29/2004