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2.04.9 <br />These soils are also suited to Fremont cottonwood. They can produce 7,000 <br />board feet per acre (Doyle rule) of merchantable timber in a fully stocked <br />stand of even -aged trees that are 40 years old. The main limitations to the <br />use of these soils for trees are susceptibility to flooding and the high water <br />table. <br />Areas of this map unit provide habitat for many kinds of wildlife. Ring- necked <br />pheasant use these areas for cover and feed in adjacent farmland, and <br />mourning dove nest in the cottonwoods and tamarisk that grow in the areas. <br />Restricting grazing of livestock helps to maintain quality of wildlife habitat. <br />Where these soils are suitable for crops, establishment of food plots, tree <br />and shrub plantings, and nesting cover helps to improve habitat for upland <br />wildlife. Where the water table is high, open water areas can be developed <br />by blasting or use of heavy equipment. <br />47 — Kech -Rock Outcrop, 10 to 40 percent slopes. <br />These moderately steep to hilly soils are on hills and ridges in uplands. <br />Elevation ranges from 5,500 to 7,600 feet. Average annual precipitation is <br />about 14 inches, average annual air temperature is about 44 degrees F, and <br />the average frost -free season is about 115 days. <br />Included with this complex in mapping are a few small areas of Progresso, <br />Lazear, and Shavano soils and deep, stony soils. The included soils make <br />up 20 percent of this complex. <br />The Kech soil is shallow and well drained and overlies bedrock at a depth of <br />10 to 20 inches. It formed in residuum and in locally transported sediment <br />derived from sandstone and interbedded shale. <br />Typically the surface layer of the Kech soil is brown loam about 4 inches <br />thick. The subsoil is brown clay loam about 15 inches thick. Sandstone is at <br />a depth of about 19 inches. <br />PR -14 2.04-104- 03/14 <br />