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, .1�.�.-. .ram....—_ �.�.�..-...._.-..�.__...+...-....s,-.�---z..�.... <br /> I <br /> 2.04.9 <br /> Page 32 of 46 <br /> CeD -- Table Mountain loom, 5 to 15 percent slopes . This deep, <br /> S well drained soil is on foot slopes. It formed in alluvium and colluvium <br /> derived dominantly frpm sedimentary rock. Slope is 5 to 15 percent. The <br /> r-7 <br /> native vegetation is mainly grass. Elevation is 6, 200 to 7 , 800 feet. The <br /> average annual precipitation is 15 to 22 inches , the average annual <br /> air temperature is 47, to 49 degrees F. , and the average frost-free season <br /> is 90 to 140 days . <br /> Typically the surface layer is loam 6 inches thick. The subsoil is <br /> clay loam 19 inches thick. The substratum to a depth of 60 inches is <br /> loam. The soil is neutral to a depth of 25 inches and moderately alkaline <br /> and calcareous below that depth. <br /> Tncluded in this '• unit is 10 percent similar soils that are gravelly <br /> and cobbly. <br /> The permenbi_lity of this Table Mountain soil is moderate. Available <br /> ter capacity is high . Effective rooting depth is 60 inches or more. <br /> Runoff is slow to medium and the hazard of water erosion is high to very <br /> high. <br /> This unit is used mainly for irrigated hay and pasture. It is also <br /> sad for . ._ngcl "nd and nonirrigated cropiind. <br /> This unit is well suited to irrigated hay and pasture. Irrigation <br /> water can be applied by corrugation and by flooding from contour ditches . <br /> Leveling helps to insure the uniform application of water. If corrugation <br /> systems are used, runs should be on the contour or across the slope. <br />