2009-01-22_PERMIT FILE - M2009010

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?XM-F 6 tr 6 S r T-t ()Es c 2 p l-, o .AJ Kit Carson County, Colorado Slope range: 0 to 2 percent Surface layer texture: Loam Depth to restrictive feature: Natric horizon at a depth of 2 inches Drainage class: Moderately well drained Parent material: Clayey alluvium Native plant cover type: Rangeland Flooding frequency. Rare Water table: Present within the profile Sodicity: Sodic within a depth of 30 inches Available water capacity: Mainly 0.3 inch Typical profile: A-0 to 2 inches; loam Btn1-2 to 6 inches; clay Btn2-6 to 13 inches; clay Btn3-13 to 24 inches; clay Btkn-24 to 38 inches; clay Btk-38 to 47 inches; clay loam Bk1-47 to 56 inches; silty clay Bk2-56 to 80 inches; silty clay Additional components: Glenberg and similar soils: 5 percent Haverson and similar soils: 5 percent Nunn and similar soils: 5 percent Paoli and similar soils: 4 percent Lodgepole and similar soils: 1 percent Management Major uses: Irrigated pasture and rangeland The main limitations affecting hay and pasture are flooding, the seasonal water table, the hazard of soil blowing, and excess sodium. Grazing during wet periods results in surface compaction and poor tilth. The concentration of salts and alkali limits the production of plants that are suited to hay and pasture. The leaching of salts from the surface layer is limited by the high water table. The proper management of irrigation water reduces the concentrations of salt. Salt-tolerant species are the most suitable for planting. Controlled livestock management is the major management practice needed on this map unit. This map unit is not suited to windbreaks and environmental plantings because of the flooding, the excess sodium, and the wetness. Eckley-Wages complex, 4 to 20 22percent slopes Setting Location: This map unit occurs throughout the survey area. Elevation: 4,301 to 5,200 feet Mean annual precipitation: 13 to 15 inches 39 Frost-free period: 145 to 148 days Note: This map unit is on gently sloping to moderately steep valley hillslopes. The native vegetation is mainly grasses. Component Description Eckley and similar soils Percent of the map unit: 40 percent Landform: Hills Landform element. Shoulders Slope range: 4 to 20 percent Surface layer texture: Gravelly sandy loam Depth to restrictive feature: Strongly contrasting textural stratification at a depth of 15 inches Drainage class: Well drained Parent material. Fine-loamy eolian deposits over sandy and gravelly alluvium Native plant cover type: Rangeland Flooding: None Available water capacity. Mainly 1.7 inches Typical profile: A-0 to 4 inches; gravelly sandy loam Bt-4 to 12 inches; gravelly sandy clay loam BC-12 to 15 inches; gravelly sandy loam 2C1-15 to 22 inches; gravelly sand 2C2-22 to 60 inches; gravelly sand Wages and similar soils Percent of the map unit: 30 percent Landform: Hills Slope range: 4 to 12 percent Surface layer texture: Loam Depth to restrictive feature: More than 60 inches Drainage class: Well drained Parent material. Fine-loamy eolian deposits over fine- loamy alluvium Native plant cover type: Rangeland Flooding: None Available water capacity. Mainly 8.8 inches Typical profile: A-0 to 5 inches; loam Bt-5 to 12 inches; loam Bk-12 to 17 inches; loam C-17 to 60 inches; loam Additional components Ascalon and similar soils: 10 percent Altvan and similar soils: 5 percent Manter and similar soils: 5 percent Rock outcrop: 5 percent Sampson and similar soils: 5 percent Management Major uses: Rangeland, gravel, and roadfill