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<br />Map unit: GcS Turley loam, Wet, Saline, 0 to 5 percent slopes <br /> <br />Description Category: AGR <br /> <br />Agronomic <br /> <br />This unit is poorty suited for irrigated crops. The main limitation is salinity, Most areas <br />will need extensive reclamation before crops can be grown. A combination of leaching <br />and drainage wlU be required for reclamation. Salinity can be reduced by I <br />eachlng salts from the soil using irrigation water that is low in content of salts, Tile <br />drainage can be used to lower the water table if a suitable outlet is available, Intensive <br />management is required to reduce the salinity and maintain soil productivi <br />ty. <br />Description Category: XCS Capability Subclass <br /> <br />Capability Subclass 4E; irrigated; 7C; non Irrigated <br /> <br />Description Category: ZCS Class Legend <br /> <br />Capability classification is the grouping of soils to show, in a general way. their <br />suilabi\itj 101 most kinds ollarming. It is a practical classification based on limitations 01 <br />the soils. the risk of damage when they are used, and the way they respond <br />to treatment. The soils are classified aCCOrding to degree and kind of permanent <br />limitation, but without consideration of major and generally expensive landforming that <br />would change the slope. depth, or other characteristics ollhe soils; without consider <br />ation of possible unlikely major redamation projects. <br />Class IV ~ Very severe limitations that restrict the choice of crops, require very careful <br />management, or both. <br />Class VII - Not suited for cultivation, Very severe limitations. Suited far range, <br />woodland or wildlife uses if carefully managed. Usually cannot apply physical practices <br />such as pitting, furrowing, seeding, etc. <br />E - Erosion by wind of water is the major problem. <br />C . Climate is the major hazard. Growing season may be very short; there is a shortage <br />of rainlall or both. <br />Description Category: SOl Soil <br /> <br />This unit consists of very deep, well drained soils on alluvial fans and terraces. These <br />soils fanned In mixed alluvium derived from sedimentary rock sources, The surface <br />layer is loam about 18 inches thick. The upper 29 Inches 01 the undellying materia <br />I are day loam with strata of loamy sand, Below this to a depth of more than 60 inches <br />is sandy loam and sandy clay loam, This soil is saline throughout. Permeability of this <br />sallis moderately slow. Available water capacity is moderate. Effective ro <br />oting depth is 60 inches or more. Runoff is medium, and the hazard of water erosion is <br />moderate. A seasonal, irrigation induced, high water table fluctuates between 30 and <br />40 Inches from April through September. Piping is a hazard. <br /> <br />Thursday, May 25, 2000 <br /> <br />Page 5 0[9 <br />