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<br />Map unit: Rs <br /> <br />Ustifluvents, 0 to 2 percent slopes <br /> <br />Description Category: AGR <br /> <br />Agronomic <br /> <br />This unit is poorty suited for irrigated crops. The main limitations are poor drainage, <br />high water table, salinity, and occasional flood hazard. This unit is best suited for <br />wildlife habitat. During non-nesting periods, occasional mowing or burning ina <br />eases the vigor of plants. Salt-tolerant species are most suitable for planting. <br /> <br />Description Category: XCS Capability Subclass <br /> <br />Capability Subclass 7C; nonlITigated <br /> <br />Description Category: ZCS Class Legend <br /> <br />Capability classification is the grouping of soils to show, in a general way. their <br />suitability for most kinds of farming. It is a practical classification based on limitations of <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 landfonning that <br />would change the slope, depth, or other characteristics of the soils: without consider <br />ation of possible unlikely major reclamation projects. <br />Class VII - Not suited for cultivation. Very severe limitations. Suited for range, <br />woodland or wildlife uses If carefully managed. Usually cannot apply physical practices <br />such as pitting, furrowing, seeding, etc. <br />C - Climate is the major hazard. Growing season may be very short there is a shortage <br />of rainfall or both. <br />Description Category: SOl Soil <br /> <br />This unit consists of areas of Ustifluvents along narrow valley bottoms. Areas are long <br />and narrow rangIng from 50 to 1,000 acres in size. Drainage varies from somewhat <br />poo~y to moderately well. Ustifluvents have a surface layer of sandy loam about 2 i <br />nches thick, Below this is 6 inches of very fine sandy loam underlying material. The <br />next layer of underlying material is stratified loamy sand, fine sandy loam, and sandy <br />clay loam about 14 inches thid<. The ""'.. part 01 the unde~ying material to a d <br />epth below 60 inches is very gravelly sandy loam. Permeability of this soil is rapid, <br />Available water capacity is low. Runoff is slow, and the hazard of further water erosion <br />is slight. A water table occurs at 35 to 45 inches in this soil. and during A <br />pol to August this water \able fluctuates to within 12 inches of the surface. Ustifluvents <br />have an occasional flood hazard. <br /> <br />Thursday, May 25, 2000 <br /> <br />Page 90f9 <br />