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<br />EXHI(3IT I SOILS INFORPIIITION <br />!1. Type, Thickness, and Distribution <br />Altvan Loam <br /> <br />This is a deep, well drained soil formed in old alluvium from material <br />deposited by major rivers in the area. Included are some soils with clay <br />loam subsoils and sane soils with evidence of poor drainage. Also in- <br />chided are some long narrow streaks of sand and gravel deposits. Typically <br />the surface layer is grayish brown loam abo t 10 ches thick. The subsoil <br />is brown to light yellowish brown clay loam and sandy cl,ry loam about <br />15 i ches thick. The sub stratum is calcareous loamy sand or sandy loam <br />abou 6 i hes thick over sand and gravel, Denth to sand and gravel ranges <br />from 20 to 40 inches. Permeability is moderate and avail.~hle r•+ater- capacity <br />is moderate. Effective rooting depth is 20 to 40 inches. Surface run- <br />_~- <br />off is slow and erosion hazard is low. This soil is used almost entirely <br />fog- irrigation and is suited to all crops adapted to this area. <br />lJind breaks and environmental plantings are well suited nn this soil, in- <br />cluding all trees and shrubs adapted to this area. Trees that are best <br />suited and have a good survival are Rocky r•lountain Juniper, Eastern Red <br />Cedar, Ponderosa Pine. Siberian Elm, Russian Olive, and I!ackberr•y. Shrubs <br />best suited are Skunkbush Sumac, Lilac, Siberian Peashrul,, and Qr,ipriCdn <br />Plum. This soil can produce habitat elements that are Irirlhly suitable <br />for open wildlife including pheasants, cottontail, and rnurning doves. <br />So~~re types of crop production is also suitable for oneni,~nd wildlife, <br />especially pheasant. Practices that would enhance ones !and wildlife <br />nnnulations could include three and shrub plantings, and undisturhed <br />nesting cover. <br />