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<br />17-Greece loam, 1 to 6 percent slopes. This is a
<br />deep, well drained soil. II loaned in alluvial material and
<br />is on alluvial tans, flood plains, and terraces. Elevation
<br />ranges Irom 6,000 to 7,500 feel. Averag=_ annual precipi~
<br />lalion is about 20 inches, average annual air temperature
<br />is about 40 degrees F, and the average frostlree
<br />season is zbout 90 days.
<br />Typ~cally the surface layer is dark brown loam about
<br />19 in_hos thick. The uppzr part of the underlying materi-
<br />al is pale broom sandy loam about 11 inches IhiCY.. Tha
<br />lower parr, to a depth of 60 inches. is pal= brown sandy
<br />bzm Iha1 has a few Lne, taint, yellowish brown mottles.
<br />Permeability is rapid, and available water capacity is
<br />moderate. Ellective rooting depth is about 55 inches.
<br />Surlace runofl is medium. The hazard of erosion Irom
<br />wind is slight and Irom water is moderate. The wafer
<br />table is al a depth of 3 l0 6 feet.
<br />Included wish this soil in mapping are a few small
<br />areas of Fughes and Curecanli soils. Also included are
<br />some areas of wet alluvial land. In some areas the sur~
<br />lace lapin is sandy loam or trght clay loam. Also included
<br />are areas of extremely gravelly and cobbly soils.
<br />The native vegefal~on on this soil consis!s manly p!
<br />western whaatgrass, brome, sctlges, big sagebrush, ser~
<br />viceberry, and cottonwood bees.
<br />N.ost areas of this soil are used for irrigated crows,
<br />mc:nly hay and pasture.
<br />This soil iS suilad to all of Ih_ crops commonly gro+vn
<br />in the survey area. Shortness of the gro.:•ing season may
<br />Lmit yields and the choice of crops Care is necessary to
<br />prevznl v.•irtl and water erosion. t.!aintaining thz consent
<br />o! organic mailer is important The soil can be used for
<br />continuous raw crops, or it can be planted to close-
<br />grov:ing crops about one~fourlh of the time. 6eczuse Ihi;
<br />soil is coarso textured, Irequent application of irrigzbpn
<br />water is necessary Usng green manure crops, re;urn:ng
<br />crop residue to the soil, good management 07 irrigation
<br />wafer, using grasses and legumes in rotation, land level
<br />ing, and minimum tillage help to maintain orgznic ma9ar
<br />coolant and control erosion.
<br />This soil ca•~ be used (or irrigated pasture and hay
<br />crops II i5 well avited to alfalfa, smooth biome, Orchard
<br />grass, and clove:. br",gallon can be tlone by contour
<br />d~lch, corrugation, and lurror:~ methods.
<br />Because annual preop.falion is low and has pocr sea-
<br />sonal distribution, Ih:s soil is not suited to nonirriozted
<br />crops. However, nonirngatcd pasture grasses own be
<br />planted late in summer and in tall to protect the soil Ircrn
<br />erosion and 1o provide gazing for livesixk„ ii propel
<br />pasture management is practiced. Grassed w~heatgrass.
<br />imermed~ate whaatgrass, end smooth brome arc adapt-
<br />ed spec~as
<br />Tne potential plant community on Iltis soil consists
<br />mainly o1 western whaatgrass and balm n•udp•z. As
<br />rangy. oontlition deteriorates, w25L'rn whaatgrass tle-
<br />aeases, (orbs and woody shrubs iccrcas^. and untl]sira~
<br />bee weeds and annual plants invade antl become more
<br />abuntlan;.
<br />Seeding is atlvisebte it range is in poor Condition.
<br />Western v+h=afgrass, basin wiltlrye. and slender +•: neat
<br />grass are suitable for szading. Grasses Ihaf mac; the
<br />Seasonal requirements of Iivesl0ci: should b= sale oletl.
<br />Preparing a sectlhed and drrlfing th_ seed help to cbtzei
<br />the 6es1 results. On Some sites control or comp=_Lng
<br />shrubs is required to improve range conddion. Fencng of
<br />heeded arezs is required, because this soil is more pro-
<br />duclive and is in a lov.•er position than adt;cenl soils ar~d
<br />generally has the stocky+aler supp'p for ad;acent so~'s
<br />Stockwater d_velop:nents may ba requucJ.
<br />This soil is in productive, Io+v~iy.ng areas thz. recen•C
<br />additional mois!ure from adjacen! soi;s on uplands It is
<br />used for v,•inler range by mule tleor and has porzn!ia! la
<br />development of shrub plantings zrd toed p:o.s.
<br />It this soil is used for urban development. the main
<br />limitation is daplh to the water Izh!=. This Lm~:z;ro^ can
<br />b_ overcome by the use of propz: des~yn and const•uc-
<br />tion methods.
<br />This soil is in capability subclasses IVe. irrigated, and
<br />Vle, nonirri?aced.
<br />20-Cryoborolis, very stony. The steep soils in th';
<br />broadly dc:ined unit ere on uplands in the 1.!uddy Creek
<br />end Anthracite Creek drainzgewzys. The so:a vary in
<br />texture but generally are stoop. Tha mapped ara=.i Com~
<br />money are dasecletl by infcrmilfen! drainag.:::zc; Areas
<br />of deep soils are interspzrsed v+:ih a:cas +•:herc tl+a soil
<br />material is shallow to bedrock. Outcrops of sznds!ono er
<br />shale bedrock are common Slopzs are more Than t0
<br />percen!.
<br />Included with these soils in mzpp'ng are smaa areas o!
<br />Fuches, Curacanti, anJ Coch~: toga soils. Sm~l! slips pr
<br />landslitles are common on sfeepe~ sl:,p~cs.
<br />Surlace runofl is rapid, 2ntl the hazard of e:os:on is
<br />high.
<br />The native vzgefzGon consists mainly o: eenirer
<br />limber, aspan, Gambol oak. servicaberrp, and adaptr:tl
<br />grasses Colorado blue spruce, Douglzs:-, and ppnde~-
<br />osa pine ate the moll common coni!ers. Thane soils arc
<br />used for r::ldlile habitat, recrez:;onal pu;poscs, timber,
<br />end timded grazing.
<br />It these soils are used for urh_a d^velopmcn;, the
<br />main Lmi;aaons ate s'opz znd s'oniress. Tnzse I:mite
<br />lions arc tl'licull or imp:acticN to ovzrcoma.
<br />These soils are in capetil~;y wbclass 1'1.=, ron'rriga;-
<br />ed.
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