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• f.n{;-(:nrihr rnhblr h,:nn, $ lu i~n•rrrut =Ir, pre,
<br />'1'hi.c gently slnpinlr to rnnrlcrnt.clc s.c•cp soil ucculucs
<br />nlluaial f:uls ;nut fnolhills slung[ the \ceslcrn crlgc of
<br />the valley. The s(.ccpcr slopes :u'e short :nul the more
<br />gentle slopes rnnl:c In as much ns i mile in lent,•ih. The
<br />profile of this soil is similar to the one rlescvibcd as
<br />represenintiee of the series, but is typic;dly more
<br />cnbLly and gr;n~elly.
<br />]ncluded with this soil in mop{ring arc areas of
<br />Travelers soils, +chich make up 5 percent of the unit.
<br />Pock crofs out in a Ecru areas. About ;percent of lhis
<br />unit is included areas of Stulfner In:un, 7 to fi percent
<br />slopes, and ;Ibout ] 5 percent :wens of Lnhun In;un, .^, to
<br />G percent slopes.
<br />Runoff is moderate. The erosion hazard is slight.
<br />This soil is used mostly fw' range and u•ilrllife hahi-
<br />•t.at (ftg. 3). Capability unit Vlls--3 nuuirrig;tled; Limy
<br />Peach range site.
<br />Gerrard Series
<br />The Gerrard serie's consists of some+\'hat Poorly'
<br />[)rained or pom'ly drained soils ]? Lo 2G inches deep
<br />o'er sand and errxcel. 'these soils formed in alluvium
<br />on ]o\t' terraces, flood plains, and alhteinl inns. Slopes
<br />tu'e 0 to ] percent. L•'levatimt is 7,(i00 to S,:,UO feet.
<br />'\ralural ecgelation is dominantly' sed!,es, rushes,
<br />tufted hair;,*rass, and +\'ild iris. '1'hr ;nerage annual
<br />precipitation is about 9 inches, the mean :atonal air
<br />temperature is about 91° F, and the trust-free season
<br />is 95 to 110 days.
<br />In a repre~entatite ]uofile the surface l;ty'cr is \cry
<br />dark gray' loam altout ]9 inches thick. It is ntuttled
<br />with brown in the lower (,art 'the un'lcrlyiu', netlerial
<br />is tery gr:rvell}' loamy s:uul that ezlonds to a depth of
<br />GO inches ar more.
<br />PernlealJilitc is nn,rlor:tte, and the acailnl,le \\aLcr
<br />ca)\acity is moderate. Reaction is nrntrnl m' mildly
<br />alkaline. The effecLice rooting depth is 12 to 20 inches.
<br />Depth to~t]te sc;lsonal high \cater tal,le is alt<ntt 1 to
<br />1?/, feet. The table is highest late iu spring and in
<br />summer.
<br />'these soils are used for irrigated me:ldou•, irrigated
<br />crops, and range.
<br />Representntice Cn~ofile of Gttl'1'Ard lo;+m, 2,600 feet
<br />south and °_0 feet east of the north\cest corner sec. 25,
<br />T. 90 N., F.. 5 E.
<br />All-0 Lo 5 inchrs; gray (]01 P, v/1) learn, eery dark gray
<br />(]OYR 3/1) moist; strong for gr:nn~lar ~Lruclure;
<br />>oft, cen~ friable; 5 pPncnt i;,ar~~l; mild)}~ alka-
<br />line; clear smooth hnundarp.
<br />A 14__5 to 14 ind,oy; gray (7(7)7; Sl1) lu:nn, ri'ry d:n~l. gray
<br />(]USR 3/I) moist: cnnuuon medium di<li act mot-
<br />tles, hro\en (i.51'R 414) mr~ist; \~~r'ak fore sua
<br />angular block}' st rucLu re parting to moderate
<br />niediwn gt:'anular; }ford, yr ry friable; neutral;
<br />gl:adual w:n'}~ bnu ndary.
<br />TIC -J4 to GO im~hrs; c,a~c (; r:~r,~llc L~:~nt_ ::: ut d.
<br />'nc~ .1 Lorizmt i~ ]^_ In ?U iurLrc lLiok :wd is ~rry d:: rk
<br />gray ni,rl ccr}' dark I~ro'.rn tr, 1,1 a,~k hcmi ur light rl:+~' Innm.
<br />'Phc content of gr: n~el and rubblrs aLove the IIC lturixon
<br />ranges from 3 to 15 percent..
<br />CP-f:r'rl'afd~tnl. '1'hI~ lttSlt'I\' h'\'Cl s(111 b('('ll]tICS
<br />low tcrr:n'os, (loud plains, nnrl alluvial fans alon); the
<br />P,in Gr;mde and its mfl,jur trilnll;uics. Sluprs :ue 0 to
<br />1 pcrcent.'I'he soil IF ylll)IC(a Lft ]l17(1(1171g in m:uly pL•ues
<br />durhr~ s]ning ;IJUI summer udten runoff' is high from
<br />melting snn+a in the mnunt:tins, 9'he \ratm• t;fble is
<br />;rLnut 1°_ to 1R inches heluu' the surface in spring and
<br />summer, ]tut generally' drops to the gr;rvel substratum
<br />in u'iuLer. About ]0 percent of this unit is included
<br />al'Gl5 (If Shat\\".t loam, 0 Lo 7 percent slopes, :utd about
<br />]0 pt'rcent m'ens of Al:unosa In;un ;old Totxido clay
<br />lu;nn.
<br />i;nno(f is slon'. 'I'hc erosion haz:u'd is slight.
<br />'T'his ~uil is used mostly' fur irrigated mcadou'. Irri-
<br />];:Iterl rnenrla\cs :n~e cut for h;p• or used fa' grazing.
<br />Snore arras arc used fur rultiv;lted alfalfa and small
<br />trlain, A feu' :ur;ts ;u~e uscrl fur range. Capability unit
<br />1\'tc-1 irri}dated, \')\v-3 nunirri~ated; \\'ct i\]cadow
<br />range site.
<br />Gra~cl {'its
<br />Cp-(,rnvf•1 pits ore open e~cacatinns tram which
<br />o~rav'rl has been obtained for ruadbuilding.
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