|
�f
<br /> San Joaquin County, California 43
<br /> �4
<br /> management considerations include the hazard of rare ttftaut€?turnegr; ,�
<br /> flooding. Houses, roads, and streets should be the£ ur#a helps �£prent exae ,ve runoff rettuces
<br /> constructed above expected flood levels. ,iheEhaardt`sail bfo�lv, g `ted>helps td maintain the'
<br /> p a
<br /> This ma unit is in capability class I //MCRA-17 , rafe�frat r s tat ani# �e [ r ni�matter conI'lltent
<br /> p p Y l ?sh
<br /> irrigated, and capability unit IVc-1 (M!_RA-17), f If S Usec[ nr Yt mes, develop e t en ral
<br /> nonirrigated. It is in vegetative soil group A. rttat7aeard3f€re
<br /> R #fbr cltpg�I t s ;r �s arty{d ypreerJsspyhs�uId'b ' _
<br /> MOP— 8 P'e", bY''„ 'a``S
<br /> Y� yiy� ,e '$� rYkY af�s X]1i c"orti,�tr1`)cteGf abeave SC]�p '9 �r3�
<br /> �I: '13i t i itxrit<f fa f� a L[I9 I WSE
<br /> N bifl
<br /> {� i ttt fops° hf very >w�' t�mewl'a ps�ori Thts rn p°tanstki t1 c p b�tity cx i#s fl's s ML�� 1 } @ 'E
<br /> °'I�yr 13statl'irCr fl.Cd lµyit ' 1t,;firrryet,trtF:?E frrgatedf aratfV �f#I�IA 17Inrsrairrigatei Jt is in ;:3?yiC''
<br /> Ur li}f6d neS I a G e �]
<br /> 4r^-trP
<br /> ilaytum derived rrxt rrt,xed (
<br /> "rock iao�
<br /> *a s 2 € ^,P - i[?<3i �[° ati&a °a.`t" ..S€:a> ;¢;ks:,b€.u.'`>.�iiiaa'.--- •:kYS..i."` .>tal.sa:sm 3tai-sr'€i.,#d$
<br /> 1iCfl&Imp
<br /> C1 3T1NrtFortt3aS �t
<br /> �itaW&� r,ad in ge had been , r r i~t f3 y s j d4 r� e 131 olumbia fine sandy loam, partially drained,
<br /> irecrraataQrrrt�fect; flstori is s� le #to #1�0fixt '` 0 to 2 percent slopes, occasionally flooded. This very
<br /> fie avert a alnnual ed� stat: is deep, somewhat poorly drained, nearly level soil is on
<br /> 9 p
<br /> f fhe,avera a flnual fit termor c a,Ou, J de flood plains. It formed in alluvium derived from mixed
<br /> 1Cjd tfie average`lro, Erie per`,odn' 06 t 2 t3 15 rock sources. Mottles in the profile indicate a somewhat
<br /> I v t r r Is° s Fez. 3 7d #
<br /> � ;Typ►callykteastrfC ,tayerais p11afe bTo +n`linendy€ate poorly drained soil; however, drainage has been
<br /> �E.
<br /> cam t o � es rc { beu� iryinE t r •to improved by reclamation projects. Elevation is 10 to 30
<br /> de(i bf 60 thohes I' stfdtIffod;Ught y f # wn 1 {?< feet. The average annual precipitation is about i4
<br /> jbrCtuyri,£aid yi?Ildwlsh brtiyrn, mCrttldefj�t loartl'ftrrb inches, the average annual air temperature is about 60
<br /> e
<br /> sn� {carts, and iortty 1snan ld ri7e ras,the �`E€ degrees F, and the average frost-free period is about
<br /> � Utf
<br /> ace layerls lsrri �'�� `n; y€ 8 a . 270 days.
<br /> � r;,I'ncliaded�n ttS uirrt ire 5h'lall a'I<e4 p#€C�dfIQ;��gberl� Typically, the surface layer is pale brown fine sandy
<br /> ^a'x {c at {g?iia n
<br /> �rvt f;uard�;ar�t{ Ol
<br /> f t )�} ca} loam about 12 inches thick. The underlying material to a
<br /> Ctiurhirsilntl <€:=: I;?? depth of 60 inches is stratified light brownish gray and
<br /> pa��Pif�of�s s�rrrif�r to th�.�
<br /> r r-og ra spms on sfigi tly hi �r=€p #s oft g �, ,i ,g, brown, mottled sandy loam and fine sandy loam. In
<br /> farrciscape AfsrSzCrclladefareriaif; fofl rrtba some areas the surface layer is loam or silty clay loam.
<br /> so�-1s the-knave rnodel(atty f,h teid �et + �j j_�� � Included in this unit are small areas of Dello,
<br /> i lnsrlaaddd areas rttalio 4l about 1 pdrrlf bf tht3
<br /> "to p Grangeville, and Merritt soils in landscape positions
<br /> ,:�8` d B g.'B,,.m ;.'." 3 k- 3µ8°�^. °"'�. i :a�JB .-tw`..i'R b=itf=�-. ° L.
<br /> fl," °° e.m a o those of the Columbia soil. Also included are
<br /> °°�. . df n.. similar t
<br /> M
<br /> ars a.
<br /> Permeaf�itFs de atef rep inur � oil';a small areas of Columbia soils that have a surface layer
<br /> vailadl watfapacr, siet 'F�eotifeE� sgir€ of sand or a buried substratum of fine textured material
<br /> a�otirtg:deptli is 5Q irrcfesr o =,Th"e below a depth of 30 inches. Included areas make up
<br /> b i for died t 9; c�ldp#(1 g�#'fi fen f' ► rr €otic u€�T� I about 15 percent of the total acreage.
<br /> r- f`d a1,6 gd 4'yst16mg but".fir reify��� ���d aktoy�,€Y��l.a Permeability is moderately rapid in the Columbia soil.
<br /> strtt�lredbsfciri� aftetdp �js a( eay,ftnfdf Available water capacity is moderate. The effective
<br /> irr #itrr ' ur,¢#f Sfc3tii,,and the ktird e�# s+att�r€ rooting depth of the crops commonly grown in the
<br /> £ I ( count is limited b an apparent water table that has
<br /> e�0 ion is-aslig t Tha r t � at r kt a�a ,n' rigat d Y Y Pp
<br /> areas 1 �1 5nea per;hur�Th hiar�90 � o Ttig; been lowered to a depth of 3 to 5 feet through drainage
<br /> rbsslitrt; he s €3 �sulot to rld�,�wtbcfi =� systems that require continual maintenance. Runoff is
<br /> 19
<br /> p [s du)ng teatt,ofrab€norm� 1E f tg r pzfafid g 1 a slaw, and the hazard of water erosion is slight. The rate
<br /> Itaatree aCe9u3f3lfor irrigated cr�7ps, teartt „ ?r�� of water intake in irrigated areas is 1.5 inches per hour.
<br /> v,r i yards A few'i irda , pi ed fir iT ara,3stIP 9 9
<br /> The hazard of soil blowing is slight, The soil is subject
<br /> deyelopMent; Tt�is,t rlit'nAay pts vine a �flatad ungt,€n , to occasional, brief or long periods of flooding from
<br /> December through April.
<br /> �d vaftae��TYre�e should t��+:o�side,recf i pfar�sgar��€
<br /> bl tlancement'ormiftilaf6pabrta#€off lane) se dbnvex rola Most areas are used for irrigated crops, orchards, or
<br /> €, �, vineyards. A few areas are used for homeslte
<br /> thts�Il'ifl las �t� Ci�w;fliyfi��pr�ltr�tz"arl
<br /> �taft¢yar ro s 1t ltas f yr f�m4811, is Areal �o,, development. This unit may provide wetland functions
<br /> z r[r"sa
<br /> t v�;esfar s e A, I t ra:see a $,m et;year n, and values. These should be considered in plans for
<br /> rirrkfi enhancement of wildlife habitat or land use conversion,
<br /> i�l°l�attol`j syst£drt�s areP �lit�Yt)e���ful.�pp�tc�t�brts ofd This unit is suited to irrigated raw, field, orchard, and
<br /> rrtgtioteiaiertl@EEfditrithe°rl7€d@iiQf` ==IF vineyard crops. The main limitation is the high water
<br /> �1
<br /> f
<br />
|