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<br />,. <br /> <br />J:i <br />:;r <br />'.i." <br />,,)," <br />Ii. <br />/) <br />/. " <br />/J <br />,/ /'. <br />;P <br /> <br />IlU).UvaUe.n Muld not !>$ c"nt:l.1<jli.ed without drai.nage as the ,d$.; of the water table <br /> <br />lies $.t <:It' elesa t() the l\1Urfa'N'. present losses by eva.poration are n~t far different <br /> <br />1'1'(111.. th~ p13Mticial US" of water 1'Ol' irri[;'ltiQI1. on a drained and cropped fi@ld. With <br /> <br />a wat~t' table three feet Qr mQl'e below th6 $urfaoe, 60il evaporation lQSSGS are <br />fl&fl;l.:lgiblec and the ree1amatiol!l of ..uch 'lands by dt'ainags and it'rigation will intt'o- <br />dMEl $J!.tellsive tlSlI of water by plant.. in their growth procssaes and by increased <br /> <br />eV1l.11IJration from the sllJ.lS. FUlll llleasured losses in other localities it has bilen <br /> <br />Ils'Umatlild thltt 0\ well drabed and eultivated field in San Luis valley will u,-,,,, up <br />18 inllhe~ of' water li\llllua;l.ly. :tt ill prQbable that this amount nine as high as 24 <br />. tlilolin 011. sOllie of the eu1;Uvahd l.anl'ls with high Wl>.ter tabla. 0111 the lIo-call<itd <br /> <br />lile$p$G land2l. the 1artal. llGllllU!AptiV"e use of wate!' probably varies frOll! a lltinillOAlll of <br />l!U itlche>/iI to a mo.dl!lUlll of 24 :l.l'lchs$ $nnl!.a1l.y, exeEll't 'lherl'! Op<;IU water eJtistll thn;~ <br /> <br />ilut the year. The available data inclicate that th., net recault of extensive Nela~- <br /> <br />tio~w11l lllost.likely be a material loss so far as Rio Grande ie concerned. The <br />l'lilellvery of water", now 1!/I;\.Ilted 3.nto &..n Luis lake'! by the $ag>;ll;\ch<t river and other <br /> <br />D;ol"fi,l:ai?rl'l .J"eek$ 11'(>\1:1.<1 .3.n ~rt !!lUee"t the 108ses oocasioned by reolallJll't:l.en of landS <br /> <br /> <br />n!lrth1'lilet ot Alam(llla but the small aJi!ount of watet' that eal!l be flxpechd to 'be eb- <br /> <br /> <br />'li.!uJii\td:l'r<lilll thtj northern str'ilams is bestind1catad by too :l'act that such water is now <br /> <br /> <br />l\Ib~tl.J llJllil'lta:U1 but a veli'1$lll!111 wrtace of opsnwateX' in &..11. I..uis lakefl, which at <br /> <br /> <br />1,~a,dryll upco!l\pletel.y. '1'11$ \Hllil of watGt' is largely dependent on irrigation <br /> <br /> <br />~(Jdfh'rhe<p;lote<;1 elilt;tmatEld losae!l with cultivated .laooe <<re 11I:.$ed on the aasUlllp- <br /> <br /> <br />t:tOl'l ;til:!' thema:bl.tenanee of a 1(>'/1 watecr ta ole which willrequ~rade$p drainage and the <br /> <br /> <br />.bo:p"tien (.If the prasent p:ralltiC$ of aubi~:rigation. On the Whole, the elimination oi' <br /> <br />." , <br />. .. . <br />. '. . <br />s~Q~rI"igil:tCi()xlt with deep drninaget and the el:l.lnination 01' all avoidable waste of <br /> <br />. . . <br />. . <br />~a~er,it would appaaI" that irrigation may be materially extended in San Luis <br /> <br />/r'-- <br /> <br />"./i. <br />/ <br />, <br /> <br />'lfa;lJ.ey. without "'fiery gI"eat l:'(tdulltiC~ in the flow of the Rio G1"artde. put the Ool.1"ado- <br /> <br />i,~U M'$l.tj,6f1' liIbte lbe. <br />i i d 11M.B o1l1r4illn. <br /> <br />There is not ll1.\fficient data at h!!ll.d topemt C.lltil1Tll>>tion <br />