|
<br />001832
<br />
<br />Cr.hldle. w.. D., -19491.
<br />
<br />Examples,.of eonau,mp,ti'V'&,use,of.'ph reato-
<br />, '
<br />
<br />phyteso.btainedby measurements in lysimeter.a,o-r byestirnates
<br />
<br />using the13laney-Criddle formula, or other methocisr'f,reshown in
<br />
<br />the followIng tabula.tion:
<br />
<br />Table 1.-
<br />
<br />Con,Su~veUl<e of ,-Water by phreatophytes
<br />, ,., . -" . ,
<br />~~~slt~~)pllve '"f',~.fu to
<br />Type <If 'no.iO,,'a.ted"a'tft"i!.-
<br />Veiget~tion erlOGf '. Remarks
<br />(i:n:Ch€isl ( nehas)
<br />
<br />Location
<br />
<br />. Bonsall Basin, Calif Cottonwoods 47 Compiled b7'
<br /> di~to di ttt> 70 36 Blaney(195 l
<br /> Ma;y -Qat.
<br /> ,Santa AM.Easin " ..salt. gr,as S 31 48 ditto
<br /> ditto I Willows I 24 ditto
<br /> "
<br /> Rio Grande ,J,X I ditto 25 18 ditto
<br /> Pecos Valley Salt grass 70 24 Eli tto
<br /> Safford Valley,Ariz. "Baceharis May- Dec. 48 <io~i~led
<br /> "4"0
<br /> ,Elit~ ' T-ama,ris-k 4-8 4-S (19 fney
<br /> , dit to ditto 24 61 ditto
<br /> Ft.' Collins, Colo Sedge gr;a.,ss 54 18 ditto
<br />
<br />.
<br />
<br />Th-e"eon.-&ut'rtpliive 'u-&-e'of. -wate'1' by vege'taU~f-or-,the-{"-'8 month
<br />
<br />,summa,r ,period,.as,-sh<lwnbytable 1,app,roa.ches one--'-half to three-
<br />
<br />four-ths'~f, the' t,ota-lan,nua (free'waterev.aporat-ion, 'Applyitlg the s e
<br />
<br />"
<br />l<GB-S,.r-ateeito,-areasofphreatophytes growin~,atsprings, it can be seen
<br />
<br />tha-t whenever such an ,a r(la' approaches 0;'-4:-;0. S.acrein the no.rth and
<br />
<br />0-.2.-0.3 acre in,the..~outh,sufficient water is being wasted to supply
<br />
<br />i'
<br />the drinldng"F-Elc<tui-rem-en-t,s.f<),r,ahe rdof-,-l-OO <;attle during -the.isumme r
<br />
<br />grazing period, provided'the w;a.ter can be salvaged and properly
<br />
<br />11
<br />
<br />
|