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<br />. <br /> <br />. <br /> <br />. <br /> <br />1,1I1lari~1.. (">;llllioll <br />(-W('1i !'l~~,-'tlt<ltt'lI\ <br />.rallllar...::5.2f11l1> <br />I. Till' ..\rbll~OI~ Kin'l' i.... the most hea\'il~' illfL'sll'd \\'ilh :"!<J.2Hn lolal ;H'l'l'S, has the hi~hl'....t a\'(-,r;1~I' dt'llsit.\- of !i7'Xl, :lnd <br />Ih,' ~rt,.,It'~t a\'('ra~t' \\idlh;11 1.:!2(1 lvl't. <br /> <br />2. Till' ('(llol'<ldo Riwr has fl,4fJS tolal acres of till11il1'isk infestalion ill apprc,xitlliltd~' :F'1{, il\'l'rage dellsily. BtTall~l' <br />lIll' ('olorado RiH'r is Illort' incised than the hmad Iloodpbin of the Arkansas River, its lalllari~k infl'slatiolls ;lI'l' <br />11;IITO\\'t'l', <lwr:lgillg :!Sfl fed ill \\'idlh. <br /> <br />:\. The I'urgaloil't: Ri\'(,l' h;l.'\ hoth hro:td llotJdplain.-; alld <l lIarrow CilllYOIl section. .-\.-; a IT....ult il h<ls si)!.llilit';mt areas of <br />illfesl;llioll (q,tl:H ant's) hut has a Irl\\ a\'('ragl' <knsily (If IH%. <br /> <br />4. 'I'll{' lllo....1 illfeslt'd ;In'j] is locall'd :II"Ol1lld .'olin :\Iartin Rl's{'.,:oil' (.s,S{q ;UTl'S) ;llHI is 7,000 fed wide al 0111' ptlinl. <br /> <br />,s. ('urn'lll \\'0111'1' lo..;s('.... arc hased 011 the al1lount of wain tamarisk is ('ulTl'nlly using undn lIhsl'l'n'd dellsitil's minus <br />Iht' w;lIel' Ihal \\'ollld hI' w'il'd hy nali\'{.' plants. Figure 1 rl'presents lhe difft'l'l'IJCl',... ill H'gl'tati\"l' COH'I' with alld <br />\\ illHlllll:l1llarisk and illllstra!t's hI)\\' lalllarisk will O(TUp~' :111 area Illllch gn'illn lh<lnlht' riparian Will' \\hidl <br />l,\pic;dl.\' \\OlIld support colttJll\\'Oods ill HI willow..... also phn':lI/Jphy1t's. Thl' significallt watvr I()~st's CJ('('1lI' as <br />LllIIilrisk o(Tupit's upland areas \\ithinlhe l1oodpl:tin that would llorlll:1l1y han' dryland Xt'ril' \'('gl'talioll such as <br />grasscs, sage, rahhit hrush, de. For much of Ih(' ,\rkansas Riwr, wilh ils hroad lloodplain, Ihis upland art'a is <br />typieallr Ho'X) of till' inh'sll'd area; when'as. Il1e Colorado Rin'r ge[ll'ral1~- has lIpl;llltl ;m'ilS rangin,e. hv"n'I'1I !lox. <br />and 7,S').". B;ISl'd on Ihl'se condilions, till' t'stimaks of current watL'1' ]OSSl'S ;lI)()\'{, <111(1 hl'~'Olld whatnali\'l' \'t'gdalioll <br />\\'otdd IISl' are: <br />;1. Colur;ldo J{i\'er = 7,:~9:! ;I(Tl,.ft'l'l ]leI' year. <br />h. Ark.;l1IS;lS J{iwr = ,S:~,R:~4 acre-fl'l'I pt'r ~'L'ar. <br />e. I'ur).\atoin' Riwr = fl,C)l) 1 acre-ft'l'! per year. <br /> <br />h. Fulurl' willl'r ItlsSVS aSstll1le;l11 infilling of Illl' t-'Xisling inkstatioll areas ,IIHI wil1likt'ly I)(Tllr on'r lilt' lIt'xl St'\ eral <br />dt'l'ddL's h<1set! on similar ('onditiollS ohst'l'Yt'd ill othl'r sl:lII'S (N!\1. LIT. and :\V). Fulure \\-alL'r IOS~l'S are l'stilll;lll'd <br />t(l he: <br />iI. Colorado Rin'l' = ltJ.70!) :1('J'I'-kL'l per year. <br />h. ,\l'bns,l.... Ri\'l'r = 9-4,119 :UTl'.fi.'l'l pCI' Yt'ar. <br />(' ]'urg;lloire J{i\'{'r = :~~,--I47 ;lcrL'-kl'l per year. <br /> <br />, <br />