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i <br />• <br />f <br />r <br /> <br /> <br />. } Wr62 (RN. 2) <br />© .. J <br />O _, O <br />AS~aaLa 1965 <br />CUNS`AYASION PLaI !UP and <br />~n 3"'i ; ".19I!.II7 FAP [~Llp $FtQ <br />WISrZ ~::1~~ CE'.IA'i 14.~2R OF AGGILUI]'LRE <br />Soil Conserntioq Service <br />Colorado <br />DLffercnL kW_s of so11, range Bites, or woodlaM Bites are esprated an <br />the rap by solid black lines. 4lthin eaeA area is an identitying symbol or <br />pane. Ths to13ov1ng syntols are ehosm oq your wp: <br />9n.bo1 or Site Nz-e ~ Cenerslit ~descrintiona <br />(Dstalled deseriptlone are avallabls Sn <br />7oor So31 Lonaerratlon Service oflSes.) <br />Name 1a.re'dt <br />Rangs larch arc Sdentitied and dexribed Sn trsns of range sites. Each vans <br />slie is the rcaalt of • partSeilar Boil-clL-ate ccabinatlon, and theratorc, <br />rill prodou certain plants tFat are adapted W :Lie rnvirornent. <br />Over the yeah, St tas been tourd Lwt each of tLeae sates vlu produq a <br />disLlnet plant ecrunl ty 1[ not sSq~ltleant],y SnSluenccd by overgraaing, fir. <br />or act hanical treatren:. ~:Sthin tkis plant ccr~nlty are various plaau vhl~ <br />react ditferently to Leavy orating p: ensures. =c-.e of tY.eae plants die out <br />a empratlveiy sLort tse. Ft.ese a:ro calla! ,!ec-~trPrs! other plants will <br />take over and increase, at least for a fairly s~r.g pertoi and ultlcately d1s- <br />appear also. ILesa are called Lrcrv ;e,.r S; plants uhlch are foreign to the <br />•Ste may cos Sn vtm the rarz;e ie detcnoraLed, and replace the original vy <br />~ Lat3on. TLese arc called irraaers. <br />The relative proportSOn of the total annual yield is detemSned for each <br />species of tLe plant co.=:.~nl tr, :Tin !e es;:ressed Ln percent of corpoaitl oq <br />by air dry 1~1 gbt, t'y relating this attul eonposition to the potential plar <br />Ccemunl ty, the range condition Ls daterrSned. <br />After detemining the preaen: range ecratition, the reaction ~t Lhs range Lo <br />various treatnmts can be prcd3ctsd fairly accurately. <br />1 <br />I <br /> <br />r. ~ .- <br />r ~. <br />i <br />i <br />t <br />