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• Aspen stand.A-1 appears to be much more vigorous <br />tban either stands A-2 or A-3. This. is ]deflected in the <br />growth character, taller trees, a greater percentage of trees <br />in the larger dbh size .classes and 'less a'istort.ion in~thet•.- <br />main 3nody of trees. This stand may :have. more available <br />moisture due to its location in r1 d;aw.. The other two <br />stands are located in the lee or tfie hill and would ;tenfl <br />to have less 5I30W accumulation sn ,wintex and a greater and <br />_ more rapid runoff of pxeeipitat~on in summQr. Soil~v3epths• <br />may also be greater in the ,draw. <br />4'xee densities range #~om ~F.9 Rio 155 p~ gna~rat ;(~75m~~I <br />~~ but average 112 per quadrat. however, an ~vera.ge,gf 1~~'': <br />~ percent of the standing treQS a~ dgad. Sand numbers A-1 <br />and A-2 are. less dense than staztd number A-3. Distr._~ntiop <br />r oP trees .in 3iam~er sits q~sses ((;and gex'haps the 'age <br />distri3~•otzps'•) ~ r3ifferent ~flx ~a~eh stan8. Stand ~•1 !hag <br />a greater percentage of tress in the upper dbh ~~ize~cislsses~ <br />perhaps reelecting the morQ favp~le moisture confl2+tions-;.: <br />All stands have the highest pe tentage of gees ~ e 0=0.5 <br />dbh size class. <br />- Reproduction j1s extremely variable, ranging frs~m ~ <br />to 32 saplings per :BtanB. 6tatsg3 ~-~ has only a five Saplings <br /><lm 9ieight. However, these are X50 diving trees in ti}~.6-;5•~ <br />• dbh size class. Stand A-2 has ~2 dings-<lm; ;but mnlp 15 <br />trees in the 0-.5 dbb size class. ~hsrs, all s•t~.nds have hic~b <br />reproductioa~ rates Compared to ortiher areas .of Co¢orado <br />(Johnson, 1173) ; hpw~rer, it appaa¢~s that reproduction anc~ <br />~- the survival mf sap~.sngs is sel~eted to avan~ta3~3,e :mv~sture. <br />wD~iach varies prom season tm •sea;spn. . . <br />;- Sbsiu'b ~COn~er is relatively dense in the aspen uadEr~ <br />'i__ story. S cover averages 54 per~mt apd ranges ~rQm 44 <br />to 60pezcent. Five •shru~bs occur jJp thQ ;vnderstory <br />ofr the a~sQea'stands: sex~vicebera~y dose, and snowbepry <br />are ~characbexistic to all aspen ~,t,~m~s, ether spru~j's <br />- present in 4:lae community ~n~ufle~ ~clnokechcrry, and <br />gooseberry. . <br />~- Serviceb~erry anfl snaw3aerry arQ (the dgmimm~t shrub§~ <br />as •expresse8 Jin .perc~At cove=. However, the ci•®minarice <br />of these two shrubs var¢,ss in ea,Ch stand, In stand A-l <br />~.._ these shrubs care ~-dom~nts, ~ervice~ien.~y .represents <br />89 ~sercent m~ the shrub `cwex in ~'tand A-2:; ` byt snolalaer~ <br />represents 9'A percent of tie shrub cover in stan@ A-3. <br />Snowbersy has a preferencQ for par-Cia'lly shaded <br />areas and Coarse ~subs~tsa+bes, whj,le ,Serviceberr~ grow$ <br />best in deep loamy sodl'8 and :fin, toleratg' higher isyF <br />tensities of ligAt,. ;Z'huS~ the densg canopy of star}d J1~'~ <br />-~a~ <br />