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n <br />U <br />1'vhlr 22. \hruh wn ival M trcatmen 1. <br />lpceics '% tiun ival for <br />No-'1'o soil treatment °io Sun ical for <br />'I'o wil'1'nutmenl <br /> <br />c iantl,<•I's Oak I1)7" ~, 73'!;, <br />~CI1 ;~ i 149T\ 7 i'~n ~x°'o <br />~~rraw• x5%~ 6%% <br />Shrub Vigor. 1 {eight was used a, the primary indicator of vigor within the study. A total of live <br />individuals of each species were randomly choxn along each trmxct line and nxasured in <br />eentinxters. Shrubs in general demonstrated little ifuny growth Itth~ccn the 1996 attd 1997 <br />s;tmpling period. In contrast to last year. all shrub spev ies were slightly taller in height in the rxi- <br />topsoil lrcatntent than the topsail <br />lreatnxnt. Since standard Figure 5 : Shrub Height by Treatment <br />deviatiutts overlapped. these to <br />ditlcrcnccs arc not significant. On t2 <br />the topsail Ireaunrnt. ('hukechern t0 - <br />atxi Gamttcl's Oak declined in o <br />~ g 1 <br />height while Servieelxm g e <br />ataintauted a suttilar hcicht hetwcen ~ a <br />~.unpling periods. On the nu- <br />• ~~glsuil trcautunt, all species 2 ' <br />rctintained similar or shehth taller U ' <br />Ix fights than vvhcn originally Topsoil Treatment tJO Topsoil Treatment <br />nte.tcured. Slvub height is likch - Chokedterry ~ ~ Ctwkedterry 97 <br />aftcctcd by hrow:ce d:unagc and x~il -- <br />nutrient levels. this phenomenon ~ G Oak98 ~ G Oak97 <br />of pcxtt ghtwlh is cxhihited by ~ ~" ~ ~ ~n^~' 97 <br />several plots at Seneca !vlitn and <br />does nett appear curreluted with survival. <br />.4nothe:r variable which cmt be utilized to assess vigor is rooting depth. Shntbs were randomly <br />santplcd and rooting depth as-usscd in 1'~5 planting units ou[sidc of the study area. r\II samples <br />had excellent establishment of Mtth tap and lateral rooting structures. One Cltukeciterry in <br />particular, had a lateral root which spread 70 ccntinxtcrs Irctm the base of the plant.taproots in <br />general exa~eded 3~ centimeters. Assuming that these resuhs can tx extrapolated to the study <br />site, routing depth is not anticipated to be a problem with plant cstablishmcnt. Rooting depths <br />from within the study arw will be sampled during the linal data colle~etion in 1998. <br />• <br />