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• story shrub vegetation. The aerial canopy covea~~~cof sacs ;<
<br />shrub was measured to the nearest Scm along tkse~uteZ' sides
<br />of the central macroplot ,(two 25gs,1iss~~)~~ _- jr~• , , G. -
<br />.., ._
<br />Data on the herbaceous under~tory;species.,werg,'..secorded .
<br />.from 20cm...ksy. 50 cm "microplots"_ at ,l:meter- iist_erval~{~.,i;=
<br />along thQ Qutsicie;.,of the .central,m}croplots;;; .(The long:.
<br />axis of the micrnplot was perpendiclul-ar to tk}g: magrQp3.Q$, p
<br />13ne.) Percentage of canopy cg~e;,age is. estimated- - •
<br />independently for;each~ species:of herbs ,and €or.~s~r~sbs, .
<br />less than ~ 5cm in height* and ire. Lecor3ed, fp;r.,e~ch Spepie~s
<br />as one of six coverage. classes, ,S~.O~.Sy 5-~25~. 2,~_SO~,,S0:=:7,5;,-,-.<
<br />75-95- 95-100). Percentage of coverage is also recorded
<br />for._soi_1, litter,. rock,~moss-and :lichens, ,, .: ~,_.: ;y_
<br />;5:;.~• The midpoints; of these classes are;3ater. used iii, ~r
<br />calculating average percentage~of coverage of t~e:,t.axa a
<br />encountered. .The coverage~9f each spec~.es i~_~lisyt~ed_,~n ~:
<br />the tables according~to the nearest percent. A plus sign
<br />~ (+) indicates a species with .l~s~. .than 11~ 99 percerxt;
<br />coverage. -,Species: occurring in~'the quadrat or. the +-,mF
<br />immediate area gf:.Fthercommunity beViasg sampl2~ are 2ndica~d
<br />by~an asterislc-;(*)~.,:,Frequency..is~~et~rminedFby divid~pg-,~;
<br />„the number of microplots ip whicYrja; _s~ecies,occurs by.,used
<br />`total number of microplots in which a-species occurs;,-by~~:.
<br />• the total number of microplots and then multiplying by
<br />100 to; express.as a,percont.. ;Sim-}~larly, ~on5~steaLcy is
<br />determined by dividiasg_,the; number; of stanyis~ sampled a~ c
<br />;- then multiplying:; by, lOQ~ to express as a percent. _,,;
<br />A_ ~ quadrat method was; also,. used ` to samp~_e: thg, oa]cs,,
<br />- which ,are inventoried ~ a:s a;, tree. ,; The oaks stands were~r; ~;
<br />sampled using a quadrat pf- 5x25-meters.:=. T,1}e„d..;ameter•~;+
<br />-_ size classes are the° same- as t~sose .used= fpr,; the- as~en,e: .,.
<br />Reproduction Loaks <,lm) is recorde~•; •from_a,-l-meter
<br />strip along one edge of the 25-meter quadrat. Tree heights
<br />are estimated to the nearest one-half meter. Shrub cover,
<br />- including the oaks, .is recorded from the 25-meter--side of
<br />the quadrat by the above-described method*-*:= Herbaceous~i~
<br />understory data are recorded from="microplots" at 1=meter:
<br />-- intervals along the 25-meter side of the quadrai;~as described
<br />above. _ i ~-, a: r.~...:
<br />~_ :All other shrub communities are -aslaly2ed by `ttie -line
<br />intercept method. A 25-meter •tape measure was loca~2d -i~~:
<br />-* ~daho.~sia repens, a creeping
<br />inventoried as -an ,herb. ~.:-
<br />** Due to variation in shrub
<br />,__ often exceeds 100 percent..
<br />L -3-
<br />shs;ulY of 4e~: growth was: °- ~ '
<br />ieights, local canopy cover
<br />_ ~y-
<br />
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