DL{ELICA][ REPORTN945 Plbli3hed by th€ Dkector ol Fi3heri€3and \l/llcllile. Perth. under lhe aulhorily ol rhe Hon. Minister tor Fisheri* dnd Witdtite The ShortTerm Effects of BrushHarvesting on the KwonganVegetation at Eneabba" WesternAustralia BY E. A. GRIFFIN AND A. J. M. HOPKINS 1981 '9909 'V { 'oo-rouueM 'o'd 'e.r1ueJ T9 xog qc.reesau alTTpTT!4 ueTTe.rlsnv urelseMz '6T09'vlrt'q6noroq.recs'4aa.r1sAarpug L?- T8 6T 'w'.c 'v pue 'v's zsNrxdoll rNr.il.ilru9 trs vrrvuilsnv taE&ssu'vggEgt{g TV NOI,IVTS9flA X\I9NOIDI ffi,r tto 9f,rrseautr ssnus Jo s,rJtrJsfl r{uE,r &uoEs trEf, 'oN 9t ,f,uodsu H,lusaI ace.rta,tr,apreTapv I0T afTTpTTl4 pue seT.raqsT,{ Jo ?uaurfredeq T ,XICNTIdiIV 6Z sgeNsus,{su IIIA 6Z s,rNsr{secsTl,loNxJV IIA az sNor$vqNsnwoJsuqNv sNorsnaSNoc IA zz NOrSSnCSrq A oz aurl6ag 6uT11nc eq,I 'a tr. sarcedg TenpTATpuI uo slceJJg .V ZI tr11unuuro3 uo slca;Jg sfransgu AI TT SqOHfE}'l III OT SUJIS ICNIS TI 6 NOITCOqOU,INT r ,rcYtl'rsgv a 6ed S.INS.INOC I FIG URES Page 1. Brush Harvesting Study Sites: Location Map. I TABLES 1. Details of Stualy Sites. 1t Numbers of species recorded. in each quadrat and at each study site. 13 J. Average number of species per cover-abunclance cl-ass per quaalrat, cut versus uncut treatments, together with average percent bare ground recordings for each study site. 13 List of species recordecl only in quadrats of one l. ra^ f m6n + +r'h6 If, Species and. numbers of pfants recordecl dead in the 13 quadrats of each treatment t!,pe. Ib 6. tist of species with percent relative frequency (t RF) outside the range 76-124*. I8 1 List of species with cover-abundance values reduced by harvesting. l9 8. Seedlings recorded in quadrats of each treatment type at each stucly site. 2T q Observations of fruit bearing habits and regeneration strategies of bradysporous species in the study area. z5 APPENDIX 1 - TABLES 1. Species and numbers of individuals recordeCl in sample quadrats in the Al-lied Eneabba ttd. 78D topsoil, mulch and seeding trial in October 1979. JO z. Numbers of species of each seed storage mode recorded for each of the two rehabilitation treatments . 5t ve '6u11no:dse: q6no:q1 ITuTeur uo11e:aua6er ,6uTlsearer{ TeTlue1sqns 6uTlaoqs relJe sr{fuour tT ,6L6f treW ur eerp € paTfTv u1 uo11ela6el lsal.req_lsod ?e 's1ue6:aure Teuorseoco qATr uc 09 lnoqe g:o 1q61eq e6e:ane up qlTl^ uoTlEle6e^ qleaq-pesoTc ltol 1ec1d^1 ar{? FuTraoqs s peTTTv 1r uoTlen4Ts lse^req-a.rd gt . pelleltrqsnJq aq 01 eo.re up o? uo re?sa^JeH e6exo.{ eql uoJJ pappoTrm 6u1aq 1e1.:e1eu pelsea.rpg '6u1u;rtI LL :o1:d z(lelraTpounlT peAoure: 11osdo1 or5l (c ,d1:1s_oq , pelselrEq qsnrq e {q uoTle?e6aa ry4e5q peqrn1sTprm eq? 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Seedling regeneration in a brushmatted area of the Aflied Eneabba 78D topsoil, mulch and seeding trial. l 'papuewuoJeraJe seJpn?s raq+JnJ auosi 'uoTle?TTFqeqar JOJ VsnJq eql Jo enTel eq+ 01 uolfnqlrluoJ luelroqwT ue eJo?s paas sJtrI 'nof se ecua1slqap petreTapqT7n se)pul 'sprerlJe?Je saJcads Jo paas Jo erols eql uoos peAowal eq ol iJ 11osdo1 uaqrt t{1uo arqerfsap llqeqotd sJ aj11ci.rd igqS' :6uylqnc no7 lq pesBarruJ se,r 6uJSsaa-req eqt 'uoyyetaualar roJ pateadde Jo lJedwT ?seq'e?fns uwn+ny lTtee - Jeu,u/nseleT u! s?saiJeH slq? uI pepnTJU! eraa paes woJJ pelereue1et ttluo qcJr;,r salcads esor/l 'pe!Jlluap! sea 6u!11n3 01 eA!4lsues ?souJeq o? paJeplsuoJ saJcads a?Jns 'sleJpenD pe?se^Jeqrsuros 'u! 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II STT'DY SITES - At the time of the field work for this study (26.10.78 2.LL.78) three areas ahead of Lhe mining paths totalling ca. 7 ha hail been harvested for brush. AIl three areas w6re studiecl. Detail-s of the harvesting regimes are shown in Table 1; locations of stuily sites are shown in Figure l. AfI three study sites were located within areas already described in clelail by Lamont (1976') , Hnatiuk c tiopkins (in press ) and Hopkins & Hnatiuk (1981 )- The land surface iloper gently wittr a westerly aspect from lateritic hills easl of the mining tenements to aeolean dunes adjacent to the railway 1ine. The soils were predominantly grey sanils overlying mottled, deep, yellow sandy-clay anal -.with tateritic gravel variously disposed throughout the profile.