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i <br /> /�e . �, ,.. . <br /> NORTHWESTARBORVITAE•Fot�srsoRruMFxrwi.nucNasncsErtv�cFs <br /> 15J0:1 NE 162nd • WoodinMlM,W�Wnpton 9lOT! • �l06►10.'�2YS3 <br /> • Tl2FFE PI�ATICN G�IDFI.II�S . <br /> � • � � 1 <br /> G@�tAL SPDCIFICATIClS � � <br /> �I <br /> 1) id►ere lots are snall, wi`h setbacks of 30 feet �.' less, leave a cluster of <br /> trees statding together: do rnt leave irrlividual fr+ee.�tanding trees. 72�e <br /> cluster beoa�s a oost-fsee coeLstsuctia� bazrier pmtecting t2�e zoot systems <br /> within the c1tmQ. I <br /> 2) In multiple-family develc�pments, where m�ch open space is used for parking II <br /> lots, do not leave a few urlividual tiees in naaw aQen spao�s beside sudi , <br /> strvctures. Instsad► -3ffive c1�a�Qs of tcees between asd behind sttucttaes ar ' <br /> �ahetever there raill be a lazyer area of ta�distaubed soil. j <br /> 3) FIItTII,IZATICN i PRUNING: All trees to be saved sha�ld be fertilized with <br /> a high nitrogen fertilizes arr] pna�ed to zeioove dead wood. 1lpply sutface <br /> applicatim of a granular fertilizer in Deoanber oz Jarnsa=y so that it Will <br /> work into the soil with vinter rains. ]4000zdiryg to 1�11► Standards. 3 lbe o� <br /> nit:+ogen per 1000 .sq. ft. of area tader �e �arxh spx+end et�wld be applied. <br /> The applicatirn can be made in eith� �tric circles or in linanr strips <br /> startisg 2 or 3 feet fran the tnmk wt to 5-10 feet beya�d the dripline of • <br /> the tree. Chly fertlilzer sources that crntain nitx�ogpn alane should be • <br /> surfaee applied. �e purpose of fertilizatian pziar to oa�sttuctian is to I <br /> increase vigor prior to disturbanoe. The pnmiig a�t of dead bra�hes and <br /> branch stvbs also cantributess ta the health.of the tree. If a si�ificant <br /> amamt of root material is to be removad, a similiar ratio of shoots should be <br /> pituied out of the Cat�y. � <br /> 4) ke.�PFN1'ICN ZQvt-S: 017 �+oodland sit.es appmF¢38te fG� n�*+*aini.,� y=y�� pg <br /> exierjnq cxees, z«ies shwla be aeltneabea ana flaygea. Iaetemiai �ooe. <br /> flagqing is oftes� sc3�eduled to follow xnad oenterline clearing in aader to <br /> facilitate field locatirn of z+��e.xe poin�: A clear system o� flagginq to <br /> desiqnate retession zo�ne edges a� protectim of i.ndividual specime�s ie <br /> essential to oontxnl bulldozing and felli:g aperatians. <br /> 1b awid soi 1 con�aaction and x�oot dartage, no heavy equipnent bhwld be allowad . <br /> within these flagged zorrs. <br /> aaequate supeivision auring oleartng ts neo�ssary aa� all sites as equipment <br /> opPsators are not familiar wirh rhe a�bjectives of e�vironmenral protect3«►. <br /> Soil conQactian, exoPssive cvt or fill araad iniividual trees or alanq edqes, <br /> abrasioai of tnuilcs. hYanch breakage, a� di�_;an of wates s�ply are all <br /> factors to be awided-3�f tree survival is to be �++aY;m;�e8. <br /> . . � 4iIR.Dr4,.S.��' �ti:� • <br /> ar�6&'�n^.";i"i t f � s.�. <br /> . .. .... .. . .— -. . . . . . . . . I <br />