Recommended community tree ordinance tree conservation standards

Table of Contents
RECOMMENDED COMMUNITY TREE ORDINANCE TREE CONSERVATION STANDARDS
Section 1: Tree Conservation & Protection during the Land Development Process ....................................................1 A. Planning.............................................................................................................................................................1 B. Pre-land Disturbance Site Preparation........................................................................................................1 C. Protection of Critical Root Zones and Root Plates .....................................................................................2 D. Tree Protection During Construction............................................................................................................3 E. Tree Protection Fencing ................................................................................................................................. 4 F. Follow-up Maintenance .................................................................................................................................8
Section 2: Design Standards for Trees ..................................................................................................................................9 A. Street Trees ...................................................................................................................................................... 9 B. Parking Lot Trees ........................................................................................................................................... 12 C. Buffers ............................................................................................................................................................. 16
Section 3: Tree Selection and Planting Standards ........................................................................................................... 17 A. Standards for Selecting Quality Trees ....................................................................................................... 17 B. Planting Standards for Trees ....................................................................................................................... 17 C. Undesirable Tree Species List..................................................................................................................... 20
Section 4: Tree Removal......................................................................................................................................................... 21
Section 5: Recommendations for Utility Corridors............................................................................................................ 22
Section 6: Tree Care and Maintenance Practices ............................................................................................................ 24 A. Tree Pruning ................................................................................................................................................... 24 B. Tree Mulch...................................................................................................................................................... 25 C. Soil Environment ............................................................................................................................................ 26 D. Fertilization...................................................................................................................................................... 27 E. Irrigation .......................................................................................................................................................... 28 F. Pest Management.......................................................................................................................................... 29
Section 7: Suggested Tree Selection List ........................................................................................................................... 30
$HKOO=NUKB0AHA?PA@1ANIEJKHKCEAO=J@!AlJEPEKJOBKN KIIQJEPU1NAA,N@EJ=J?AO.............................................. 32

Section 1: Tree Conservation and Protection during the Land Development Process
A. Planning
(1) "ILHKUPDAOANRE?AOKBMQ=HElA@LNKBAOOEKJ=HOOQ?D=O=?ANPElA@=N>KNEOPKNLNKBAOOEKJ=HQN>=JBKNAOPAN PK =OOEOPEJPDALH=JJEJC EILHAIAJP=PEKJ=J@BKHHKSQL EJ?HQ@EJCI=EJPAJ=J?A
(2) "R=HQ=PA PDA ?KJOANR=PEKJ LKPAJPE=H KB =HH PNAAO KJ OEPA >=OA@ KJ PDAEN OLA?EAO =CA DA=HPD OPNQ?PQN=H ?KJ@EPEKJ=J@HK?=PEKJ EJNAH=PEKJPKOEPAIK@El?=PEKJO=J@LNKLKOA@OPNQ?PQNAO=J@QPEHEPEAO
(3) !E=CN=IPDA=LLNKTEI=PAHK?=PEKJKBPDAPNAAO?NEPE?=HNKKPVKJAO >=OA@KJBAAPKBN=@EQOBKNARANUEJ?D @>D
KNCNA=PAN >=OA@KJLNKBAOOEKJ=HFQ@CIAJP
(4) !E=CN=IPDA=LLNKTEI=PAHK?=PEKJKBPDAPNAAONKKPLH=PA >=OA@KJBAAPKBN=@EQOBKNARANUEJ?D@>D
KN CNA=PAN >=OA@KJLNKBAOOEKJ=HFQ@CIAJP
(5) "R=HQ=PAPNAAOKJ=@F=?AJPLNKLANPEAOBKN=BQHHN=JCAKBLKPAJPE=HEIL=?PO =J@JACKPE=PAIEPEC=PEJC=?PEKJO SEPDPDA=@F=?AJPLNKLANPUKSJANO
(6) *K@EBUPDAOEPALH=JOKNLH=JPKNAIKRAPNAAOPD=P?=JJKP>ALNKPA?PA@$AJAN=HHU PNAAOPD=POQBBANLAN?AJPKN CNA=PAN?NEPE?=HNKKPVKJAHKOO@KJKPHERAOQOP=EJ=>HUEJPDAH=J@O?=LA3=NE=>HAOEJ?HQ@APDAJ=PQNAKB@EOPQN>=J?A PDALKPAJPE=HPKIEPEC=PA@=I=CA PDAOLA?EAOKBPNAA EPO?KJ@EPEKJ=J@RECKN KN?D=JCAEJOKEHDU@NKHKCU
(7) The protection of clumps or groupings of trees is more effective than the protection of individual trees.
(8) Plan for how the full range of site activities could potentially impact the trees. Identify staging areas for L=NGEJC I=PANE=HOPKN=CA ?KJOPNQ?PEKJ@A>NEO =J@?KJ?NAPAS=ODKQP
B. Pre-land disturbance site preparation
(1) KJ@Q?PLNA?KJOPNQ?PEKJPNAAI=EJPAJ=J?A EJ?HQ@EJCPDA=LLHE?=PEKJKBIQH?DBKQNPKOETEJ?DAO
SEPDEJPDA ?NEPE?=HNKKPVKJA BANPEHEV=PEKJ =J@LNQJEJCPKNAIKRAOPNQ?PQN=H@ABA?PO @A=@SKK@ KNPKEILNKRA?HA=N=J?A for equipment and structures. Educate all workers on site about tree protection techniques and requirements.
(2) "OP=>HEOD=PNAALNKPA?PEKJVKJAAMQ=HPKPDAPNAAO?NEPE?=HNKKPVKJAO KN=O=IEJEIQI=HKJCPDAHEIEPOKB disturbance (See Figure 1).
(3) Install all protective barriers prior to any land disturbance.
(4) Acceptable tree fencing includes the following (See Figure 2, 3 & 4):
a. IEJEIQIBKQNBKKP
>=NNEAN ?KJOPNQ?PA@EJ=LKOP=J@N=EH?KJlCQN=PEKJEJ?DTEJ?DLKOP=J@ a double 1-inch x 4-inch rail are recommended.
b. Four-foot orange polyethylene laminar safety fencing.
c. Six-foot chain link fencing. A six-foot chain link fence should be required for the protection of all specimen trees and boundary trees.
Any deviation from the three acceptable tree fencing methods listed above should be authorized by the ordinance administrator.
All tree protection fences should be accompanied by "Tree Save Area: Do Not Enter" signage. These signs should be in both English and Spanish.
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(5) KJOPNQ?PEKJ KBl?AO RADE?QH=N L=NGEJC SKNGAN >NA=G OEPAO LKNP=>HA PKEHAPO =J@ I=PANE=H OPKN=CA =J@ debris areas are to be placed outside of the tree protection zones.
(6) Underground and overhead utility lines that would require trenching or severe pruning of protected trees should be rerouted. Tunneling or boring can be used to install underground utilities within a tree protection zone. Boring should be at least 24 inches beneath the surface. (See Figure 5).
(7) 4DANAPNAANKKPOODKQH@>A?QP I=GAKJHUOD=NL ?HA=J?QPOPKLNKIKPANKKPNACAJAN=PEKJ (8) 4DAJ?HA=NEJC=J@CN=@EJCEOLH=JJA@EJ?HKOALNKTEIEPUPK=PNAALNKPA?PEKJVKJA PDAHEIEPKB@EOPQN>=J?A
ODKQH@>A@AlJA@>U=?HA=JPNAJ?D?QPPK=@ALPDKBEJ?DAO PKLNARAJPPDAODNA@@EJC=J@PA=NEJCKB protected roots. (9) Grade change in the critical root zones of trees will destroy roots. Retaining walls should be used to minimize the impact of grade changes near or within the critical root zones of protected trees. (See Figures 6 & 7) (10) Monitor tree health and compliance with tree protection requirements regularly during construction.
C. Protection of Critical Root Zones and Root Plates (1) Critical Root Zone (CRZ) is the minimum area beneath a tree which should be left undisturbed in order to LNAOANRA=OQBl?EAJPNKKPI=OOPKCERA=PNAA=NA=OKJ=>HA?D=J?AKBOQNRER=HSee Figure 1). The CRZ will typically be represented by a concentric circle centering on the tree's trunk with a radius equal in feet to 1.3 times the number of inches of the trunk diameter measured 4.5 feet above the ground (dbh-diameter breast height). Example: The CRZ radius of a 20-inch diameter tree is 26 feet. This is not to be confused with the Total Root Zone area. (2) Root Plate is the area of the root zone comprised of pedestal roots and the zone of rapid taper and roots QJ@AN ?KILNAOOEKJ SEPD = @ENA?PEKJ=H N=@EQO >=OA@ QLKJ PDA PNAA PNQJG @E=IAPAN =P BAAP =>KRA PDA ground (dbh) (See Figure 1). The root plate will typically be represented by a concentric circle centering on the tree's trunk with a radius equal in feet to one-half times the number of inches of the trunk diameter. Catastrophic failure of the tree could result if roots in this area are damaged of destroyed. Example: The root plate radius of a 20-inch diameter tree is expected to be 10 feet.
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Figure 1: Root Zone Detail
D. Tree Protection During Construction No person in the construction of any structure(s) or improvement(s) or any activity should encroach or place OKHRAJPO I=PANE=H ?KJOPNQ?PEKJI=?DEJANUKNPAILKN=NUOKEH@ALKOEPOSEPDEJOETBAAPKBPDA=NA=KQPOE@APDA ?NEPE?=HNKKPVKJA =O@AlJA@DANAEJ KB=JUOLA?EIAJPNAAKN=JUPNAASEPDEJ=PNAALNKPA?PEKJVKJA (1) ABKNA@ARAHKLIAJP H=J@?HA=NEJC lHHEJCKN=JUH=J@=HPAN=PEKJ EJ?HQ@EJCNAIKR=HKBEILANREKQOOQNB=?AO KNOPNQ?PQNAO PDA@ARAHKLANODKQH@ANA?POQEP=>HALNKPA?PERA>=NNEANO=ONAMQENA@ EJ?HQ@EJCPNAABAJ?AO PNAALNKPA?PEKJOECJO=J@ANKOEKJ>=NNEANO QJPEHOEPAH=J@O?=LEJCEO?KILHAPA@ (2) &J=@@EPEKJPKBAJ?EJC SDANA=?PERAPNAALNKPA?PEKJEONAMQENA@ A=?DPNAAPK>AO=RA@ODKQH@>AI=NGA@=P PDA@E=IAPAN>NA=OPDAECDP@>D
SEPDOQNRAUKNO=CCEJCNE>>KJSEPD=LANI=JAJPI=NGANEJ@E?=PEJCPDA OEVA=J@OLA?EAOKBPNAA KNJQI>ANKBPDAPNAASDE?DEO?NKOONABANAJ?A@>UPNAAOEVA=J@OLA?EAOKJ= ?D=NPKJPDAPNAAOQNRAULH=J1DA=CCEJCNE>>KJODKQH@AJ?KIL=OOPDAPNAA (3) Community inspection of tree protection barriers should be required prior to any land disturbance or development. (4) HH PNAA LNKPA?PEKJ @ARE?AO ODKQH@ NAI=EJ EJ BQJ?PEKJEJC ?KJ@EPEKJ QJPEH PDA ?ANPEl?=PA KB K??QL=J?U EO issued. (5) QPDKNEV=PEKJPKNAIKRAPDALNKPA?PERA@ARE?AOODKQH@>AEJSNEPEJCKN>UPDAEOOQ=J?AKB=lJ=H?ANPEl?=PA of occupancy.
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E. Tree Protection Fencing (1) *=PANE=HOBKN=?PERAPNAALNKPA?PEKJ BKNPNAAOPK>A?KJOANRA@KJPDAOEPA =J@=HH>KQJ@=NUPNAAO ODKQH@ ?KJOEOPKB?D=EJHEJG KN=JCAH=IEJ=PA@LH=OPE? SKK@AJLKOP=J@N=EHBAJ?EJCKNKPDANAMQER=HAJPNAOPN=EJEJC material. (2) @@EPEKJ=HHU =HHOLA?EIAJPNAAOPK>A?KJOANRA@KJOEPA=J@NA?AEREJCI=TEIQI LNKPA?PEKJODKQH@>A provided the following tree protection measures during construction (See Figures 2, 3 & 4): a. A six-foot chain link fence around the critical root zone with the support posts for the fencing spaced OETBAAPKJ?AJPAN+KC=PAO @KKNOKNKLAJEJCOODKQH@>ALANIEPPA@=OL=NPKBPDABAJ?EJCKQJ@=NU trees should be protected by three foot high polyethylene orange fencing. b. Four to six inches of organic mulch over the critical root zone within the tree protection zone. The mulch is to be spread by hand within the critical root zone. No machinery is allowed within the critical root zone of the specimen tree. c. An automatic above ground irrigation system may be required. There should be no underground irrigation system installed within the tree protection zone. d. 0ECJ=CAODKQH@>ALH=?A@ARANUBAAPKJPDAPNAALNKPA?PEKJBAJ?EJCPD=PNA=@O 1NAA0=RANA=!K Not Enter" in both English and Spanish.
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Figure 2: Tree Protection Fencing for Non-Specimen Trees

*Specimen tree protection may require orange polyethylene fence be replaced with chain link.

Figure 3: Tree Protection Fencing for a Single Non-Specimen Tree

Side View

Bird's Eye View.

Tree Protection Fence placed at far edge of Critical Root Zone (CRZ) usually 1.5' radius X diameter of trunk at 4.5' above the ground (dbh).

Protection fence to be constructed of 4' orange vinyl or for specimen trees and/or in special circumstances 6' chain link

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Figure 4: Tree Protection Fencing for Multiple Non-Specimen Trees
Tree Protection Fence placed at far edge of Critical Root Zone (CRZ) of all trees in group
Figure 5: Tunneling or Boring within Tree Root Zones
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Figure 6: Acceptable Grade Fills within Root Zones Figure 7: Acceptable Grade Cuts within Tree Root Zones
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F. Follow-up Maintenance (1) KILHAPALKOP?KJOPNQ?PEKJPNAAI=EJPAJ=J?A EJ?HQ@EJCLNQJEJC IQH?DEJC BANPEHEV=PEKJ ENNEC=PEKJ =J@ soil aeration where necessary. (2) Apply at least one inch of water per week by deep watering in the absence of adequate rainfall. (3) #ANPEHEVAPNAAOSEPDLDKOLDKNQO LKP=OOEQI ?=H?EQI I=CJAOEQI =J@KPDANI=?NK=J@IE?NKJQPNEAJPO =OEJ@E?=PA@>U=OKEHPAOP >QPS=EP=PHA=OPKJAUA=NPK=LLHU=JUJEPNKCAJ#ANPEHEVAHECDPHUSEPDJEPNKCAJ after one year. &JOLA?PPNAAO=JJQ=HHUBKN=PHA=OPPDNAAUA=NO=J@QLPKlRAUA=NO=BPAN?KJOPNQ?PEKJPKHKKGBKN?D=JCAOEJ ?KJ@EPEKJ=J@OECJOKBEJOA?POKN@EOA=OA =J@ARE@AJ?AKBCEN@HEJCNKKPO
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Section 2: Design Standards for Trees
A. Street Trees (1) Where streetscape trees are required as part of the streetscape on either side of the front lot line in =??KN@=J?ASEPDPDALNKREOEKJOKBPDEO=NPE?HA LH=?AIAJPODKQH@>A@KJAEJ=??KN@=J?ASEPDPDAPA?DJE?=H standards. Tree canopy cover should meet the following minimum requirements: a. Street trees that are planted in the right-of-way should be three feet behind the edge of the sidewalk. &B=OPNAAPPNAAEOPK>ALH=JPA@KJLNER=PALNKLANPU =H=J@O?=LAA=OAIAJPODKQH@>ALNKRE@A@ b. The installation of root barriers should be considered along sidewalks and curbs to prevent tree roots BNKIDA=REJC=J@>NA=GEJCL=RANO OE@AS=HGO ?QN>O =J@NK=@L=RAIAJPO c. Mature street trees should provide at least eight feet of clearance for pedestrians and bicyclists to avoid hazards created by low branches or trees too close to sidewalks and drives. d. Street trees should provide clearance for large vehicles such as buses and delivery trucks along treelined streets and drives. e. 0PNAAP PNAAO ODKQH@ JKP EILA@A O=BAPU =J@ ODKQH@ JKP >A =HHKSA@ EJ PN=Bl? REOEKJ ?HA=N=J?A VKJAO designated by the Director of Community Development. f. 0PNAAPPNAAOODKQH@>ALH=JPA@=IEJEIQIKBBAAPBNKI@NERAS=UO BAAPBNKINK=@EJPANOA?PEKJOBKN IEJKN?KHHA?PKNO BAAPBKNI=FKN?KHHA?PKNO =J@BAAP
BKN=NPANE=HNK=@OSee Figure 8). g. Street trees should be of horticulturally appropriate species for use in road frontage areas. Other species may be used as street trees with approval from the community development director (See Figure 9).
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Figure 8: Minimum Street Tree Spacing and Distances from Intersections Figure 9: Desirable Street Tree Characteristics
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Figure 10: Recommended street tree location for understory trees Figure 11: Recommended street tree location for overstory trees
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B. Parking Lot Trees

OQBl?EAJPJQI>ANKBPNAAOODKQH@>ALH=JPA@EJEJPANEKNLKNPEKJOKBL=NGEJCHKPOOKPD=PARANUL=NGEJC space is within 50 feet of the trunk of a tree to assure uniform distribution of trees throughout the parking area (See Figure 12).
a. All root zones should be a minimum of eight feet in width (measured from back-of-curb where curbing is installed or edge of pavement otherwise) with the use of wheelstops (30" minimum between the wheelstop and the curb) (See Figure 13).
b. All root zones should be a minimum of 12 feet in width (measured from back-of-curb where curbing is installed or edge of pavement otherwise) without the use of wheelstops (See Figure 14).
c. The root zone for overstory trees should be a minimum of 400 square feet of soil surface area (See Figure 15).
d. The root zone for understory trees should be a minimum of 200 square feet of soil surface area. e. -=NGEJCHKPEOH=J@O LAJEJOQH=O=J@IA@E=JOODKQH@D=RA?HA=J ?QHPER=PA@OKEHPK=PKP=H@ALPDKBPSK
=J@ KJAD=HB
BAAP +=PERA OQ>OKEH EO =??ALP=>HA EJ L=NGEJC HKP EOH=J@O LAJEJOQH=O =J@ IA@E=JO EB PDA AJPENA =NA= EO =IAJ@A@ SEPD =LLNKLNE=PA OKEH EILNKRAIAJPO =J@ PDKNKQCDHU PEHHA@ ,PDANSEOA loamy topsoil is required. f. Parking lot islands and medians should be covered with four inches (4") of organic mulch material replaced as needed. g. Parking lot islands should have an automatic irrigation system to ensure new tree survival and improve long term tree health. h. No fastigate (narrow crowned) varieties of trees are permissible in parking lots. i. Trees planted to meet parking lot and street yard requirements are more successful when exceeding two inches caliper. F Trees planted in parking lots should be ecologically compatible with the harsh growing environment.

)ECDP LKHAO =NA JKP LANIEPPA@ EJ L=NGEJC HKP EOH=J@O LAJEJOQH=O =J@ IA@E=JO QJHAOO = HECDPEJC LH=J EO submitted for review and approved.
(3) The use of at-grade planting areas in parking lots to promote stormwater runoff treatment and to OQLLHAIAJP ENNEC=PEKJ JAA@O EO AJ?KQN=CA@ LNKRE@A@ PD=P PDA PNAAO LH=JPA@ PDANA SEHH JKP >A =@RANOAHU EIL=?PA@=J@PD=PPDAOUOPAIEO@AOECJA@>U=HE?AJOA@ LNKBAOOEKJ=H?EREHAJCEJAAN

HH OPNAAP U=N@O SDANA NAMQENA@ ODKQH@ >A LH=JPA@ SEPD KJA PNAA BKN A=?D HEJA=N BAAP AT?HQOERA KB @NERAS=UO =??AOOS=UO=J@OECDP@EOP=J?APNE=JCHAO
(5) Where street yard trees will be planted within 16 feet of the edge-of-pavement of a public street with =@AOECJOLAA@KBILDKNDECDAN KNEJ=NA=O>AJA=PDKRANDA=@QPEHEPUHEJAO PDAQOAKB=JQJ@ANOPKNU species is recommended.
(6) Trees planted to meet the parking lot and street yard requirements should meet or exceed the minimum OP=J@=N@OOLA?ElA@EJAmerican Standards for Nursery Stock.

4DAJLH=JPEJCNKSOKBPNAAO PDA@ARAHKLANODKQH@LH=JP=J=OOKNPIAJPKBOLA?EAOPK=RKE@JKPE?A=>HA gaps when one dies or is damaged.

-=NGEJC HKP PNAAO ODKQH@ >A IK@AN=PAHU B=OP PK B=OPCNKSEJC PNAAO PK NA=HEVA PNAA >AJAlPO =O OKKJ =O possible.
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Parking lot planting island examples Figure 12: Parking Row Planting
Figure 13: Placement of Trees along Entrance Drives
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Figure 14: Planting Between Parked Cars Figure 15: Parking Lot Aisle Caps
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Table 1: Recommended Parking Lot Island Trees

Common Name Ginkgo
(male cultivars only) Golden Honey Locust
Golden Rain Tree Crapemyrtle
American Hophornbeam Persian Parrotia Chinese Pistache Sawtooth Oak Georgia Oak Scarlet Oak Overcup Oak
Lacebark Elm, Chinese Elm Trident Maple Shumard Oak
Japanese Zelkova

Latin Name
Ginkgo biloba Gleditsia triacanthos var. inermis
Koelreuteria paniculata Lagerstroemia species
Ostrya virginiana Parrotia persica Pistacia chinensis Quercus acutissima Quercus georgiana Quercus coccinea Quercus lyrata Ulmus parvifolia Acer buergeranum Quercus shumardi Zelkova serrata

Table 2: Trees Unsuitable for Parking Lot Islands

Common Name Red Maple
Norway Maple Silver Maple River Birch Hackberries
Beeches Sweetgum Southern Magnolia London Planetree American Sycamore
Pin Oak Willow Oak
Live Oak Weeping Willow American Elm

Latin Name Acer rubrum Acer platanoides Acer saccharinum Betula nigra Celtis species Fagus species /LTXLGDPEDUVW\UDFLXD 0DJQROLDJUDQGLRUD Platanus x acerifolia Platanus occidentalis Quercus palustris Quercus phellos Quercus virginiana Qalix babylonica Ulmus americana

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C. Buffers (1) Required undisturbed buffers should remain undisturbed and actively protected in perpetuity.
HH>QBBANLH=JPI=PANE=HO=NAOQ>FA?PPK=LLNKR=H (3) Successful buffers should be replanted to meet the following standards: = 1DAUODKQH@LNKRE@A=REOQ=H>=NNEAN1K=??KILHEODPDEOO?NAAJEJC PDALH=JPI=PANE=HOODKQH@>A= IEJEIQIKBlRABAAPEJDAECDP=PPEIAKBLH=JPEJC=J@=IK@AN=PAHUB=OPCNKSEJCARANCNAAJSEPDBQHH branching to the ground. b. Slower growing trees may be used if larger materials are planted.
!N=EJ=CASEPDEJKNPDNKQCD>QBBANOEOOQ>FA?PPK=LLNKR=H
"J?NK=?DIAJPEJPK>QBBANOBKNPDA?KJOPNQ?PEKJKBNAP=EJEJCS=HHO BKKPEJC KNS=HHOQLLKNPOEOJKPLANIEPPA@ QJHAOO KPDANSEOA OLA?ElA@ EJ PDA ?KJ@EPEKJO KB NAVKJEJC "J?NK=?DIAJPO EJPK >QBBANO ODKQH@ NAMQENA VKJEJCIK@El?=PEKJOKNR=NE=J?AO=O=LLHE?=>HA
HH>QBBANONAMQENA=BKKPEILNKRAIAJPOAP>=?GEJPANEKN=@F=?AJPPKPDA>QBBAN+KCN=@EJCEO=HHKSA@EJ this improvement setback unless permission is obtained.
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Section 3: Tree Selection and Planting Standards
A. Standards for Selecting Quality Trees
(1) Trees selected for planting should meet the minimum requirements as provided below.
(2) 1NAAO=J@H=J@O?=LALH=JPI=PANE=HODKQH@>ABNAABNKIEJFQNU LAOPO @EOA=OA KNJQPNEPEKJ=H@EOKN@ANO =J@ be of good vigor.
(3) The following criteria should be used for the determination of vigor:
a. Foliage should have a green or dark green color.
b. Vigorous trees will have large leaves and dense foliage when compared to trees of the same type with poor vigor.
? 0IKKPDKNODEJU>=NGKJPDAPNQJG=J@>N=J?DAOKB=UKQJCPNAAQOQ=HHUOECJElAOCKK@RECKN?KJRANOAHU NKQCD ?N=?GA@ =J@ @QHH >=NG ?KQH@ EJ@E?=PA LKKN RECKN !K JKP =??ALP PNAAO PD=P D=RA @=I=CA@ KN "skinned" bark from loading or transport or whose root balls have been "dropped' when off loaded.
(4) Trunk taper: the trunks of vigorous trees will have an increase in diameter with a decrease in height. Trees with reverse tapers or no taper should not be selected.
(5) Root color: young roots of most trees will be light in color.
(6) Trees selected for planting should have no less than four feet between planted grade and lowest branch on the trunk for a two inch caliper tree.
(7) Trees selected for planting should have radially symmetrical branching with a dominant leader.
(8) Trees selected for planting should be free of root defects. Three types of root defects generally occur:
= (EJGA@NKKPO EJSDE?DP=LNKKPO I=FKN>N=J?DNKKPO KN>KPD=NA>AJPIKNAPD=J@ACNAAOSEPDHAOO than 20 percent of the root system originating above the kink. A tree with such roots will probably bend at the soil line when released from a supporting stake.
b. Circling or girdling roots which circle 50 percent or more of the root system by 360 degrees or more. A tree with such roots would ultimately have less than 20 percent of its system available for support.
c. Trees planted too deep in containers or landscape. Excavate soil surrounding trunk to determine SDANAlNOPNKKP=NAATEPOPDAPNQJG=J@QOAPDEOLKEJP=O=LH=JPEJCCQE@ASee Figure 16).
B. Planting Standards for Trees
(1) Employment of proper planting techniques will be more favorable for tree establishment and will reduce attrition.
(2) Transplanting procedures should follow standards established by the International Society of Arboriculture in the "Trees and Shrub Transplanting Manual." The following is a summary of several key practices:
- 17 -

a. Pre-Planting Considerations: 1. Check for underground utilities prior to digging. 2. ,JHU DA=HPDU PNAAO SEPD = SAHH@ARAHKLA@ NKKP OUOPAI =J@ = SAHH BKNIA@ PKL ?D=N=?PANEOPE? KB PDAOLA?EAO ODKQH@>ALH=JPA@0P=J@=N@OBKNOAHA?PEJCMQ=HEPUOPK?G=NALNKRE@A@EJIANE?=J Standards for Nursery Stock ANSI Z60." 3. 1NAAOOAHA?PA@BKNLH=JPEJCODKQH@>A?KIL=PE>HASEPDPDAOLA?El?OEPA?KJ@EPEKJO 4. Make certain there is adequate soil volume for the tree and the potential size of the tree is =LLNKLNE=PA BKN PDA OEPA EJ?HQ@EJC LKPAJPE=H ?KJE?PO SEPD OECDP @EOP=J?A PN=Bl? =J@ LA@AOPNE=J ?HA=N=J?A =J@KRANDA=@QPEHEPEAO 5. Deciduous and evergreen trees should be planted between the end of October and mid-February.
b. Planting procedures 1. Planting holes should be no less than three times wider than the root ball or bare roots of the tree >AEJCLH=JPA@LH=JPEJCDKHAQLPKlRAPEIAOPDASE@PDKBPDANKKP>=HHEONA?KIIAJ@A@=J@I=U be necessary for poor or compacted soils. (See Figure 17). 2. Trees should be planted 10 percent higher than they were in their former location or container. Be OQNAPKEJOLA?PNKKP>=HHOPK@APANIEJASDANAPDAlNOPNKKP=NAATEPOPDAPNQJG=J@LH=JPPDEOLKEJP 10 percent higher than surrounding undisturbed soil level. 3. 0L=@A?KIL=?PA@>KPPKI=J@OE@AOKBPDALH=JPEJCDKHAODKQH@>ANKQCDA@KNO?=NElA@PK=HHKS the penetration of developing roots. 4. /KKP>=NNEANOODKQH@>AQOA@SDANALH=JPEJCK??QNO=@F=?AJPPKOE@AS=HG=J@KPDAND=N@O?=LA OQNB=?AO PKAJ?KQN=CA@AALANNKKPEJC=J@PKIEJEIEVANKKP?KJE?PO 5. Good water drainage from the bottom of the planting hole is essential for root establishment. 6. The application of soil amendments or fertilizer at the time of planting is not recommended.
- 18 -

Figure 16: Root Flare Detail Figure 17: Tree Planting Detail
- 19 -

C. Undesirable Tree Species List

The following plant species are not recommended when complying with the provisions of these standards.

Species (Latin Name) Acer ginnala Acer saccharinum Acer platanoides Arecaceae family Ailanthus altissima Albizia julibrissin Crataegus monogyna Crataegus laevigata Morus alba Populus alba Salix species Sapium sebiferum Sophora japonica

Common Name Amur Maple Silver Maple Norway Maple All Palms Tree of Heaven Mimosa Singleseed Hawthorn English Hawthorn White Mulberry White Poplar Willow Chinese Tallow Tree Japanese Pagoda Tree

- 20 -

Section 4: Tree Removal
(1) Positively identify ownership before authorizing tree removal. (2) %=RA=?ANPElA@=N>KNEOPAR=HQ=PAPNAADA=HPD=J@NEOGBKNB=EHQNA>ABKNANAIKREJCKH@ H=NCA H=J@I=NGKN
DEOPKNE?PNAAO KNPNAAO@=I=CA@EJ=OPKNI (3) Hire only experienced professionals to remove trees. Reduce the number and frequency of necessary
PNAANAIKR=HOPDNKQCDLNKLANPNAAOAHA?PEKJ LH=?AIAJP LNKPA?PEKJ =J@I=EJPAJ=J?A (4) "R=HQ=PAPNAAO=PNEOGBKNB=EHQNAQOEJCOP=J@=N@IAPDK@O SDE?DEJ?HQ@APDA=OOAOOIAJPKBPDALNK>=>EHEPU
KBB=EHQNA OEVAKBL=NPPD=PI=UB=EH =J@PDAP=NCAPOPD=PI=U>A=BBA?PA@ODKQH@PDAPNAAB=EH (5) Remove trees in irreversible health decline and poor condition. (6) /AIKRAPNAAO?NA=PEJC=D=V=N@KQOOEPQ=PEKJPD=P?=JJKP>ANAIA@EA@SEPDLNQJEJC ?=>HEJC=J@>N=?EJC
or remove the target. (7) KJOE@ANNAIKR=HKBPNAAOSEPD?D=N=?PANEOPE?OEJ?KJE?PSEPDPDAOEPAK=GSEPDH=NCA=?KNJOLH=JPA@EJ=
parking lot or thorny leaves near pedestrian areas). (8) Remove trees located where growing space is inadequate. (9) /AIKRAPNAAOSEPDQJ=PPN=?PERABKNI KNIAOOU D=V=N@KQO KNJKTEKQOKSANOKNBNQEP (10) /ALH=?APNAAOSDANARAN=J@SDAJARANLKOOE>HA LH=JPEJCH=NCA?=JKLUPNAAOEBOL=?ALANIEPO (11) /AMQAOPPDAHK?=HLKSAN?KIL=JUPKNAIKRAPNAAOHK?=PA@JA=NKN>AJA=PDQPEHEPUHEJAO@KJKP=PPAILPPK
remove these trees yourself. (12) To preserve landmark or historic trees with an increased risk of partial or whole tree failure as long as
LKOOE>HA ?KJOE@ANNAIKREJCPDAP=NCAP>UNAOPNE?PEJCLQ>HE?=??AOOKNIKREJCR=HQ=>HAOPNQ?PQNAO (13) Make certain that tree removal companies have a workman's compensation and liability insurance policy
in force before they begin work.
- 21 -

Section 5: Recommendations for Utility Corridors
(1) Avoid trees with aggressive root systems near underground water and sewer lines. (2) Plant only small maturing trees beneath overhead electrical power lines to ensure line clearance can be
maintained. (3) Maintain adequate clearance from all overhead and underground utility lines to facilitate repairs and
minimize impacts to trees. (4) -H=JPPNAAO=PHA=OPBAAPBNKIOASANHEJAO BAAPBNKIQJ@ANCNKQJ@AHA?PNE?=HLKSAN@EOPNE>QPEKJHEJAO
and 20 feet from underground electrical or gas transmission lines (See Figure 18). (5) Plant understory trees at least 15 feet from overhead electrical distribution lines (See Figure 19). (6) Plant overstory trees at least 40 feet from overhead electrical distribution lines (See Figure 19). (7) -NQJAPNAAO=??KN@EJCPKLNKBAOOEKJ=HOP=J@=N@O AILHKUEJCJ=PQN=HP=NCAPLNQJEJCPKNAIKRAQJ@AOEN=>HA
limbs at the branch collar. (8) Employ crown-reduction pruning instead of tree "topping" to reduce tree size beneath utility lines. (9) /AIKRAPNAAOEJ?KJE?PSEPDKRANDA=@AHA?PNE?=HLKSANHEJAOEB?HA=N=J?A?=JJKP>AI=EJP=EJA@PDNKQCD
proper pruning. (10) 1QJJAHEJOPA=@KBPNAJ?D>AJA=PDPNAANKKPOSEPDEJPDA /7BKNPDAEJOP=HH=PEKJKNNAL=ENKB?=>HA LDKJA
AHA?PNE? C=O S=PANKNOASANHEJAO ENNEC=PEKJOUOPAIO KN=JUQPEHEPU (11) Never use spikes to climb trees during overhead utility line installation or repair. (12) Maintain at least 15 foot clearance between overhead power lines and tree limbs.
- 22 -

Figure 18: Underground Utilities Figure 19: Overhead Utilities
- 23 -

Section 6: Tree Care and Maintenance Practices
A. Tree Pruning (1) Only experienced professionals should prune trees and all tree pruning should conform to ANSI A-300 0P=J@=N@OBKN1NAA =NA,LAN=PEKJON>KNEOPO?ANPElA@>UPDA&JPANJ=PEKJ=H0K?EAPUKBN>KNE?QHPQNAD=RA >AAJPAOPA@PKAJOQNA=IEJEIQIHARAHKB=N>KNE?QHPQN=H?KILAPAJ?U=J@I=EJP=EJPDAEN?ANPEl?=PEKJSEPD continuing education. (2) 1DAK>FA?PERAOBKNPNAALNQJEJCODKQH@>AAOP=>HEODA@LNEKNPK?KIIAJ?AIAJPKBLNQJEJC=?PEREPU (3) 1NAAODKQH@JARAN>APKLLA@1KLLEJC=PNAALANI=JAJPHU@=I=CAOEPOOPNQ?PQNA @AOPNKUOEPOR=HQA @=I=CAOEPODA=HPD =J@@A?NA=OAOPDAPNAAOO=BAPU (4) Climbing spikes should never be used when pruning trees. (5) Always prune branches back to parent branches or branches at least one-third the diameter of the branch being pruned. (6) No more than one-quarter of the foliage of a mature tree should be removed in any one growing season. (7) *=GALNKLANLNQJEJC?QPO QOEJCPDAPDNAA?QPIAPDK@See Figure 20
RKE@OPQ>?QPO QOD?QPO=J@ wounds on the remaining limbs and trunk. (8) -NQJEJC?QPOODKQH@>AI=@AFQOPKJPDAKQPOE@AKBPDA>N=J?D?KHH=NSee Figure 20). (9) PPDAPEIAKBLH=JPEJC LNQJAKJHU@A=@ @=I=CA@ >NKGAJ ?NKOOEJC KNNQ>>EJC>N=J?DAO (10) Do not remove more than one-third of the foliage from a young tree during any one growing season. (11) -NQJAPNAAOSDAJUKQJCPK@ARAHKL>N=J?DOPNQ?PQNA OPNAJCPD =J@BKNI (12) Prune to remove one of two leaders on trees with co-dominant (forked) stems. (13) -NQJAPNAAONACQH=NHUPDNKQCDKQPPDAENHEBAPKI=EJP=EJRADE?QH=N LA@AOPNE=J =J@OECDP?HA=N=J?A =J@PK remove deadwood and broken branches.
- 24 -

Figure 20: Tree Pruning Detail
B. Tree Mulch (1) 1NAAIQH?DEJCEORANU>AJAl?E=HPKPNAAO>A?=QOAEPDAHLNAP=EJOKEHIKEOPQNA IK@AN=PAOOKEHPAILAN=PQNA OQLLNAOOAO SAA@ CNKSPD NA@Q?AO OKEH ?KIL=?PEKJ =J@ NA@Q?AO PDA LKPAJPE=H BKN IKSAN =J@ OPNEJC trimmer damage to trees (See Figure 21). (2) 2OAKNC=JE?I=PANE=HOOQ?D=OLEJAOPN=S HA=RAO =CA@SKK@?DELO=J@?KILKOPRKE@CN=OO?HELLEJCO LH=OPE? =J@NK?GO (3) Use the tree's own fallen leaves for mulch if not diseased. (4) 0LNA=@IQH?DEJ=JARAJH=UAN PDNAAPKBKQNEJ?DAO@AALRKE@IKQJ@EJCPDAIQH?D=NKQJ@PDAPNAAO trunk. (5) (AALIQH?D=PHA=OAlRAEJ?DAOBNKIPDAPNAAOPNQJG (6) #KNJASHUAOP=>HEODA@PNAAO IQH?D=J=NA==PHA=OPOETBAAPEJ@E=IAPAN (7) #KNKH@ANAOP=>HEODA@PNAAO IQH?DKQP=OB=N=OLN=?PE?=H*QH?DEJCPKPDA@NELHEJAEOIKOP@AOEN=>HA (8) *QH?DPSE?ALANUA=N EJPDAH=PAOLNEJC=J@EJB=HH@QNEJCHA=BB=HH
- 25 -

Figure 21: Tree Mulching Detail
C. Soil Environment
*=EJP=EJEJCDA=HPDUOKEHONA@Q?AOPNAAOPNAOO=J@EILNKRAOPNAAOQNRER=H CNKSPD=J@HKJCAREPU EILNKRAO NKKPOPNQ?PQNA =J@NA@Q?AOPDALKPAJPE=HBKNPNAAB=EHQNA (2) Adequate soil volume should be maintained throughout the lifetime of the tree. In a normal surface planting AJRENKJIAJPSEPD=RAN=CAOKEH@ALPDOCNA=PANPD=JKNAMQ=HPKPDNAABAAP OKEHRKHQIA?=H?QH=PEKJO?=J>A based on surface areas as follows: Understory tree = 200 square feet of soil surface area. Overstory tree = 400 square feet of soil surface area.
0KEHKNC=JE?I=PPAN?KJPAJPODKQH@>AI=EJP=EJA@=P=>KQPlRALAN?AJP
*QH?DEJCPNAAOSEHHEJ?NA=OAOKEHJQPNEAJPHARAHO KNC=JE?I=PPAN?KJPAJP EILNKRAOKEHOPNQ?PQNA=J@NA@Q?A the likelihood of string trimmer damage.
- 26 -


/KKP>=NNEANOODKQH@>AQOA@PKNA@ENA?PNKKPCNKSPD=S=UBNKIOE@AS=HGO ?QN>O=J@@NERAS=UO (6) Avoid soil compaction within the critical root zones of trees. Soil compaction results in an increase in soil
>QHG@AJOEPU NA@Q?AOOKEHLKNAOL=?A @A?NA=OAOOKEHKTUCAJ =J@HEIEPOPDA=R=EH=>EHEPUKBS=PAN
-=NGEJC @NEREJC =J@PDAPAILKN=NUOPKN=CAKB?KJOPNQ?PEKJI=PANE=HSEPDEJ?NEPE?=HNKKPVKJAOSEHHNAOQHP
in soil compaction. D. Fertilization
(1) Trees that are in an urban growing environment with limited natural nutrient cycling should be fertilized KJ=NACQH=N>=OEO ARANUPDNAAPKlRAUA=NO

&BPNAAO=NAATDE>EPEJCOUILPKIOKBJQPNEAJP@Al?EAJ?U OKEHOODKQH@>APAOPA@LNEKNPKBANPEHEV=PEKJ =J@PDA BANPEHEVANBKNIQH=PEKJODKQH@>A=@FQOPA@PK=@@NAOOPDAOLA?El?@Al?EAJ?U

+ASHULH=JPA@ @NKQCDPOPNAOOA@KNOARANAHU@=I=CA@KNEJFQNA@PNAAOODKQH@JKP>ABANPEHEVA@
#ANPEHEVANODKQH@>A=LLHEA@SDAJNKKPO=NA=?PERAHUCNKSEJC1DA>AOPPEIAO=NAH=PASEJPAN =J@A=NHU
spring through early summer.
+EPNKCAJ LDKOLDKNQO =J@LKP=OOEQI+-(
EJ=N=PEKJKBEOIKOP@AOEN=>HA (6) Use slow release organic fertilizers with a salt index of less than 50. (7) Slow release nitrogen should be applied at a rate of two to four pounds (of elemental nitrogen) per 1000
square feet of rooting area (See Table 3). (8) Fertilizer should be applied within the entire root zone of trees. Broadcast application is best where soils
are not compacted.
1DAQOAKBPNQJGBANPEHEVANEJFA?PEKJOKNEILH=JPOEOJKPNA?KIIAJ@A@
KJOE@ANOQ>OQNB=?A=LLHE?=PEKJOKBBANPEHEVANSDANAPQNBKNCNKQJ@?KRANATEOPO KNSDANANQJKBBEOHEGAHU
- 27 -

Table 3: Amount of Fertilizer of Various Formulations to Apply Per 1000 Square Feet PK?DEARA0LA?El?/=PAOKB+EPNKCAJ#ANPEHEV=PEKJ
E. Irrigation (1) @AMQ=PAOKEHIKEOPQNAHARAHONAOQHPEJ>APPANPNAACNKSPD NA@Q?A@OPNAOO =J@NA@Q?A@OQO?ALPE>EHEPUPK insect or disease problems. (2) "T?AOOERAOKEHIKEOPQNA?=JNAOQHPEJ=J=ANK>E??KJ@EPEKJO JQPNEAJP@Al?EAJ?EAO =J@PNAA@A?HEJA (3) Tree species should be matched to anticipated soil conditions. (4) Mulching trees helps conserve water. (5) Water trees before they show signs of water stress. (6) !QA PK R=NUEJC S=PAN NAOPNE?PEKJO ?DA?G SEPD PDA HK?=H S=PAN @AL=NPIAJP BKN =LLNKLNE=PA S=PANEJC schedules prior to manually watering or using an automatic irrigation system. (7) Plant trees at or slightly above ground level to avoid creating a place where excessive water accumulates. (8) &JPDA=>OAJ?AKB=@AMQ=PAN=EJB=HHPNAAOODKQH@>AENNEC=PA@=PPDAN=PAKBlRAPKOARAJC=HHKJOARANU seven days for every inch of trunk caliper or equal to one inch of rainfall every seven to ten days. Refer to (Table 4) for approximate duration of water applications. (9) Water should be applied evenly throughout the outer 75 percent of a tree's critical root zone. Runoff should be avoided. (10) 4=PANHAOOKBPAJSEPDCNA=PAN=IKQJPOKBS=PAN N=PDANPD=JIKNAKBPAJSEPDOI=HHAN=IKQJPOKBS=PAN (11) 4=PAN @QNEJC SEJPAN @NKQCDPO AOLA?E=HHU ARANCNAAJ PNAAO >QP KJHU EB PDA OKEH OQNB=?A PAILAN=PQNA EO greater than 40 degrees.
- 28 -

Table 4: Approximate Watering Time to Apply One Inch of Water Across Various Sized of Critical Root Zones
F. Pest Management (1) Plant trees where their needs will match the site conditions to prevent stress and predisposition of trees to pest attacks. (2) *QH?DPKNAHEARAOKEHIKEOPQNAOPNAOO=J@PKOQLLNAOOSAA@OLQHHSAA@O>UD=J@ where necessary around the bases of trees. (3) -NKPA?PPNAANKKPO PNQJGO =J@HEI>OBNKISKQJ@O4KQJ@O=NAAJPNULKEJPOBKNEJOA?PO=J@@EOA=OAO (4) )A=NJPDAD=>EPO=J@HEBA?U?HAKBPDALAOPO=BBA?PEJCUKQNPNAAO =J@GJKSSDAJPK=LLHULAOPE?E@AOBKN the greatest effect. (5) %ENAKJHUATLANEAJ?A@=J@GJKSHA@CA=>HALNKBAOOEKJ=HOPK=LLHULAOPE?E@AOPDAOP=PAKB$AKNCE=D=O= licensing program for pesticide applicators. (6) Do not apply any soil activated herbicides or weed-and-feed lawn formulations over the root systems of trees. (7) Contact the Cooperative Extension Service or Georgia Forestry Commission for instructions on collecting EJOA?P=J@@EOA=OAKNC=JEOIOKNOECJOBKN=J=HUOEO=J@E@AJPEl?=PEKJ
- 29 -

Canopy Size Large Landscape
Areas Road Frontage
Street Road Frontage
Yard Parking Lot Trees islands >200 sq ft Parking Lot Trees islands 100 to 200
sq ft Buffers Riparian/ Drainage Areas Utility Corridors Urban Tolerant

Section 7: Suggested Tree Selection List
Suggested Tree Species Selection List

Species Common Name

Baldcypress Basswood, American (Linden) Beech, American Catalpa, Southern Cedar, Deodar Cedar, Lebanon Cherry, Japanese Flowering Cherry, Yoshino Cherry, Kwanzan Cherrylaurel, Carolina Chinquapin, Allegheny Cleyera Crabapple, Japanese Flowering Cryptomeria Cypress, Arizona (Carolina Saphire) Cypress, Leyland Dogwood, Flowering Elm, American (Princeton) Elm, Chinese (Athena, Bosque, etc) Ginkgo (male) Golden Rain Tree Hawthorn, Washington Hickory (spp.) Holly, American Holly, Chinese Holly, English Holly, Longstalk Holly, Lusterleaf Holly, Savannah Holly, Penny Holly, Yaupon Hornbeam, American Hornbeam, European Juniper, Hetzi -XQLSHU3W]HU Katsura Tree Locust, Black (seedless)

Medium

X

X

X

X

Large

X

X

X

Large

X

X

Medium

X

X

Medium

X

X

X

Medium

X

X

Small

X

X

X

X

Small

X

X

X

Small

X

X

X

Medium

X

X

X

X

Medium

X

Small

X

Small

X

X

X

X

Small

X

X

Medium

X

X

X

X

Small

X

Small

X

X

X

X

Large

X

X

Medium

X

X

X

X

X

Large

X

X

X

X

Small

X

X

X

X

Small

X

X

X

X

Large

X

Very Small

X

X

X

Very Small

X

X

Very Small

X

X

Very Small

X

X

Very Small

X

X

Very Small

X

Very Small

X

X

Very Small

X

X

Medium

X

X

X

X

X

Medium

X

X

X

X

X

Small

X

Small

X

Medium

X

X

X

X

Medium

X

X

X

- 30 -

Suggested Tree Species Selection List (cont.)

Canopy Size Large Landscape
Areas Road Frontage
Street Road Frontage
Yard Parking Lot Trees islands >200 sq.ft. Parking Lot Trees islands 100 to 200
sq. ft. Buffers Riparian/ Drainage Areas Utility Corridors Urban Tolerant

Species Common Name

London Planetree Magnolia, Southern Magnolia, Southern "Little Gem" Magnolia, Sweetbay Maple, Red Maple, Southern Sugar Maple, Sugar Maple, Amur Maple, Autumn Blaze Maple, Hedge Maple, Trident Myrtle, Wax Oak, Black Oak, Chestnut Oak, Darlington Oak, Japanese Evergreen Oak, Laurel Oak, Northern Red Oak, Nuttal Oak, Overcup Oak, Post Oak, Sawtooth Oak, Scarlet Oak, Shumard Oak, Southern Red Oak, White Oak, Willow Pagodatree, Japanese Pecan Pine, Virginia Pistache, Chinese Planetree, London Popular, Tulip Redbud, Eastern Redcedar, Eastern Redwood, Dawn Serviceberry, Downey Smoketree Sourwood Sycamore, American Yellowwood, American Zelkova, Japanese

Medium

X

X

X

X

Large

X

X

X

Medium

X

Medium

X

X

X

X

X

Medium

X

X

X

X

X

X

Medium

X

X

X

X

X

X

X

Large

X

X

X

X

Medium

X

X

X

X

Large

X

X

X

X

X

Small

X

X

Small

X

X

X

X

X

X

X

X

Very Small

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

X

Large

X

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

X

Large

X

X

X

X

Large

X

X

X

X

Large

X

X

Large

X

X

X

Medium

X

Medium

X

X

X

X

X

Large

X

X

X

X

Large

X

X

Small

X

X

X

X

X

X

Medium

X

X

X

Medium

X

X

X

Small

X

X

X

X

X

X

X

Very Small

X

X

Medium

X

X

Large

X

X

Medium

X

X

Large

X

X

X

- 31 -

GLOSSARY KB0AHA?PA@1ANIEJKHKCEAO=J@!AlJEPEKJO
for Community Tree Ordinances ,NECEJKB1ANIO=J@!AlJEPEKJO 0AHA?PA@PANIOD=RA>AAJ@ANERA@BNKIPDAOKQN?AOHEOPA@>AHKS =OSAHH=OBNKIIKNAPD=J$AKNCE= community tree ordinances. Published sources include: )EHHU 0D=NKJ-NKFA?P)A=@AN
$HKOO=NUKBN>KNE?QHPQN=H1ANIO &0 0DECK HAT)+AS1NAAEKHKCU!E?PEKJ=NU 1ANIO 1KLE?O =J@1NA=PIAJPOBKN1NAAO=J@1DAEN-NK>HAIO=J@ -NKLAN =NA 0DECK=J@1NAAOOOK?E=PAO !QND=I +% Georgia Forestry Commission Glossary of Forestry Terms. USDA Forest Service. %A=@ KJJEA/A?KIIAJ@A@1ANIEJKHKCU=J@0LA?El?=PEKJOBKN KIIQJEPU1NAA,N@EJ=J?AO

- 32 -

A

Administrator

The person responsible for administration of the tree regulations or his/her designee.

Administrative or Technical $QE@AHEJAOKNNAMQENAIAJPOJAA@A@PK>ABQHlHHA@BKN?KILHE=J?ASEPDPDA?KIIQJEPUPNAAKN@EJ=J?A Standards

Aeration

The process of adding air to the soil to alleviate soil compaction and improve structure.

Aeration system Agricultural Operations

Set of vertical holes or trenches created in the tree's root area to improve oxygen availability to the roots and gas exchange with the atmosphere.
Those operations associated with growing a sellable agricultural commodity.

ANSI

Acronym for American National Standards Institute.

ANSI A300 standards

&JPDA2JEPA@0P=PAO EJ@QOPNU@ARAHKLA@ J=PEKJ=H?KJOAJOQOOP=J@=N@OKBLN=?PE?ABKNPNAA?=NA

ANSI Z133.1 standards Appraisal

&JPDA2JEPA@0P=PAO EJ@QOPNU@ARAHKLA@ J=PEKJ=H?KJOAJOQOO=BAPUOP=J@=N@OKBLN=?PE?ABKNPNAA care.
Placing a monetary value on a tree or landscaping.

Arboriculture

Practice and study of the care of trees and other woody plants in the landscape.

N>KNEOP OAA=HOK?ANPElA@ Professional who possesses the technical competence gained through experience and related

Arborist)

PN=EJEJCPKLNKRE@ABKNKNPKOQLANREOAPDAI=J=CAIAJPKBPNAAO=J@KPDANSKK@ULH=JPOEJNAOE@AJPE=H

?KIIAN?E=H =J@LQ>HE?H=J@O?=LAO

Assessment

The hands-on inspection and review of the health and structural integrity of a tree.

B

=?GlHH

OKEH=J@=IAJ@IAJPO
QOA@PKlHHPDADKHASDAJLH=JPEJC=PNAA
OKEH ?KIIKJlHH =CCNAC=PAO KN?KJP=IEJ=JPOEJR=NEKQO?KI>EJ=PEKJOLQP>=?GEJPK=JAT?=R=PEKJI=UJKP>ADKOLEP=>HABKNPNAA root growth and function.

Balled and burlapped (B&B) 1NAAKNKPDANLH=JPNAIKRA@BNKIPDACNKQJ@BKNNALH=JPEJC SEPDPDANKKPO=J@OKEHSN=LLA@EJ >QNH=L?KIL=NAPKbare root container grown and containerized.

Bare root

1NAAKNKPDANLH=JPNAIKRA@BNKIPDACNKQJ@BKNNALH=JPEJCSEPDKQPOKEH=NKQJ@PDANKKPO?KIL=NAPK balled and burlapped container grown =J@containerized.

Barrier

BAJ?AOKNKPDANIA=JOKBAOP=>HEODEJC=LNKPA?PEKJVKJA=NKQJ@PNAAOKJ?KJOPNQ?PEKJOEPAO
membranes or sheets installed vertically in the soil for limiting or directing the growth of tree roots.

Best management practices AOP=R=EH=>HA EJ@QOPNUNA?KCJEVA@?KQNOAOKB=?PEKJ EJ?KJOE@AN=PEKJKBPDA>AJAlPO=J@HEIEP=PEKJO

(BMPs)

>=OA@KJO?EAJPEl?NAOA=N?D=J@?QNNAJPGJKSHA@CA

Bracing

Installation of metal rods through weak portions of a tree for supplemental support.

Branch bark ridge Branch collar Buffers

/=EOA@OPNELKB>=NG=PPDAPKLKB=>N=J?DQJEKJ SDANAPDACNKSPD=J@ATL=JOEKJKBPDAPNQJGKN L=NAJPOPAI=J@=@FKEJEJC>N=J?DLQODPDA>=NGEJPK=NE@CA
NA=SDANA=>N=J?DFKEJO=JKPDAN>N=J?DKNPNQJGPD=PEO?NA=PA@>UPDAKRANH=LLEJCR=O?QH=N PEOOQAOBNKI>KPDPDA>N=J?D=J@PDAPNQJGPULE?=HHUAJH=NCA@=PPDA>=OAKBPDA>N=J?D
A natural undisturbed or created portion of a lot which is set aside to achieve a visual and/or noise barrier between parcels or land uses.

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Buildable area Bulk density
C
Cabling Caliper
Canopy Canopy tree Cavity Central leader
ANPElA@=N>KNEOP
Cleaning Clearance Clear cutting
Climbing spurs Codominant branches, Codominant stems Conifer Conk Container grown Containerized
Critical root zone (CRZ)
Cross section

1DALKNPEKJKB=HKPSDE?DEOJKPHK?=PA@SEPDEJ=JUIEJEIQINAMQENA@U=N@ H=J@O?=LAOPNEL=NA= KN >QBBANPD=PLKNPEKJKB=HKPSDANAEJ=>QEH@EJCI=U>AHK?=PA@
*=OOKBOKEHLANQJEPRKHQIAKBPAJQOA@=O=IA=OQNAKB?KIL=?PEKJ
Installation of hardware or synthetic rope in a tree to provide supplemental support to weak branches or crotches.
A standard of trunk measurement for understory or replacement trees. Caliper inches are measured at the height of 6 inches above the ground for trees up to and including 4-inch caliper and 12 inches above the ground for trees larger than 4-inch caliper.
Collective branches and foliage of a tree or group of trees.
1DAQLLANIKOPH=UANKBPDABKNAOP?=JKLU=PNAAKNPNAAOLA?EAOSEPD=?NKSJPD=PATEOPOEJKND=OPDA potential to reach the uppermost portion of the forest canopy. Also: Overstory tree.
,LAJKN?HKOA@DKHHKSSEPDEJ=PNAAOPAI QOQ=HHU=OOK?E=PA@SEPD@A?=U
*=EJOPAIKB=PNAA L=NPE?QH=NHUKB=JAT?QNNAJPOLA?EIAJ
Professional who possesses the technical competence gained through experience and related PN=EJEJCPKLNKRE@ABKNKNOQLANREOAPDAI=J=CAIAJPKBPNAAO=J@KPDANSKK@ULH=JPOEJNAOE@AJPE=H ?KIIAN?E=H =J@LQ>HE?H=J@O?=LAOSDKOAHARAHKBPN=EJEJCEO?ANPElA@>UPDA&JPANJ=PEKJ=H0K?EAPUKB Arboriculture. &JLNQJEJC PDAOAHA?PERANAIKR=HKB@A=@ @UEJC @EOA=OA@ =J@>NKGAJ>N=J?DAO
IKQJPKBKLAJOL=?A>APSAAJ=PNAA>N=J?D=J@=LKSANHEJA PDACNKQJ@ KN=OPNQ?PQNA
OEHRE?QHPQN=HOUOPAIEJSDE?D=HHIAN?D=JP=>HAPNAAO=NAD=NRAOPA@KRAN=OLA?ElA@=NA=EJ KJAKLAN=PEKJ SEPDPDAEJPAJPKBLNAL=NEJCPDAH=J@BKNNALH=JPEJC=OL=NPKB=JKJCKEJCPEI>AN management operation.
0D=NL@ARE?AOOPN=LLA@PK=?HEI>ANOHKSANHACOPK=OOEOPEJ?HEI>EJCLKHAOKNPNAAO>AEJCNAIKRA@ =HOK?=HHA@OLEGAO C=BBO ENKJO DKKGO KN?HEI>ANO
#KNGA@>N=J?DAOJA=NHUPDAO=IAOEVAEJ@E=IAPAN =NEOEJCBNKI=?KIIKJFQJ?PEKJ=J@H=?GEJC= normal branch union.
KJA>A=NEJCPNAAKNKPDANLH=JPPD=PD=OEPOOAA@OEJ=OPNQ?PQNA?=HHA@=?KJAI=JU >QPJKP=HH conifers are evergreen.
#NQEPEJC>K@UKNJKJBNQEPEJC>K@UOPANEHA?KJG
KB=BQJCQO KBPAJ=OOK?E=PA@SEPD@A?=U
1NAAKNKPDANLH=JPPD=PD=O>AAJCNKSJEJ=?KJP=EJAN?KIL=NAPK>=HHA@=J@>QNH=LLA@ >=NANKKP and containerized.
#EAH@CNKSJLH=JPLH=?A@EJPK=?KJP=EJANBKN=PEIA=J@PDAJOKH@=O=LKPPA@LH=JPPANI@KAO JKPEJ?HQ@A=LH=JPEJEPE=HHUCNKSJEJ?KJP=EJANO?KIL=NAPK>=HHA@=J@>QNH=LLA@ >=NANKKP =J@ container grown.
0KEH=NA==NKQJ@=PNAASDANAPDANKKPO=NAHK?=PA@PD=PLNKRE@AOOP=>EHEPU=J@=OECJEl?=JPQLP=GAKB IKEOPQNA@AlJA@=O=?EN?HA=NKQJ@PDAPNQJGSEPD=N=@EQOKBBAAPBKNARANUEJ?DEJ!% KN=O =J=NA=AOP=>HEODA@>U=?ANPElA@=N>KNEOP
Section perpendicular to the axis of longitudinal growth.
- 34 -

Crown Crown cleaning Crown reduction Cultivar Cut / Grade change
D
DBH Deadwooding Decay Deciduous Decline Development Activity
Dieback Diameter at breast height Directional pruning Disease Dormant Drip line
E
Easement, planting Easement, utility Evergreen

2LLANL=NPKB=PNAA IA=OQNA@BNKIPDAHKSAOP>N=J?D =J@EJ?HQ@EJC=HHPDA>N=J?DAO=J@BKHE=CA
/AIKREJC@A=@ @UEJC @EOA=OA@ =J@KN>NKGAJ>N=J?DAOBNKIPDAPNAA?NKSJ
Method of reducing the height and/or spread of a tree by making appropriate pruning cuts.
QHPER=PA@R=NEAPUKB=LH=JP?=JJKP>ANALNK@Q?A@SEPDKQPDQI=J=OOEOP=J?AQOQ=HHULNKL=C=PA@ =OATQ=HHU?HKJA@
?KIL=NAPKvariety. Removal or excavation of existing soil which changes the contour of the land.
?NKJUIBKN@E=IAPAN=P>NA=OPDAECDPOP=J@=N@IA=OQNAIAJPKBPNAAOEVAPDA@E=IAPANKB=PNAA trunk measured at 4.5 feet (1.3 meters) above ground. Removing dead and dying branches from a tree.
(n.
J=NA=KBSKK@PD=PEOQJ@ANCKEJC@A?KILKOEPEKJv.) decomposition of organic tissues by fungi or bacteria. Tree or other plant that sheds all of its leaves according to a genetically scheduled cycle during the ?KH@OA=OKJEJPAILAN=PAVKJAO?KIL=NAPKevergreen. Gradually diminishing health or condition of a tree.
JU=HPAN=PEKJKBPDAJ=PQN=HAJRENKJIAJP SDE?DNAMQENAOPDA=LLNKR=HKB=@ARAHKLIAJPKNOEPALH=J and issuance of a Land Disturbance Permit. Includes: the removal or destruction of trees incidental PKPDA@ARAHKLIAJPKBH=J@KNPKPDAI=NGAPEJCKBH=J@BKN@ARAHKLIAJPPDANAIKR=HKN@AOPNQ?PEKJ KBPNAAOEJ?KJFQJ?PEKJSEPD=JUCN=@EJC=?PEREPU EJ?HQ@EJCPDANAIKR=HKBPNAAOEJ?E@AJP=HPKPDA @ARAHKLIAJPKBH=J@KNPKPDAI=NGAPEJCKBH=J@BKN@ARAHKLIAJPPDANAIKR=HKN@AOPNQ?PEKJKBPNAAO EJ?KJFQJ?PEKJSEPD=JUCN=@EJC=?PEREPU EJ?HQ@EJCPDANAIKR=HKNlHHEJCOPK?GLEHEJC
KBOKEH =J@ HKCCEJC KNPDANAIKR=HKBPNAAOJKPEJ?KJFQJ?PEKJSEPD=JKJCKEJCBKNAOPI=J=CAIAJPLNKCN=I
Condition in which the branches in the tree crown die from the tips toward the center.
See DBH.
/AIKREJC>N=J?DAOBNKI=PNAAEJOQ?D=S=U=OPKAJ?KQN=CAJASCNKSPDEJ=L=NPE?QH=N@ENA?PEKJ usually applied to direct growth away from overhead conductors or other structures.
KJ@EPEKJPD=PEIL=ENOPDALANBKNI=J?AKBKJAKNIKNAREP=HBQJ?PEKJOQOQ=HHU=OOK?E=PA@SEPD infectious conditions. State of reduced physiological activity in the organs of a plant.
&I=CEJ=NU>KQJ@=NUKJPDAOKEHOQNB=?A@AlJA@>UPDA>N=J?DOLNA=@KB=OEJCHALH=JPKNCNKQLKB LH=JPO1DEO=NA=@KAOJKP@AlJAPDANKKPVKJAKB=PNAA
!AlJA@OPNELKBH=J@=@F=?AJPPKPDALQ>HE?NECDPKBS=UCN=JPA@>U=LNER=PALNKLANPUKSJANKJSDE?D the local government has the right to plant trees. !AlJA@OPNELKBH=J@>AJA=PD=QPEHEPUHEJAKRANSDE?DPDAQPEHEPUD=ONECDPOKBS=UPKI=EJP=EJ ?HA=N=J?AAOOAJPE=HHUL=NPKBPDANECDPKBS=U 1NAAKNKPDANLH=JPPD=P@KAOJKPODA@=HHKBEPOBKHE=CA=JJQ=HHU?KIL=NAPKdeciduous.

- 35 -

F

Fertilization Fill / Grade Change Flush cut Forestry
G

LLHE?=PEKJKBAOOAJPE=HIEJAN=HOPK=LH=JP QOQ=HHUPDNKQCDPDAOKEH
Placement of additional soil over existing grade which changes the contour of the land possibly altering nutrient movement through soil and hydrology of the site.
-NQJEJC?QPPDNKQCD=J@KNNAIKREJCPDA>N=J?D?KHH=N ?=QOEJCQJJA?AOO=NUEJFQNUPKPDAPNQJGKN parent stem.
*=J=CAIAJPKBBKNAOPO QOEJCOEHRE?QHPQN=HPNA=PIAJPO PKLNKRE@A=R=NEAPUKBBKNAOP>AJAlPOEJ?HQ@EJC PEI>AN =AOPDAPE?O SEH@HEBAD=>EP=P =J@KNNA?NA=PEKJ=HKLLKNPQJEPEAO

Genus Girdling root Grade Grading Activity
Grubbing Gymnosperm
H

1=TKJKIE?CNKQLKBOLA?EAOD=REJCOEIEH=NBQJ@=IAJP=HPN=EPO>KP=JE?=H?H=OOEl?=PEKJQJ@ANPDA B=IEHUHARAH=J@=>KRAPDAOLA?El?ALEPDAPHARAH
/KKPPD=PAJ?EN?HAO=HHKNL=NPKBPDAPNQJGKB=PNAA KNKPDANNKKPO SDE?D?KJOPNE?POPDAR=O?QH=N tissue and inhibits secondary growth and the movement of water and photosynthates.

0QNB=?AHARAHKBPDACNKQJ@
MQ=HEPU@APANIEJ=PEKJBKNJQNOANUOPK?G
HPANEJCCNKQJ@OQNB=?AOPKOLA?ElA@AHAR=PEKJO @EIAJOEKJO=J@KNOHKLAOEJ?HQ@AOOPNELLEJC ?QPPEJC lHHEJC OPK?GLEHEJC=J@OD=LEJCKN=JU?KI>EJ=PEKJPDANAKB =J@OD=HHEJ?HQ@APDAH=J@EJEPO?QP KNlHHA@?KJ@EPEKJ
1DANAIKR=HKBQJ@AN>NQOD OQ?D=OODNQ>O REJAO=J@PNAAOQJ@ANBKQN
EJ?D>=O=H?=HELAN$NQ>>EJC does not include root raking and/or soil disturbance within the drip line of conserved or protected trees.
-H=JPOSEPDATLKOA@OAA@O QOQ=HHUSEPDEJ?KJAO?KIL=NAPK=JCEKOLANI

Hazard assessment Hazardous Tree
Herbicides Horizontal boring
I

Process to determine the risk potential of a tree.
PNAAPD=PEO=PNEOGBKNB=EHQNA>A?=QOAEPEO@A=@KNOPNQ?PQN=HHU@ABA?PERA EJ=HK?=PEKJSDANAPD=P B=EHQNA?KQH@NAOQHPEJLANOKJ=HEJFQNUKNLNKLANPU@=I=CA
Chemical compounds that kill vegetation.
HPANJ=PERAPKPNAJ?DEJCBKNEJOP=HH=PEKJKBQJ@ANCNKQJ@QPEHEPEAO=RKE@O?QPPEJCKBPNAANKKPO?KIL=NA to trenching and tunneling.

Impervious surface
Included bark
International Society of Arboriculture

OQNB=?APDNKQCDSDE?DS=PAN?=JJKPLAJAPN=PA OQ?D=O?KJ?NAPA =OLD=HP NKKBPKLO KNOARANAHU compacted soil.
Bark that becomes embedded in a crotch (union) between branch and trunk or between codominant OPAIO?=QOAO=SA=GOPNQ?PQNA
A worldwide professional organization dedicated to fostering a greater appreciation for trees and PKLNKIKPEJCNAOA=N?D PA?DJKHKCU=J@PDALNKBAOOEKJ=HLN=?PE?AKB=N>KNE?QHPQNA1DEOKNC=JEV=PEKJ =@IEJEOPANO?ANPEl?=PEKJLNKCN=IOKB=N>KNEOPO PNAASKNGANO QPEHEPU=N>KNEOPO =J@IQJE?EL=H=N>KNEOPO

Integrated Pest Management *APDK@KB?KJPNKHHEJCLH=JPLAOPO>U?KI>EJEJC>EKHKCE?=H ?QHPQN=H IA?D=JE?=H LDUOE?=H =J@KN

(IPM)

chemical controls.

- 36 -

Introduced species Invasive species
L
Leader Limb Limited disturbance Limits of clearing Line clearance Live crown ratio
M
Macronutrient Mass grading Mature height Micronutrient Mitigation Mulch
Mycorrhizae
N
Native species Natural (target) pruning Naturalized species Non-development activity

,NC=JEOIOJKPJ=PERAPK=NACEKJ?KIL=NAPKnative species and naturalized species. +KJJ=PERAKNC=JEOIOHEGAHUPKOLNA=@ @EONQLPEJCPDAJ=PQN=H>=H=J?AKB=JA?KOUOPAI
-NEI=NUPANIEJ=HODKKPKNPNQJGKB=PNAAH=NCA QOQ=HHUQLNECDPOPAI=OPAIPD=P@KIEJ=PAO=LKNPEKJ of the crown by suppressing lateral branches. )=NCA LNEI=NU>N=J?DKB=PNAA Limits of any soil-disturbing activity. Limits of any removal of vegetation. Process of removing vegetation around utility lines. /=PEKKBPDADAECDPKBPDA?NKSJ ?KJP=EJEJCHERABKHE=CA PKPDAKRAN=HHDAECDPKBPDAPNAA
JUKBPDAJEJA
AOOAJPE=HAHAIAJPONAMQENA@>ULH=JPOEJNAH=PERAHUH=NCAMQ=JPEPEAOEJBANPEHEVAN JEPNKCAJ+
LDKOLDKNQO-
=J@LKP=OOEQI(
=NAPDALNEI=NUAHAIAJPO?KIL=NAPK micronutrient. -NK?AOOKBNAOD=LEJCH=J@O?=LAPKOLA?ElA@AHAR=PEKJOBKNPDA?KJOPNQ?PEKJKB>QEH@EJCO=J@KNPK provide drainage. Maximum height that a plant is likely to reach if conditions of the planting site are favorable. JUKBPDAAOOAJPE=HAHAIAJPONAMQENA@>ULH=JPOEJNAH=PERAHUOI=HHMQ=JPEPEAO>KNKJ
?KLLAN Q
?K>=HP K
ENKJ#A
I=JC=JAOA*J
IKHU>@AJQI*K
=J@VEJ?7J
?KIL=NAPKmacronutrient. &JPNAANEOGI=J=CAIAJP LNK?AOOKBNA@Q?EJC =HHARE=PEJC KNIEJEIEVEJC@=I=CAOKNNEOG *=PANE=HPD=PEOOLNA=@KJPDAOKEHOQNB=?APKNA@Q?ASAA@CNKSPD NAP=EJOKEHIKEOPQNA IK@AN=PA PAILAN=PQNAATPNAIAO LNARAJP@=I=CABNKIH=SJI=EJPAJ=J?AAMQELIAJP =J@EILNKRA=AOPDAPE? =LLA=N=J?AKBPDAH=J@O?=LAKJHUKNC=JE?I=PANE=HOOQ?D=O?KILKOP HA=RAO LEJAOPN=S KNSKK@ chips are considered proper mulch. Symbiotic association between certain fungi and the roots of a plant.
-H=JPOEJ@ECAJKQOPK=NACEKJJ=PQN=HHUK??QNNEJC=J@JKPEJPNK@Q?A@>UI=J?KIL=NAPKintroduced species and naturalized species. Process of branch removal in which the pruning cuts are made at nodes and in relation to the positions of the branch collar and branch bark ridge. Non-native species that has become established in a region and propagates without human =OOEOP=J?A?KIL=NAPKintroduced species and native species. JU=HPAN=PEKJKBPDAJ=PQN=HAJRENKJIAJPSDE?D@KAOJKPNAMQENA@ARAHKLIAJPKNOEPALH=J=LLNKR=H but which would include the proposed removal or destruction of any tree(s). Any removal of trees PD=P?KJOPEPQPAO!ARAHKLIAJP?PEREPU=OPD=PPANIEODANAEJ@AlJA@OD=HHJKP?KJOPEPQPAJKJ development activity.

- 37 -

O
Organic fertilizer Organic layer Organic matter Ornamental Tree
Overstory, overstory tree
P
Pest Pesticide pH
Phloem
Photosynthesis
Plant Health Care -H=JPEJCOLA?El?=PEKJO Protection zone Pruning Pruning cycle
Public / Park tree
Q
.Q=HElA@HEJA?HA=N=J?A arborists
R
Radial trenching
Raising

#ANPEHEVAN@ANERA@BNKILH=JPOKN=JEI=HO?KIL=NAPKinorganic fertilizer. Layer of organic matter at the soil surface. *=PANE=H@ANERA@BNKIPDACNKSPD=J@@A=PD
KBHEREJCKNC=JEOIO?KILKOP DQIQO 2OQ=HHU=IE@OPKNUKNQJ@ANOPKNUPNAAOAHA?PA@BKN=AOPDAPE?KSANEJC >N=J?DEJC KN>=NG characteristics. 1DAQLLANIKOPH=UANKBPDABKNAOP?=JKLU=PNAAKNPNAAOLA?EAOSEPD=?NKSJPD=PATEOPOEJ KND=O PDALKPAJPE=HPKNA=?D PDAQLLANIKOPLKNPEKJKBPDABKNAOP?=JKLU2OQ=HHUKRANBAAPEJI=TEIQI height.
,NC=JEOIPD=PEO@=I=CEJC JKTEKQOKN=JQEO=J?A JU?DAIE?=HQOA@PKGEHHQJS=JPA@KNC=JEOIOOQ?D=OSAA@O EJOA?POKNBQJCE 2JEPKBIA=OQNAPD=P@AO?NE>AOPDA=HG=HEJEPUKN=?E@EPUKB=OKHQPEKJJAC=PERAHKCKBPDADU@NKCAJEKJ ?KJ?AJPN=PEKJIA=OQNA@KJ=O?=HABNKIPKEO=HG=HEJA EO=?E@E? =J@EOJAQPN=HLQNA water). -H=JPR=O?QH=NPEOOQAPD=PPN=JOLKNPOLDKPKOUJPD=PAO=J@CNKSPDNACQH=PKNOOEPQ=PA@KJPDAEJOE@AKB PDA>=NG FQOPKQPOE@APDA?=I>EQIEO>E@ENA?PEKJ=HPN=JOLKNPOQL=J@@KSJ
?KIL=NAPKTUHAI Process in green plants (and in algae and some bacteria) by which light energy is used to form glucose (chemical energy) from water and carbon dioxide.
KILNADAJOERALNKCN=IPKI=J=CAPDADA=HPD OPNQ?PQNA =J@=LLA=N=J?AKBLH=JPOEJPDAH=J@O?=LA Detailed plans and statements of particular procedures and standards for planting. See tree protection zone. Cutting away unwanted or damaged parts of a plant. &JQPEHEPU=J@IQJE?EL=H=N>KNE?QHPQNA PDAPEIAO?DA@QHA@>APSAAJLNQJEJCARAJPOPD=PEOAOP=>HEODA@ as a guideline for providing reasonable clearance between trees and conductors. -=NG=J@-Q>HE?PNAAO=NADANAEJ@AlJA@=OPNAAO ODNQ>O >QODAO=J@=HHKPDANSKK@URACAP=PEKJEJ LQ>HE?L=NGO=J@KJLQ>HE?LNKLANPU=PLQ>HE?B=?EHEPEAO =J@=HH=NA=KSJA@>UPDA?EPU KNPKSDE?DPDA public has free access.
&JQPEHEPU=N>KNE?QHPQNA QPEHEPU=N>KNEOPOSDKD=RA>AAJPN=EJA@PKOLA?ElA@OP=J@=N@OBKNHEJA clearance work.
Means of aerating the soil around a tree by removing and replacing soil in trenches made in a spokelike pattern in the root zone to improve conditions for root growth. 0AHA?PERANAIKR=HKBHKSANHEI>OBNKI=PNAAPKLNKRE@A?HA=N=J?AHEBPEJC
- 38 -

Reduction Reduction cut
Resistant varieties Restoration
Right-of-way (ROW)
Risk assessment Root ball
Root barrier Root collar Root collar excavation Root crown /KKP=NA Root Plate
Root protection zone
Root zone R-O-W
S
Scaffold branches Semi-pervious Surface
Silviculture Site analysis Soil aeration Soil amendment Soil analysis Soil compaction

Pruning to decrease height and/or spread of a branch or crown. Pruning cut that reduces the length of a branch or stem back to a lateral branch large enough to assume apical dominance. -H=JPR=NEAPEAOPD=P=NAPKHAN=JPKB KNJKPOQO?ALPE>HAPK ?ANP=EJ@EOA=OAKNLAOPLNK>HAIO
-NQJEJCPKEILNKRAPDAOPNQ?PQNA BKNI =J@=LLA=N=J?AKBPNAAOPD=PD=RA>AAJOARANAHUDA=@A@ R=J@=HEVA@ KN@=I=CA@
I=J=CAIAJP=J@LH=JPEJCPKNAOPKNA=HPANA@KN@=I=CA@A?KOUOPAIO !AlJA@=NA=KBH=J@ QOQ=HHU=HEJA=NOPNEL KRANKNPDNKQCDSDE?DQPEHEPEAO=NA?KJOPNQ?PA@ I=EJP=EJA@ =J@KLAN=PA@ KNPKSDE?D=??AOOEOCN=JPA@ -NK?AOOKB@APANIEJEJCPDAHARAHKBNEOGLKOA@>U=>N=J?D PNAA KNCNKQLKBPNAAOKJ=LNKLANPU Soil containing all (containerized) or a portion (B&B) of the roots that are moved with a plant when it is planted or transplanted. Membranes or sheets installed vertically in the soil to limit or direct the growth of tree roots. #H=NA@=NA==PPDAPNAAPNQJG>=OASDANAPDANKKPO=J@PNQJG?KIAPKCAPDANNKKP?NKSJ Process of removing soil to expose and assess the root collar of a tree. NA=SDANAPDAI=EJNKKPOFKEJPDALH=JPOPAI QOQ=HHU=PKNJA=NCNKQJ@HARAHNKKP?KHH=N See PNQJG=NA 1DA=NA=KBPDANKKPVKJA?KILNEOA@KBLA@AOP=HNKKPO PDAVKJAKBN=LE@P=LAN=J@NKKPOQJ@AN ?KILNAOOEKJ SEPD=@ENA?PEKJ=HN=@EQO>=OA@KJPDAPNAAPNQJG@E=IAPAN=PBAAP=>KRACNKQJ@1DA NKKPLH=PAEOPULE?=HHUNALNAOAJPA@>U=?KJ?AJPNE??EN?HA?AJPANEJCKJPDAPNAAOPNQJGSEPD=N=@EQO equal in feet to one-half times the number of inches of the trunk diameter.
0QNB=?A=NA=KBPNAANKKP?KJ?AJPN=PEKJPK>ALNKPA?PA@BNKI?KJOPNQ?PEKJ@=I=CA QOQ=HHUOKEH ?KIL=?PEKJ@=I=CA>AOP=??KILHEODA@>UBAJ?EJCKBBPDAAJPENANKKPLNKPA?PEKJVKJA NA=SEPDEJPDAOKEHLNKlHASDANANKKPOATEOPPULE?=HHUPDANKKPVKJAKBPNAAOATPAJ@O>AUKJ@PDA@NELHEJA See right-of-way.
Permanent or structural branches of a tree. %=N@O?=LA =CCNAC=PAKNLKNKQOL=RANPD=P=HHKSO=PHA=OPlBPULAN?AJP
KBOQNB=?AS=PANPK pass through the man-made material and into the underlying soil. Study and practice of the maintenance and growth of forests. !APANIEJ=PEKJKBPDA?KJ@EPEKJO NAOPNE?PEKJO =J@AJRENKJIAJPKB=LH=JPEJCOEPA See aeration. *=PANE=H=@@A@PKOKEHPKEILNKRAEPOLDUOE?=H ?DAIE?=H =J@KN>EKHKCE?=HLNKLANPEAO J=HUOEOKBOKEHPK@APANIEJAL% IEJAN=H?KILKOEPEKJ OPNQ?PQNA O=HEJEPU =J@KPDAN?D=N=?PANEOPE?O
KILNAOOEKJKBPDAOKEH KBPAJ=O=NAOQHPKBRADE?HAKNDA=RUAMQELIAJPPN=Bl? PD=P>NA=GO@KSJOKEH =CCNAC=PAO=J@NA@Q?AOOKEHRKHQIA=J@PKP=HLKNAOL=?A AOLA?E=HHUPDAI=?NKLKNAO
- 39 -

Soil texture Species 0LA?El?=PEKJO Specimen Tree Staking Stem Street tree Stress Structural defects Structural pruning Structural roots
Structural soil
Stub cuts Subordinate
T

/AH=PERAlJAJAOOKN?K=NOAJAOOKB=OKEH@QAPKL=NPE?HAOEVAO=J@ OEHP =J@?H=U

Taxonomic group of organisms composed of individuals of the same genus that can reproduce among themselves and have similar offspring.
!AP=EHA@LH=JO NAMQENAIAJPO =J@OP=PAIAJPOKBL=NPE?QH=NLNK?A@QNAO=J@KNOP=J@=N@OQOA@PK @AlJA=J@CQE@ASKNG
JUPNAASDE?DMQ=HElAOBKNOLA?E=H?KJOE@AN=PEKJBKNNAOANR=PEKJ@QAPKEPOOEVA PULA ?KJ@EPEKJ HK?=PEKJKNDEOPKNE?=HOECJEl?=J?A
Supporting a newly planted tree with stakes and ties.
Woody structure bearing foliage & buds that gives rise to other stems (branches).
1NAAOCNKSEJC=HKJCOPNAAPBNKJP=CAO AEPDANSEPDEJPDALQ>HE?OPNAAPNECDPKBS=UKNPDABNKJPU=N@OKB =@F=?AJPHKPO
Factor that negatively affects the health of a tree.
JUJ=PQN=HHUK??QNNEJCKNOA?KJ@=NU?KJ@EPEKJOOQ?D=O?=REPEAO LKKN>N=J?D=PP=?DIAJPO ?N=?GO KN@A?=UA@SKK@EJPDAPNQJG ?NKSJ KNNKKPOKB=PNAAPD=PI=U?KJPNE>QPAPKOPNQ?PQN=HB=EHQNA
Pruning to establish a strong branch scaffold system.
)=NCA SKK@U PNAANKKPOPD=P=J?DKN=J@OQLLKNPPDAPNQJG=J@?NKSJNKKPO?D=N=?PANEVA@>U secondary thickening and relatively large diameter giving form to the root system and functioning in anchorage and support.
-=RAIAJPOQ>OPN=PAPD=P?=J>A?KIL=?PA@PKIAAPAJCEJAANEJCOLA?El?=PEKJOUAPNAI=EJO LAJAPN=>HA>UPNAANKKPOEJPDAQN>=JAJRENKJIAJP?KILKOA@KB=JCQH=N?NQODA@OPKJA ?H=UHK=I =J@DU@NKCAHIETA@EJ=SAECDPN=PEKKB@ARAHKLA@=PPDA2N>=J%KNPE?QHPQNA&JOPEPQPA
KNJAHH2JERANOEPU &PD=?= +AS6KNG
Pruning cuts made too far outside the branch bark ridge or branch collar that leave branch tissue attached to the stem.
(v.) Pruning to reduce the size and ensuing growth of a branch in relation to other branches or HA=@ANOadj.
@KIEJ=PA@>UKPDANPNAAO >N=J?DAO KNL=NPOOQLLNAOOA@

Tap root Target Target (or natural) pruning Terminal bud Thinning Through-pruning Timber harvesting

AJPN=H RANPE?=HNKKPCNKSEJC@ENA?PHU>AHKSPDAPNQJGPD=PI=UKNI=UJKPLANOEOPEJPKLH=JPI=PQNEPU

-ANOKJ K>FA?P KNOPNQ?PQNAPD=P?KQH@>AEJFQNA@KN@=I=CA@EJPDAARAJPKBPNAAKN>N=J?DB=EHQNA
EJLNQJEJC PDAlJ=HHK?=PEKJSDANAPDAPNAAL=NPEONAIKRA@
-NK?AOOKB>N=J?DNAIKR=HPK=?DEARA=OLA?ElA@CK=HEJSDE?DPDALNQJEJC?QPO=NAI=@A=PJK@AO and in relation to the positions of the branch collar and branch bark ridge.
Q@=PPDAPELKB=PSECKNODKKP=LE?=H>Q@?KIL=NAPKH=PAN=H>Q@
0AHA?PERALNQJEJCPKNA@Q?A@AJOEPUKBHERA>N=J?DAONAIKREJCQJS=JPA@>N=J?DAO=J@HEI>OPK provide light or air penetration through the tree or to lighten the weight of the remaining branches.
/AIKREJC>N=J?DAOBNKIPDAIE@@HAKBPDAPNAA?NKSJPKLNKRE@A?HA=N=J?ABNKIQPEHEPUHEJAOOEIEH=N PK3LNQJEJC AT?ALPPD=POKIA>N=J?DKRAND=JCNAI=EJO=>KRAPDAHEJAO
The non-land disturbing activity involving removal of trees as part of an ongoing timber management operation. This activity does not include the grubbing or removal of stumps or the "pushing over" of trees.
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Topping Topsoil Transplanting Transplant shock Tree Tree Bank
Tree Board / Tree Commission Tree establishment Tree island Tree protection zone Tree Removal
Tree Save Area Tree value Tree wall Tree wrap Trenching

&J=LLNKLNE=PALNQJEJCPA?DJEMQAPKNA@Q?APNAAOEVA?QPPEJC>=?G=PNAAPK>Q@O OPQ>O EJPANJK@AO KN laterals not large enough to assume apical dominance.
0QNB=?AH=UANKBOKEHPD=PI=U>ANE?DEJJQPNEAJPOBNKI@A?=UEJCLH=JPO=J@>=?PANE=HI=PANE=HKBPAJ removed when lots are graded in preparation for construction.
Moving a plant to a new location.
-H=JPOPNAOOBKHHKSEJCPN=JOLH=JP?D=N=?PANEVA@>UNA@Q?A@CNKSPD SEHPEJC @NKLLEJCBKHE=CA KN death.
4KK@ULANAJJE=HQOQ=HHUD=REJCKJA
@KIEJ=JPPNQJG >QPOKIAPEIAOIQHPELHAPNQJGO =J@=I=PQNA height greater than 15 feet.
J=??KQJPI=EJP=EJA@>U=J=@IEJEOPN=PKN=J@BQJ@A@>U@ARAHKLANO =O=BKNIKB=HPANJ=PERA ?KILHE=J?APKPDAPNAAKN@EJ=J?A#QJ@O=NAPK>AQOA@OKHAHUBKNA@Q?=PEKJ=J@PDALQN?D=OA LH=JPEJC=J@I=EJPAJ=J?AKBPNAAOBKNLQ>HE?>AJAlPKJLQ>HE?LNKLANPU KNLNER=PALNKLANPUSEPDEJ= public easement.
CNKQLQOQ=HHUE@AJPElA@=J@AILKSANA@>U=PNAAKN@EJ=J?A D=REJCR=NEKQO=QPDKNEPEAO=J@ responsibilities related to the care and management of trees within the community.
1DA=?PEREPEAO=OOK?E=PA@SEPDLH=JPEJC=PNAA EJ?HQ@EJCOEPAOAHA?PEKJ OLA?EAOOAHA?PEKJ PNAA OAHA?PEKJ PNAAPN=JOLKNP OEPALNAL=N=PEKJ PNAALH=JPEJC ENNEC=PEKJ =J@IQH?DEJC=HOKEJ?HQ@AONACQH=N EJOLA?PEKJ LNQJEJC =J@KPDANJASPNAAI=EJPAJ=J?A0AA=HOKestablishment period.
"J?HKOA@LH=JPEJC>A@OQNNKQJ@EJC=PNAA OQ?D=O=>A@SEPDEJ=L=RA@=NA=
!AlJA@=NA=SEPDEJSDE?D?ANP=EJ=?PEREPEAO=NALNKDE>EPA@KNNAOPNE?PA@PKLNARAJPKNIEJEIEVA LKPAJPE=HEJFQNUPK@AOECJ=PA@PNAAO AOLA?E=HHU@QNEJC?KJOPNQ?PEKJKN@ARAHKLIAJP
JU=?PSDE?D?=QOAO=PNAAPK@EA EJ?HQ@EJC>QPJKPHEIEPA@PK@=I=CAEJE?PA@QLKJPDANKKPOUOPAI or trunk as a result of:
(a) 1DAEILNKLANQOAKBI=?DEJANUKJPDAPNAAO (b) 1DAOPKN=CAKBI=PANE=HOEJKN=NKQJ@PDAPNAAO (c) &J?NA=OA@OKEH?KIL=?PEKJ (d) Altering the natural grade to expose the roots or to cover the tree's root system with more than
EJ?DAOKBOKEH (e) =QOEJCPDAEJBA?PEKJKNEJBAOP=PEKJKBPDAPNAA>ULAOPO BQJCQOKND=NIBQH>=?PANE= (f) -NQJEJCFQ@CA@PK>AAT?AOOERA>UPDA?KIIQJEPU@ARAHKLIAJP@ENA?PKNKNJKPEJ=??KN@=J?A
SEPDPDAOP=J@=N@OOAPBKNPD>UPDA&JPANJ=PEKJ=H0K?EAPUKBN>KNE?QHPQNA&0
(g) -=REJC SEPD ?KJ?NAPA =OLD=HP KN KPDAN EILANREKQO OQNB=?AO SEPDEJ OQ?D LNKTEIEPU =O PK >A
D=NIBQHPKPDAPNAAKNEPONKKPOUOPAI=J@ (h) LLHE?=PEKJKBDAN>E?E@AOKN@ABKHE=JPOPK=JUPNAASEPDKQPlNOPK>P=EJEJC=LANIEP
J=NA=@AOECJ=PA@BKNPDALQNLKOAKBIAAPEJCPNAA?KJOANR=PEKJNAMQENAIAJPO O=REJCJ=PQN=HPNAAO and/or preserving natural buffers.
LLN=EOA@ IKJAP=NUR=HQALH=?A@KJ=PNAA
4=HH?KJOPNQ?PA@=NKQJ@=PNAA SEPDPDAKNECEJ=HCN=@AN=EOA@ PKLNKPA?PPDAPNQJG>UI=EJP=EJEJCPDA original soil level and to provide oxygen and water to the root zone.
Material used to wrap the trunks of newly planted or transplanted trees.
)EJA=NAT?=R=PEKJ KBPAJQOA@PKEJOP=HHQPEHEPEAOKNOPNQ?PQN=HBKKPEJCO?=J?=QOAPNAANKKP@=I=CA compare to horizontal boring or tunneling.

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1NQJG=NA Tunneling
U

1N=JOEPEKJVKJABNKIPNQJGPKNKKPOSDANAPDAPNQJGATL=J@OEJPKPDAOPNQ?PQN=HNKKPONKKP=NA
HPANJ=PAIAPDK@PKPNAJ?DEJCBKNEJOP=HH=PEKJKBQJ@ANCNKQJ@QPEHEPEAO?KIL=NAPKhorizontal boring and trenching.

Understory, understory tree

1DAH=UANOKBPDABKNAOP?=JKLUPD=PATEOP>AJA=PDPDAKRANOPKNU=PNAAKNPNAAOLA?EAOSEPD=?NKSJ that exists in or has the potential to reach only to the lower to middle layers of the forest canopyusually under 40 feet in maximum height.

Urban forestry

Management of naturally occurring and planted trees in urban areas.

Utility line-clearance pruning
Utility pruning

0AHA?PERAHUNAIKREJCRACAP=PEKJ=J@RACAP=PEKJL=NPOBNKI=NKQJ@QPEHEPUHEJAO LNEI=NEHUPKGAALPNAAO =J@>N=J?DAO?HA=NBNKIKRANDA=@HEJAO=J@AMQELIAJP=HOKQOA@BKNKPDANI=J=CAIAJPNA=OKJO
Pruning around or near utility facilities with the goal of maintaining safe and reliable utility service.

V

Variety
Vegetation management Vertical mulching
Vigor Vitality V-pruning
W

Naturally occurring subdivision of a species having a distinct difference and breeding true to that @EBBANAJ?A?KIL=NAPKcultivar.
*=J=CAIAJP=J@?KJPNKHKBRACAP=PEKJPK=?DEARAAOP=>HEODA@CK=HO=J@K>FA?PERAO
!NEHHEJCRANPE?=HDKHAOEJPDAOKEH=J@lHHEJCPDAISEPDI=PANE=HOOQ?D=O?KILKOPA@IQH?D CN=RAH LANHEPA LA=P KNO=J@PKEILNKRA=AN=PEKJ=J@OKIAPEIAOBANPEHEPU
,RAN=HHDA=HPD?=L=?EPUPKCNKS=J@NAOEOPOPNAOO
,RAN=HHDA=HPD=>EHEPUKB=LH=JPPK@A=HABBA?PERAHUSEPDOPNAOO
Providing clearance from utility lines by removing branches from the middle of the tree crown such PD=PPDA?QP=LLA=NO=O3OD=LA@SDAJREASA@BNKI=OLA?El?=JCHA

Windthrow Wire basket
Wound dressing Woundwood
X

Tree failure due to uprooting caused by wind.
Type of metal basket used to support the root ball of a balled and burlapped tree or a tree dug with a tree space.
Compound applied to tree wounds or pruning cuts. Rarely recommended.
)ECJElA@ @EBBANAJPE=PA@PEOOQAOLNK@Q?A@KJSKK@ULH=JPO=O=NAOLKJOAPKSKQJ@EJC?KIL=NAPK callus.

Xeriscape Xylem

2OAKBLH=JPI=PANE=HOQOQ=HHUJ=PERALH=JPO
=J@LN=?PE?AOPD=PIEJEIEVAOH=J@O?=LEJCS=PANQOA PANIBKNAJRENKJIAJP=HHUBNEAJ@HUBKNIKBH=J@O?=LEJCPANIS=O?KLUNECDP>U!AJRAN4=PANEJ
*=EJS=PAN=J@IEJAN=H?KJ@Q?PEJCPEOOQAEJPNAAO=J@KPDANLH=JPOLNKRE@AOOPNQ?PQN=HOQLLKNP >A?KIEJCSKK@=BPANHECJEBUEJCEOQJE@ENA?PEKJ=H?KJ@Q?POQLKJHU
?KIL=NAPKphloem.

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