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UDCpGB/T50921-2013Codefordesignoffast-growingandhigh-yieldingtimberplantationengineering2013-09-06~~2014-05-01~Mt!Codefordesignoffast-growingandhigh-yieldingtimberplantationengineeringGB/T50921-2013j:~fff)fl:00**1tmi1ttli$f1:9=11#.AJ~~~fO0011ffij-fO#JX~Jli9:$~frBAA:2o14~sjj1B2013~t*r+-t1~ihi_±t.-r.ElEl27.r--:'ii:·r,-=-t-j\.~/,lfiJ~L~~1:/J\fttjj~*r-m*~**I~¥i~i.t~.mmGB/T50921-2013*9i111it~1JtHJUXfttHJUXIXXJ±Jl:!Jtl::JU~CrtI[fliJJiXIX~*~itP.=Itl!Ufl11~H~~JciiCJ~3hf:rll~il~~F~:100038rhi:?;·:Colo)63906433C~fiffiD¥Ir'*~HmJtJ?~')i_hriJTft1r.·~~1PJ'&;*GpM}IJfQ~-frf5&0Ii]Gpij1J850mmX1168mml/321.875Gp11t113ff2o141:f4f]~1h&2o141:µ4J]~1i'XGpXIJ1J*~Jt--K~}:1sso242•436!E1fr:12.00jG#&t3Z.pJT~~t3Z.~'9E11;iX~f~~i:rs:Co1o)639o64o4~nii.flJ~ooMfriJJMt,irr'Ji*uHiJt&$iJtrJ~m13s~1±J%:lfiX~Jl~$*T~/(fl00*f/J\11t((~~$Fm!fi;f;f\IfM~it1J[m))8~0~JJ\!.tttif((~±~Fffl!fJIf*_I.fi~ittJ\!.fil))jg00*;f~if,~~jgGB/T50921-2013,R20141t5Jj1B®~nfilo*t~mEBft$;f~iiJ£~JI1iJf'Ji.pjf~ii~Rrp00tr~utH#&filH#&litff0J:fl$A.~At~nr@1im~ntJOC~mt~~~2013~9FJ6B*~]trl:~*t!J~Jtia:$((!I:.-Tfp'JX20051FIfiJ!ia:fijii~]ll1iMiT.J~iTit~tlcm=ttU89JiH~»cJlf~c2oosJ124%)89~*,E800%:f*~JmiffiJif~]~1Jia:itr?1G~rPJ:ft;J(rfJif*~WJ~Nitr?1G~rnJ~ifltl5Gn,Xo1£*~]trL~ifltli1fi9=t'~ifltl~JI~[Hfjffijif1iJf?it'iAJtJh!,£ti$1F*~~$FfflMif*T~Nrr89~~~~'*1~fil*~*-~&~~,iiJ§~'fffifiEf~0*~]m~?t9~fD3~J~fL~oj:~r*J~§t~:Jh!,)J!IJ,7f\:i£-,~itl]a]if,Jh!,flfil[!}Nit,rgmif*I.fi&it,~if*~1?IfiNit,WC~Ifi&it,fJL~s.JWC~N4k&it,Nitx1tt~lln,X~o*~mrnttm~~Jt&$~~~~,oo%if*~Jm~NB~~J_IIfF,00%:f*~JmiffiJ~~]~tlNitJ?1G~N~1*1i7f\:r*J~89Mf-fo*~]mt£1A1-T:ctfi9=t'~D'JX!Jn~~1~Bj:fJ]*~JEZ~'if~~mfDJ!i)l~~00%*1c~JmiffiJ~~]~tl~itJ?1G(±fil±ll:::ft;J(rfJ*~fKfnfJtt*m1s%,m~~~~=100714),~1it~Fn1~irat~~0*~]mj:~Jf!.1iL,~~Jf!.1iL,i:~~1itA.fDi:~'fftifA.:::Et,fU~fli:00%if*~fiUiffilif~JL!Gtl~it~~t,fij~f:u.::it;J(mif*~WJ~Nit~::E~~l!A:I*1=f1r~fx!Ji~ram1~~5!E±J~\7K-T~tl-1:.~1*~t±~~x!J~~~fffi*~tmfF~x~.ll.'Alt/JP~*~ilr~E~~~~~±*-;~\~~t-#~~$~A:Ji~iJTtm~~f#ij00_r~~14*_ill[~·~'-c:z]J*~585Rf!j\_=tt*8Jjfljf~1JjiJI\'\*Erf.JJt1JJ!U•••.•.••..................•••••..•........•.••••.........(1)2*i-ft.........................................................(2)3~%iJilfl~.........................................................(3)4Jg,-¥0000i&lit...................................................6)4.1-f.l)tt~).:£••••..•..•.•.•.•.......•.••..•..........••••••....••••(6)4.2,ftl,~0000i)i:it...................................................6)4.3Jg,~00iJtit00ttl00.............................................(7)5f!f:@;fif\If_~~it················································(9)5.1-f.l)tt~).:£.••..•••••.......••..•.•.••.•..........•••••........•.(9)5.2*JT~J!j:_$yr.ffltJ;tt\Iti~it·································(9)5.3).:£rPJBJ[Jg······················································C13)6j'J;fif\'f*tftIfi~it·············································c14)6.1-f.i)tt~JE......................................................(14)6.2~*~*......................................................(14)6.3tf\~~~j:_~~~ti.............................................(15)6.4)t{filj(_~~~tiIti·············································C15)7we~Ifi~it···················································c17)7.1-f.i)tt~JE......................................................(17)7.2~:t?m~......................................................c17)7.3mN*Itlf......................................................(18)7.4A{filIti......................................................(18)8;fJLJl!=3WC~~1}~it··········································c2o)9~itX.14gil~...................................................(21)9.1-f.l)tt~).:£......•........••.............•.........••......•.....(21)9.2i:Q:iti.5t~-=ts•••••••••••••••...•••••••••••••••••••••••••••••••••(21)9.3~it00~ft......................................................(22)•1•g.4Mi14............................................................c23)!)#JI{AJ!~$FfflfJf;f\Ifi~itiJaJ~l!Ir*···············c24)!)#JI{B~€!f*LKk~±~J!~$FfflfJf*fkt#~t~·········c26rfflJI{C~€*1f\LK~±~J!~$FfflU!f*fkt#€*1f\~li*JJf!Wit...................................................c29)*~J\!m:ffliPJiJl8J3......................................................c32)'11fflt~ii!gJI{.........................................................(33)ffl:~-XiJl~·························································C35)•2•12345ContentsGeneralprov1s10ns.............................................(1)Terms............................................................(2)Comprehensivesurvey..........................................(3)Generallayoutdesign..........................................(6)4.1Generalrequirements..........................................(6)4.2Generallayoutdesign..........................................(6)4.3Generalgraphicdesigndrawing..............................(7)Plantationprojectdesign....................................(9)5.1Generalrequirements··········································(9)5.2Designfornewtimberplantation······························(9)