Historic, archived document Do not assume content reflects current scientific knowledge, policies, or practices. hie j a i ; i i} i" ; ib “ \ y, ng ; nA ite “TABLES FOR APPROXIMATING VOLUME GROWTH OF INDIVIDUAL TREES © , Paul D.Remp — ad M-E-Metcalf a Sy ¥ Pa Re) rt a 2 mag ey Es , a ‘ Wiese 2 J Ke ‘ €} % we SLED oes BA & =a = Sa aouiner es | Northern a AN SSERE Spence Rocky Mountain Forest © Range Experiment Station Missoula Montana Chas.L.Tebbe, Director UNITED STATES DEPARTMENT OF AGRICULTURE FOREST SERVICE Station Paper N*il March 1948 r : ? 4 M woes ml nl ie fi q ‘ i HN Ay a Cun ; had 1¥ WA 5 hs © Ohi A ' (Cah SAN + ee ttere = Pes nk ae TABLES FOR APPROXIMATING VOLUME GROWTH OF INDIVIDUAL TREES / By P, D. Kemp & M. E. Metcalf March 1948 1a4 : 10% % Srl yalietsoe ae CONTENTS IEARE TA ONCHUNG TE THONG 8s sc. Ra tot Nt Rene ERM aa STE ON SO GPa Le Volume growth tables Ponderosa pine - Western Montana Table 1 - Annual board-foot (Scribner) growth of trees by diameter class and radial increment. . Table 2 - Average annual board-foot (Scribner) growth percent of trees by diameter class and PBCULENL aa S 5 9 6 Oo. 0G 60 6 010008 Table 3 - Periodic (10 years) board-foot (Scribner) growth of trees by diameter class and Te AGelkaN MUA CT OMOTIG oie), vel iol sh el velar veh aein ony teiiieN te Western larch - North Idaho Table 4 ~ Annual board-foot (Scribner) growth of trees by diameter class and radial increment. . . Table 5 - Average annual board-foot (Scribner) growth percent of trees by diameter class and TO CHIEIL slin@iMeMneIMes 55 6) 6 Go G6 Siromivenins Table 6 - Periodic (10 years) board-foot (Scribner) growth of trees by diameter class and ie@ieliail alaweimeimsiateg "G50 6 ids 6 6 G0 Ooo 4 White pine - North Idaho Table 7 — Annual board-foot (Scribner) growth of trees by diameter class and radial increment. . . Table 8 - Average annual board-foot (Scribner) growth percent of trees by diameter class and BaGarailpaMereme4;nitis el elves) silivetnaten ici (ehaite Table 9 - Periodic (10 years) board-foot (Scribner) growth of trees by diameter class and ieelolalelll ‘alineieenteionGg 5) o 56 6 8 45/6) 6 0 6) 6 Ponderosa pine - North Idaho Table 10 - Annual board-foot (Scribner) growth of trees by diameter class and radial increment. . . Table 11 - Average annual board-foot (Scribner) growth percent of trees by diameter class and ipeobiel WMemEMIMGS 60 6 o00 6665.0, 040 Table 12 - Periodic (10 years) board-foot (Scribner) growth of trees by diameter class and WACHLEL WeleresMagho 5 G6 a lo oO lo O° 40165 6) co LO alse 2 13 14 at Tevee 4 ping-ft ov . : Snterty rollout) Tes eee eee iuieana a4 s a = Wes eng 09 arrest DAN {ecung iN eee Tt LS a , id i . ‘ ! oie, eae EA! ami’ a tp A Tey Paey Be eR Fig 1 o nm > ry F 7 Li? + tea | WA) ‘end als Bk ch a > ih aaa typhi 7 ae Taina ey fut AA “SY ann J bod ~ a! A eee rea ‘ardour. CO. YS fo ‘esa, ' orn Gea ee ig ae ay ee : (Stewersal (eoaes i cc : ny mt et 1 rE ae, | as ttoy +44 ” ras i sit. pee yy Se ft NS wees.” ny ‘ erty ; j . G wagner s+ rh) a ae 7 7 2 ? ? 4h ‘ UP aa = ') 7 2 , ie ria pai +4 : raw 8 J neh [isd ett Dey a Wa) irae cy aera tS ONLE iyieLriaod Conner’ re Ae : 0 OME Bis MPS aS ead) heey 1a el igttnn J i a hi : ie Wy ly Sie atl eee Te ¢ 4. wid vers) Maney. or ee wiht Mila sd grid: baal Ser ay RAS i ibility Se AY Sacre TABLES FOR APPROXIMATING VOLUME GROWTH OF INDIVIDUAL TREES By P. D. Kemp and M. E. Metcalf Division of Forest Economics Introduction Foresters are frequently asked: How much has this tree grown in volume in the last 10 years, or, what is the current rate of volume growth? The answer to such questions usually requires rather complex computa- tions. To simplify this task a set of volume growth tables 1/ has been prepared for the following species: ponderosa pine in western Montana, and western larch, western white pine, and ponderosa pine in North Idaho. These growth tables were derived from average-height volume tables. Ap- plication of these tables requires only a diameter determination and a radial growth measurement either (1) number of annual rings in the outer radial inch, or (2) the number of years (rings) in a specified radial increment in inches, Field checks show that the growth of single trees can be determined from the tables within 15 percent of a precise determi- nation two out of three times. The tables express volume growth in three wayss 1. Annual board-foot (Scribner) growth of trees by diameter class and radial increment. 2. Average annual board-foot (Scribner) growth percent of trees by diameter class and radial increment. 3. Periodic (10 years) board-foot (Scribner) growth of tress by diameter class and radial increment, To facilitate the determination of growth of trees differing in diameter from the midpoint of the class and for growth rates between those in- dicated, the growth should be plotted over d.b.h. and curved in ordinary cross-section paper. This will not give a precise determination for the individual tree, of course, because it still does not take into account variations from average changes in height, form and bark thickness with changes in diameter. Nevertheless, the curved volumes and tables permit useful approximations of the volume growth of individual trees. 1/ Copies of the 12 tables included in this paper are available in pocket size (5" x 74") and may be obtained upon request. aoe uP ina ini tit ome ene yps tbe ae: cA ie ee sonal tant “ 28; 25: 23: 19: 15. 1; 9: &: Meee. 247: 62 40. bl; 35. 31: 27: 25) 21, 16, 12,10, & 6 Be 1,649 266 66 53) : hh 38 33 30 : 27. 22. 1g. 3: LL. 9: eee oal 28), 70 56 47; UO. 35. 31; 28: 23) 19; lh, 1; 9: 4) 7 eee 21 202) 173) eNO) = 1h 2) 0361 G20. 20% 2Ne 198 152 12. 10, 97 pomeaepil2t. 299 =-75 2 60: 50s 43): 37 : 33 2 30: 25: 20: 152 12: 10: 7 2D 9 DSi 285) an 60-g BO 6 fle) cosine ce) o Fon eon upone imma oba. 1 Jhanetes dnerement : : : : : 3 : : : , : pemmyear (inches) 92.50 204012933 3229) 2.25 9.22) +520: 217. 132.10: 08-072, 595 Years to attain next : : g : : = : : : R : g 2 memecudtancter class: 4105 3) 60s (7 20718 89 2s WO: 1235s 20: 25: 30s. 40 iy) The average gross volume from curves based on cruise estimates for some 35,009 ponderosa pines in ponderosa pine stands of western Montana. 2/ The average annual grcwth in developing 1 inch in radial increment or 2 inches in diémetral increment. Data are rounded to the nearest board foot. ae 7 i 6 tat ot oe AES Seer ps : emery S mek, bat tome te e yy f H) ; " et chirped ts i aa 4 ‘ fn : H * Po y ae eh meeps ty i. ower . le hel eae Le, Inte price epee! ce ple mm ih in in she Se pres t cr : , sma Lemar at a" | q f 7 ‘ ieee lat eek Newer 2 on = -— Ss ee oh Vie San Pe Bie. ‘ we — - a = ‘ad . ail sw a 4 , £ i ; - r 4 ' ad < 7 * i - . " . f j . - ’ ° ‘ ‘ 5 ; ‘A ‘ > 4 wes . q 4 ‘ - ‘ ‘ a ° a \ ‘ . 1 ‘ > * ~ e* ; Ms co ft) PT sigs é \ oe 4 . - a ° See at - + - 4 eee ; ts "5 tue dS » * : iu Bona } » a iy Ti Tha ud Rt) {ace al “end Danley nt: ol HI ORO Sa teey ity ote) becker iy ae Table 2, - Average annual board—foot (Scribner) growth percent 1/ of trees by diameter class and radial increment Ponderosa Pine —- Western Montana D.B.E. ane Gross annual grewth percent by indicated rings in the ouEeE -iists, inch (o.b. Mi ome 6: 33 3 KO) 8 FNS eT BO a BS o BIO) 8 ni) U2 2° SWAG 27) oe ILS; 9) | 1G annum Reyer siren ILS \O O» On Meare OF Gia ees Ti tamO 29. Ca Eh We eee as hs Gees! 7. MG. Bhs 6 Le Mee ol ae BERL 6 Rs he 3 ee ine eet Neb ks 15, Bike Bie ike hee Pee 8G 5 5 ey a 84 Diy OPO «10h eee ee 5 7, OR a Be 7 ee ee Sy 6G 1s Oe BY 1 28 ee he Rae 3 505 gh, Gon B 1 30 ee ss 5 oe, Dh ahh AOE i 32 19 5 4 5 3} 2 2 ; 2 2 iL ale ali di, ik 3h ene VC Wee is im 5, ake atl) ey me Gas yy 36 eee. Set eed ko ha . BON a Geet pe swt py ey 38 eae Pols On: 1. Tate, ea Be) 2 ey) ee REDE Om Net ds as Ons, a 1 I ee Bea ate 2) / aa 2) 1/ The simple growth percent, that is, the average annual board-foot growth dur- ing the period required for a 2-inch diameter increase divided by the volume at the beginning of the period. As indicated in table 1, the periods range from 4 to 40 years. All items are to the nearest whole number. 2/ Less than 1/2 of 1 percent. Items to the left of the heavy line are 1 per- cent or more. ee ey rene 8! Vy ay ray a crew ic an Ta ve } 7 La Pear aaa i s o ¥ , : 7 je 4, Pie We es vibe ee Pt a | gad vi Au Di l. ie i — am Gatos caeeiceasaialil a " yaad» terete at Ls n : (ay sagem ih iw A oa gas Came ae bs ae ' : "Srhatst +, hy ae ; ' mel aR ge it , ; Ps n ~~ Rh erent nnerenarannaer ee 3 ied F ae eit ee besten taal ay 0. we ere Ad sho ie » , bi ae oe pt i ii SDS eae ayy pte retina nc darn ip tet mas FRR Fr ot et RG we OER =~ Tae : i ies ne | ' a ; »@ ‘ r " . . . " . “ e 4 6 ie 7 i - f vo ’e > Ls Stan San,” ae t to he f ih ; g Fite (alah innate ee he a le a Et pt ie em A ie - | ne — = i ; Oe | ) . ‘ - Pury atts ier gee on be 3 ‘ " ; 7a Naa . | rie Se a > rae ; . As) hey i aie i" . 4 i } ¢ { gc! * e . + ‘ , ed ‘ if \ pean ra mite + f ay . van + ie ; - >) Su. is + * + 2 s : | : € / 8 2 E a som f Ya = ‘ us ' a « = . * red i e ~ , 4 4 f h > t 8 : Fj ‘ pi f * < P j ‘ - é 4 ¢ « ~ ‘ } é : . « ° = 1 . .< s ¥ a . ) on fi ¢ Cd c rs * th +4 Hai, vt a te * a | <* Ne o -= af he , ii iz A 4 4 rf i nl — * , , ; ‘ Hen te i Saye bani lo kl. eh ea nama kde tg breil * f i #1 fi F + F Pe \ ; i Bure ee PES arm lies ae LPLg BET ls SP ae ae Bua" Pepe Deng ash ova Wo febivibeeaaedor ataiel bh idakes «4 Tih bo hiper aati, whet ae ot) fet i.) + fat@o alii Gh sy) bo ite arias ane } bendtagnt oe ahaa Fee the 8d. Co-ed ETA ; , 7 ‘ } . 7 afra ‘a of . terns a i, Table 4. — Annual board—foot (Scribner) growth of trees by diameter class and radial increment Western Larch -— North Idaho : : Average: Volume: Gross average annual growth by indicated rings BEE: LSE Seren Ke b \: iMasS 98 slide ~s in the outer radial inch : *) svolumeL/; crease: Ig BO eho Per = CO NS Is LGR OG 258 S598 un) Inches - - - ---------- hoard festicmiGermibnenye 2 evade = eeu Bee 12 79 eek whe ke ith 167 Cee ins GH IER Gl eG de Sa fe es gene 1c 25 OSM OM 6) ile MID Oe Os a Ge Sea) ie Oe ee 18 DMN COROT aE PONY 18. iG memes MoO. Fer Ss Me de 2) eM a Oe 0) TT semana Woe 10s. 6E Ge be. en 8 22 SIC eE eG Oo . 19s miGue aS os dle Oe Fy) be eas 2h, ICT <8 TE SAB co OS a. SR Oy 6 IS UG. ay ean A Tiss ae 2 CONIC Seine On. 25) Sonlon MaE . 1385 Os 16.) (6a) Soe PCO wa Biark Ou cw Taso 6: 331 25 aaa, 23S MGs a2e Ge, Bo a Diameper increment .- : : : : : : : : : : : : per year (inches ) : ae ° Le) . 633 ° 229 : 52D : 522 © 20s lis pdb Sia sl De 8: Ds OS merce Athain Next « : : . : ; : : 9 3 : : higher diameter class: os Ss 6 s fae 3) Q Oa diols 12: L5s 20s ee SNR hud) l/ The average zrcss velume from curves based on cruise estimates fcr 1,957 west- ern larch trees in western larch stands cf Nerth Idaho. 2/ The average annual growth in develcping | inch in radial increment cr 2 inches in diametral increment. .Data are rounded to the nearest bcard foot. a Le cl a " ee ote, i. ali} mx r % ‘ ch oy 48 a ie ” . e | IT BEE Ss OP Re SA ae Oe be ey era i eenkice 4 S rr a eer ut q ea 4 anaes dene PCaaarrvabgl een re eae were yar No 4 4 - : 4 + * + * ¥ * i i , } 4 h j « * , * * + . ee > 7 + 4 7 é ; ? ie ‘ Pr 4 4 ~ a + a nm a ¢ = Nad ol 5 * it os ~* 9 \ " ri = id 4 * t | v r " - . Fe . . s* ‘ : ‘ . Aa < “* ¢ + % : ‘ s uf ‘ A : * . r ’ * \ ne *! ‘ 4 " ‘ ; 3 4 . . ~ , ‘ , * ® ’ ’ * 4 © - fs tk . m, } ‘ » che Tih e605 ‘ * a” a > o , 2 - . | > _ t . i a q tants et - ? * : Fe ( « A % an t - a “a 7 ‘ +x ; ry . : . * ¢ y * \) ‘ . he Ps ‘ 4 , ‘ . * , ' . a. - i 4° s, S Vigt MeL. ot at | + % 9 mee Z . ok UE SS eT eS»! ae ee ee erhalten ee at Sve “wv eit 1 eh 9 Hy is byes Ree). TPS ehh Gee hla Dio ore , J vie py weit il my deemed L6 tee at sah . A dened aan ey eben . 4 ; A oat ee Ad Tie) RS RAD ; ere tm eons sabe Baye SE sina ee oe Ws. baht | Farag a aN eal a a ‘ | So® ee ' * { * ‘* ee ‘ * iy > a ve o> Ane = Mesh ily 4 - ae = } Pie IN! | vd . ct * ‘ s ; meine é a i a i (tt ’ ei Pe yy ee a - . ey a bya 3 ’ . \ 2 a s ee J ‘ * \ at hl - ’ ’ * vp ‘ * ¢ 4 ® " - ‘ 0 ‘ * P . - a ‘ * ’ ‘ pS ae ae a ' 4 bd . ‘ « \ y * ‘ ; q 4 i rcent iy rowth of trees by diameter class and radial increment Table 5. — Average annual board-foot (Scribner Western Larch — North Idaho Gross annual growth percent by indicated rings in the outer radial inch Ih 8 TIMGROSs= coe SS ee Soe eo Se Se ee Seo oe oe eee eee SoS SS 1) WO) =| a 1 o (0) oO 4 > oO em Oe e OQ faa) e e O AwH ee 60 @@ WS ee oo 3h, 36 1/ The simple growth percent, that is, the annual average board-foot growth during | As indicated in table 1, the periods range from 4 to the period required for a 2-inch diameter increase divided by the volume at the All items are to the nearest whole number, beginning of the period. LO years. Items to the left of the heavy line are 1 percent Less than 1/2 of 1 percent. or more. 2/ a a Table 6. - Pericdic (10 years) board-foot (Scribner) growth of trees by diameter class and radial increment Western Larch — North Idaho a ee ne (o.b. )*reraver-: radial increment in inches ae 2888 696692050 82590 PI oom SL dB eG 2s Sil BL GOO SUAS se. oie BSOR HOR GSB B25 en a ee ee ee wa 68 Bote 68 tok, ¢ Whine pale 8 IB AMO G O59 SIS: he /S)B GIG HRS BG 25) 0) 22 ile : ok Paley ; 186 ILS) // 136 120 108 98 ; al: a: 49: 39: 32 25 18 4.92 Zouk 207 Li IL Sak IBV 120 : 109 90: 73: 5h: be 36 Zall 20 j 338 218 229 ; ie Lal 147 132 120 100: 30: 60: es LO 30 2a 501) 305 Zook ; an 183 161 144 ILS /3L 109: 38: 65: 52: 13 39) 2h Doo tl 33)3) ZS 230 198 LD 156 142 lie: 95: m1: 57: AZ ; 36 26 @.13 360 295 : 248 214 188 169 I?) 12h 103: 7: 62: il BS) ME ee), ily = 2672 230 ¢ 202. 181 + 16h ¢ 136s Won 82. 66: Shs Jal 7 01; fos = 33 295 2 259°: 232 : 210 2 W7h: WAls los: eh: 69 : 53 ee 31. 32 + 3631. Ble + 275°: 245%. 222 : Wehe WAGs Vid: 89: 73. 56 I/ The growth in developing to the midpoint of the indicated diameter class. For example, an average tree now exactly 14 inches d.b.h. outside bark, having a 10-year puter radial increment of 1.00 inch wiil have-grown 88 board feet during that 10 years. " ifs hal A ae belie hae) | agli Wiha oo ip tare, Betts te Ab > ine ; ie a is ave met, i, . — Annual board-fcot (Scrikner) grewth cf trees by diameter class and radial increment White Pine - North Idaho : Average: Volume: Gross average annual growth by indicated rings Pie OO, 186 eo esl + (211 Oe bree 2 in— vs in the outer radial inch : volumsl/: crease: : Inches - -------+-+--=- UG 20: : : : : : srduss Salt BeRSt iS ‘12 110 85 21 iby peau 12 : 11 9 8: Usline ie 31 3: 2 14 210 100 25 20: 17 : 14 : 13 Bt ec 10: Sarinny. 5: A 3: ep) 16 322 112 28 22 19 16 : 14 12 11; Dat B he ie 3 le LAS : 126 opt 25 21 18 16 14 13: LOR 6 5: : 2) 20 Dyk 143 ; 36 ; 29°: 2h 20 18 16 : Ly: 12: 10 I: 0 5 4 22 75k 163 at 515) 9 1tl 23: 20 ae sg UNG: aL 8: / 5: 4 : : : 2 : : : pene 1389 4 238 30 1,655 266 67 BS} [hh phen 3)s} 9. S\0) 27- 22: 18: 13; lls 9 i Be gso) 295 4 7uii59) 4 U9 1 b2 2 37 © 93: 30: 25, 20. 15: 12, 104 7 275 = G25 4 Bl 65 1 Sh 6 fda: 36: 33: 2 650) 55 2 69 7d) 59: Sls LL S39 255, 30: 24, 18, Ue 1, aS 5 SOG 3 895 6 68 6 Gp 4 GRR BoE Ss ANE 4 S54 Sey G5 Oa TRE aes TO GB) 9 Ger UES BG SAM iiSlg SS SEN BG Tule ae uO og SUBS) § aN Ea Diameter Sncrement per year (inches) ;.50 e e ® LJ e Diamsaihiog uasiaion, = ucos mys aa. los 08. 07.405 o ee ©0 98@ 088 890 80 C8 Years to attain next ; 3 : g 2 $ : : : 5 Ne higher diameter class: 3 Qa oun : ° elOi een MoO eos eon 1/ The average gross volume from curves Lased on cruise estimates for 102,089 white pine trees in white pine stands of North Idaho. 2/ The average annual growth in developing 1 inch in radial increment or 2 inches in diametrai increment. Data are rounded to the nearest board fcot. Age aan ae RN ina i Oyu erie. al . ae freee Sih ayy El ‘heres al pr ercent al, rowth of trees by diameter class and radial increment White Pine - North Idaho - Average annual board-foot (Scribner Table 8. SS al a a Ha aA aT A AA q i] q ! | ee e ee @ fom) N 5 a | I a0 m1 oN oN § i cq 4 | ee @ ee oe uo) ~ WN eee wo ee ee @6 ee oo “a oO so +t Ko Be = ' N 5 3) ° 5 ( eo ee ee ce e6 a) co wo -+t are : N ts) ( =) q \ oc @0@ @0 08 ©8 @0 @0 00 ee se C0 00 08 88 68 @0 e6 ef 998 ee 0 ® @ —t on LN —t (oa) mr NN N N N N N N Cn | a oO & A on & rf A & ee 02 00 8 €0 00 @0 00 @8 00 G0 08 ef 09 60 C0 26 00 28 689 00 00 06 08 08 08 be 00 60 » o 50.0) (2) be) —t —t * oY N N N N N N N N fat fal & oN a 4 (eo) (0) © ai ee @0@ 8@0@ @e@ @0 88 @0@ 08 @0 80 60 60 86 @¢ @0@ 8902 060 80 88 @0 86 €6&@ @0 00 08 820 @0 66 0 Bo ~ Ww oa) NN a aN. a eN- a0 t 3 | oa 2 2 ne =| | ee 0 @@ @8@ @e 98 08 08 @6 88 80 @6 88 08 88 882 ee 98 88 €0@ 88 8 08 O08 80 8 08 G8 880 2 t et 2) 0 Se) Ya —t CY on oa) on fon) N N N N @0 00 @0 00 00 @8 e@ 86 88 08 80 06 08 ee 80 06 00 Cc 02 08 08 G0 20 00 G6 80 oe ee ce 2) ~ WN DBO Ye WNW SF FN NH NA NN NUN N 3 J uw on | i ‘] eo @0@ @¢ e6@ @0 08 ee @0 ee 00 00 00 00 08 00 60 0 @e 00 08 88 a0 oe 00 80 90 of 8 Cf I © co | wa Oo Mmm +t +t SF tn nn ~m F re) co @e 00 00 ee 00 08 00 08 60 00 60 00 08 ee 08 00 eo 08 00 08 80 00 06 08 08 80 06 ce 00 Fane eN Cy O™E neo ee Be 8On SON INRA tine ab a at 4 00) N ot ot ee ee eae i] ec 02 @6 ee 08 89 0@ 08 ee 90 00 se 28 0 88 08 @2 we Ge @0@ 008 ee 00 Ge 06 ee ee ee & o I (2) ao (ony on N 520) Vay N o O~ ie) ~- wo wm tt 5 1 @ ~t On uN oY (on) N N N N ao a ct a co Cm 4 5 oO} | oY Ont & > (>) ie | @e ee ee ee ee @ e @e @0 ee @ e e e ee ee ee @ @e @ e e ee @ eo @ e e o-™N ¢p) (ae 0 ® e Q & N +t Oo io0) oO N +t so he) (2) N tt oO © (@)} Aw~ IH Items to the left of the heavy line are 1 percent Noe As indicated in table 1, the periods range from 4 to the period required for a 2-inch diameter increase divided by the volume at the All items are to the nearest whole number. beginning of the period. 40 years. 1/ The simple growth percent, that is, the annual average board-foot growth during or more. 2/ Less than 1/2 of 1 percent. en ane ee aye he A eet A NB He iam pli a ty 9 Pakage, "ae «. n i bene oe H epiecteg yeti # SALE. PHT REESE 8 hey teeth pe. Pe Mie dps Went ies spe Devs 4c f ~ + Sathempeseemel 4 i t ' ¥ } , ‘ i ' : es Ae ae oom) > quae " 4 a wits woe. . ae Rte e ~ VAD Grihe od } ete | oolle y ida hap hen a ee cys Ne PRL NRRL SCE rR RTND afoul ib ae api ‘ he 1 th at ari 5 we Licht! here bata De: b's eh. r spay an iene bg Jeans ey. at 's fe a ios. 1) Ler ND Table 9. -— Periodic (10 years) board-foot (Scribner) growth of trees by diameter class and radial increment White Pine - North Idaho 12 : 2.75 : 109: 106: 103: 96: 92: 8 : 85: Tl: 57: 43: 3h: 28: 21 MureOO = 198: 185 : 157: 136: 121; 110; 100+ 83: 67: 50: 40: 33: 25 Me ey - 25h: 22179: 155: 137: W221 9h: 7: 562 5: 37: 28 ‘Ae: 5:h7 : 288: 238: 201: 17h: 15h 2136: 1261105: Bh: 63: 50: 42s 32 20: 5.91 : 325 2 269: 227:1972175:157: 1432 19: 96: Ms 57: UT: 36 22: 6.28 1 369: 306: 259: 22h: 196: 178 11632132 M0: 82: 662 Ske A 2h : 6.57 + 4202 349 : 295 2 2562 227: 20h: 186: 15k: 125: 932 The Gl: hb 26 : 6.82 : 479 : 397 336 : 291 257 : 231 211 175: ua: 105: 8h 70: 53 26: 7.0h + 5422 AO : 379 : 329: 291: 261 : 238: 198: 159: 119: 95: 79: 60 30: 7.30 : 609: 50h: 425: 368: 325: 292: 266; 221: 178: 133: 106: ea: 67 32: 7.52 + 680: 561: 473: 409 : 3622 32h: 295: 245: 198: 18: 11s: 97: 7% 3h : 7.68 : 753: 620: 523: 452: 399 : 357 2.325 : 270: 216: 163: 130: 107: et 36 : 7.87 : 828: 680: 573 : 495 + 436: 391 : 355 : 295: 238: 178: 142: 117: 38: 8.0, : 903: 740: 623: 538: 47h: h2h : 385 + 320: 258: 193: 15h: 127: 96 _40 : 166: 1 7: 10 295: 238: 178: 142s 117: 89 8.22 : ; > 672 V The growth in developing to the midpoint of the indicated diameter class. For ex- _ ample, an average tree now exactly 14 inches d.b.h. outside bark, having a 10-year outer radial increment of 1.00 inch will have grown 100 board feet during that 10 years. ig Tey Peotone eyes ie ermal “A pes Nala hi Pratl ; neg Wee, A Rin ssi ; sitassorm rh * nt Se eee es vi tess iW ce Lae, song. Noe Pps 2 me Sa tris a VWiegeu ree apd =o ee | pase : * i ; i ey tA * ne oa heU pe PBs . 8 es, = a a a ~ a. 4 ' a : i M > lie oa ’ ; 4a % a ‘ ig ; f gy t | , _ * ¥ : ~~ i r ‘ me ry ‘ ot 4 Ps / Tar *™ ‘oo y 7 A t 4 PORNO ik. OE GSN uit agar Pde A ae te. nal gt saa vue 7 atye mmatrei Val ark , heed as mn wtna dy: ae cliaaip wot so P 1. RES ies.) a, ry oy ye! in twothy il Basis Rs 1 Bis 1 bs eg Te hd Nh tes v ay, ! mae | cise ; , iit Me 4) Wee a teen ry Oe a Table 19. - Annual bcard-foot (Scribner: growth of trees by diameter class and radial increment Ponderosa Pine —- North Idaho ).B.H : Average: Volume: Gross average annual growth by indicated rings ee b Ve tree: in= : in the outer radial inch ee : volumeL/: crease: 9 JOR aR iL Re Boje (25a: sloe /KO) Inches - ----------=-=- Board foot 2/ (Scribner)- ------------ IO 8 h2 2 : Wea ot a ha stan 32's! 3 Wee Gon igen. 8. 7. (656. Sr lu 2 8 nD N ee eo ee nwo 1) 1 § 199 /a°) Gs TO) 6 1G GRE shiS alena A ce 1 4 BO g NCA 5 AS 4 Ac qual a ay qual) a abb-5 sO) BOM eMiooh oe). 32 1264 212 18 2 16) dy | ae ade pease) iss. 38 | G1 26 | 22; 19 | 17 = 15: 132 10. 2h 760 178 45 30 30 25 22 : 20 1s: 15: i: 26 962 202 Bal L0 34 29 Apes 20; 17: 13: 10: 28: 1,188: 226: 57:45:38: 32: 28: 253 23 19: 15: 1s 9; 30 AS 249 ; 62 510) Q he 36 Syl 28 25: 21: 7 12: 10: ee SO a @ e a eo Os a a sa 2) 320: 1,707: 270: 67: 5h 2 45 O39) ahs 30 e 27s een eye one Be 98, 291 : 73 2 58 | 49 | A2 : 36: 32: 2: 2h 19; iis) 3p 26. es 2,309: 311: 78: 62: 52 : 6: 128 toe 38: 2,639: 330: 83+ 66: 55 AO 2,987: 348: 871 701 58:50:43: 39: 35: 29: 231 17: lh: 12s SOus {00SS Cnet he ON OM LU i se Diameter Aenenene : : : ; ; A : 2 : : : : per year (inches) :.50 :.40 2.33 2229 2025 2222 :.20:.17: 013: «10: .08: .07: .05 Years to attain next : : i ; : : : é : igher diameter class: 4 ; MNO. seas ees : 10: 12: 15: 20: 25: 30: 40 1/ The average gross volume from curves based on cruise estimates for 12,229 ponderosa pine trees in ponderosa pine stands of North Idaho. 2/ The average annual growth in developing 1 inch in radial increment or 2 inches in diametral increment. Data are rounded to the nearest board foot. =2= id Dae ae 1 ui, a Table 11. - Average annual board-foot (Scribner) growth percent 1/ of trees by diameter class and radial increment Ponderosa Pine —- North Idaho the outer radial inch Gross annual growth percent by indicated rings in Inches:= = - = = = = = = = = = = = = —Percent- - - ----+---+-+-+-+-+-+-+--+-- 1/ The simple growth percent, that is, the annual average board-foot growth during the periods range from 4 to All items are to the nearest whole number, 3 the period required for a 2=-inch diameter increase divided by the volume at the As indicated in table 1 beginning of the period. 40 years. Items to the left of the heavy line are 1 percent 2/ Less than 1/2 of 1 percent. or more. A132 Table 12. — Periodic (10 years) board-foot (Scribner rowth of trees by diameter class and radial increment Ponderosa Pine — North Idaho s1.11 :1.00 : .83: Pee ME CeenOs im oS sO) 2). Osos 253) 20: 15: 2s) Oss Peon O61: Tl: 63: 58: 53: 50: her 3h: 25: 20: 17 13 We 2.59; 151: 126.10; 97: 89: BL: 76: Gh: Sl: 38: 30: 25: 19 We. 5.64 : 2031 178 : 153.1135: 121: WO: 102; a5: 69: Sl: Al: dhe 26 BM 4.10 7 268 ; 230.1 196 2 172 2 153 + 139: 128: 106: 86: 6h: 51: M2: 32 22: e292 3322 261: 239: 208: 165: 167: 153: 127: 103: 77: bl: 50: 38 2h : e552 395: 331: 281: 2hh: 216: 195: 178: Us lig: 89: Ts 58: hh 2: 4.85 + 456: 380: 321: 279 : 2h7 : 222 : 202: 168: 135: 10l: Sl: 67: 50 28: 5.17 2 517: 4282 361 2 313: 277: 2b8 : 226: 188: 151: 113: 90: 75: 56 30: 5.31 + 576: 475 + WOO : 346 306: 27h : 249 : 207: 167: 125: 99: 82: 62 32: 5.37 : 632: 519 : 437 1 377: 332: 297: 270: 225: 18l: 136: 108: 89: 68 3h: 5eh6 : 6862 561: 472 KOT : 358: 320: 291 : 242s 195: ub: 6: 96: 73 36: 5.45 : 737: 602: 506: 436: 384: 343 2 311 : 258: 208: 156: 124: 103: 78 38: 5.39 : 787: 641 : 538: kOh : HOB : 364 2 330: 27he 221: 165: 132: 109; 83 Mee 5.568. 833; 678 + 569 + 490 + 43] + 3A: 3h8 : 17h: 139 115: 1/ The growth in developing to the midpoint of the indicated diameter class. For ex- ample, an average tree now exactly 14 inches d.b.h. outside bark, having a 10-year outer radial increment of 1.00 inch will have grown 50 board feet during that 10 years. SUAS nt . n Mi R ss ' ih) a. Y 5 iu rn Abe f, a | eat t ee ee i, == one | aes fo " r ye Fes ‘ ort We io is > . | Pa et ' P hI 7 } h ml + * i, 7» T iat ; at a i 4 Arh ’ 4 i f 4 iy . i f my) a cuen t > ‘ = een ayy ay i. i € : wg 4 i. ne j Pee DO A tat CARR) HHA diem rae moh i aul Naina 8 em 1 bons tht le Rh an sit Y fob Be ee eee ay Ce ee a i ee * Sing 3 10 LIST OF PREVIOUS PUBLICATIONS IN THIS SERIES *A preliminary study of root diseases in western white pine, by John Ehrlich, October 1939. *Possibilities of partial cutting “in young western white pine, by BE. F. Rapraeger, January 1940. Blister rust control in the management of western white pine, by Kenneth P, Davis and Virgil D. Moss, June 1940. Possibilities of wood—pulp production in the northern Rocky Mountain region, by E. F. Rapraeger, March 1941. Results to date of studies of the durability of native woods treated and untreated, by C. N. Warnes revised January 1946. \ Changes in Benewah County forest statistics, by Paul D. Kemp, July 1947. A guide for range reseeding on and near the national forests of Montana, by C. Allan Friedrich, October 1947. Pole blight - a new disease of western white pine, by C. A. Wellner, November 1947. Management practices for Christmas tree production, by C. A. Wellner and A. L. Roe, November 1947. The merits of lodgepole pine poles, by I. V. Anderson, November 1947. *Out of print. Loan copies may be obtained upon request. SARIN ss st Sarihty, me ek. av fon 2, ee SO Say D> Ry _ sy,