50 



MISC. PUBLICATION 11, U. S. DEPT. OF AGRICULTURE 



Table 2. — Diameter growth for 30-year period after cutting 

 [Based on 500 increment borings taken on stand cut over 45 years ago] 





D. b. h. in 50 years 







1 



D. b. h. in 50 years 







rs 





V. 



1 



•3 i 





^ 



Present d. b. h. 





^0. 



u 





•cJ 



Present d. b. h. 





>.<D 



s 







(inches) 



^ 



.s 



tfl 



u 



s 



(inches) 



q 



.g 



j_i 



a 





p< 



g p. 



ca 





© ll 



p. 



id" 



"^ 



<a 



S 





(4 



® ^ 



60 



S 



a 





<-■ 



«^ ^ 



S 





S 



g o 



S 



h 



8 





bO 



^a ^ g 



Si 







^ 



^ 



fi 



^ 



Inches 





; ^ 



1 



^ 



fl 





Inches 



Inches 



Inches 



Inches 





Inches 



Inches Inches 



Inches 



Inches 



4 



16 

 18 

 22 

 24 

 26 

 28 

 30 

 32 

 34 

 34 

 36 

 38 

 40 



14 

 18 

 20 

 22 

 24 

 26 

 26 

 28 

 30 

 32 

 34 

 36 

 36 



14 

 16 

 18 

 20 

 22 

 26 

 28 

 30 

 32 

 32 

 34 

 36 

 38 



16 

 18 

 20 

 22 

 24 

 26 

 28 

 28 

 30 

 32 

 34 

 36 

 38 



12 

 14 

 16 

 20 

 22 

 24 

 26 

 26 

 28 

 30 

 32 

 34 

 36 



30.... 



32 



34 



36 



J 42 

 .! 44 

 -1 46 

 . 46 



- 48 

 . 48 



- 50 

 . 50 



:l ll 



J 



38 

 40 

 42 

 42 

 44 

 46 

 46 



38 

 40 

 42 

 44 

 44 

 46 

 48 

 60 



40 

 40 

 42 

 44 

 46 

 48 

 48 



38 



6 



40 



8 



42 



10 . 



44 



12 



38-. 



46 



14 



40 



48 



16 



42 



44 



46 



48 



18 





20 







22 



48 



50 











24 









26 



52.. ! 



i 





28 



54 











i 





Table 3. — Stand on average acre — cut-over land 

 [Basis, 120-acre strip] 



D. b. h. (inches) 



Sugar pine 



Western 

 yellow pine 



Douglas fir 



White fir 



Incense 

 cedar 



Total 







Number 



Number 



Number 



Number 



Number 



Number 







of trees 



of trees 



of trees 



of trees 



of trees 



of trees 



4 





0.44 

 .34 

 .16 

 .30 



0.63 



.47 

 .30 



.27 



0.73 

 .99 



.71 

 .63 



1.25 

 1.19 



.83 

 .83 



0.30 

 .39 



.14 

 .34 



3.35 



6 





3.38 



8 





2.14 



10.- 



Subtotal 



2.37 





1.24 



1.67 



3.06 



4.10 



1.17 



11.24 









12.. 



.33 



.24 



.34 



.46 



.36 



1.73 



14 



.20 



.40 



.44 



.52 



.55 



2.11 



16„ 





.19 



.38 



.32 



.30 



.28 



1.47 



18._ 





.18 



.21 



.28 



.16 



.20 



1.03 



20.. 





.11 



.17 



.26 



.22 



.33 



1.09 



22.. 





.17 



.22 



.25 



.36 



.20 



1.20 



24.. 





.19 



.14 



.23 



.24 



.14 



.94 



26.- 





.16 



.12 



.18 



.20 



.07 



.73 



28.- 





.07 



.09 



.10 



.11 



.04 



.41 



30.- 





.12 



.06 



.09 



.07 



.10 



.44 



32.- 





.10 



.03 



.08 



.06 



.07 



.34 



34.- 





.06 



.02 



.03 



.01 



.01 



.13 



36 





.01 





.01 



.01 



.01 



.04 



38 





.03 







.01 





.02 



.06 



40 





.03 









.01 



.04 



4? 





.03 







.02 





.05 



44 _ 









.00 



46—- - - 





.01 





.01 



.02 



48 





.01 







.01 





Subtotal 



Total 















1.99 



2.08 



2.63 



2.74 



2.40 



11.84 





3.23 



3.75 



5.69 



6.84 



3.57 



?3.08 









