DATA FROM FELLED TREES 



Data for each cut section are obtained from cards sorted into sequence beginning 

 at the base of the tree and proceeding up the stem. The format of these cards is 

 specified on the PROBLEM FORMAT CARD. However, the data sequence required by the 

 felled-tree version of the subroutine READIN included with the program is as follows: 



Plot number 

 Tree niamber 

 Species 

 D.b.h. 

 Age 



Height 



D.o.b. 

 D.o.b. 



D.i.b. 

 D.i.b. 



DBT 



] 



] 



Same for all sections in one tree, 



Height above ground or length of piece. 



Outside bark diameters of upper end 

 of the section. 



Inside bark diameters of upper end of 

 the section. 



Double bark thickness.^ 



Wl 

 Bl 

 Jl 



W2 

 B2 

 J2 



W3 

 B3 

 J3 



1st cull dimension of 1st cull column. 

 2nd cull dimension of 1st cull column. 

 Shape code of 1st cull column. 



As above for 2nd cull column. 



As above for 3rd cull column, 



BW 

 BB 

 JB 



Data to be transmitted to user-supplied 

 subroutine to calculate board-foot 

 deductions for defect. 



IFORK 



A fork indicator here means that a fork 

 leaves the bole at this level. 



IG 



Grade of piece below the measurement level. 



The units of measure and other alternatives for the above data depend on the 

 options selected by the appropriate punches on the first problem option card, which 

 was described under the heading "Selection of Options." In the above list, plot number, 

 tree number, species, and age are treated as integer data in the computer program. 

 Jl, J2, J3, JB, and IG are treated as alphanumeric data. The remaining variables are 

 stored as floating-point data. 



DENDROMETRY DATA FROM STANDING TREES 



Gross volumes of trees measured with an optical dendrometer can be computed with 

 the same options by replacing the felled-tree version of the READIN subroutine with the 

 corresponding dendrometry version of READIN. This latter program accepts tree data 

 measured and punched to the specifications used in Grosenbaugh ' s STX program with the 



DBT does not need to be recorded if it is adequately described by D.o.b. minus D.i.b. 



10 



