0.5 — Any tree where the image is dis- 

 placed exactly the width of the 

 tree: 



Step 3— Total the tally and add "0". If 

 8 trees showing an image within balance have 

 been counted, the basal area is 80. 



(Total & 

 average) 



0.0 — Any tree where the displacement 

 (Total to is greater than the width of the 



whole 



no.) 



tree: 



Ml 







Step 4 — Repeat Steps 1-3 as necessary if 

 it appears that density and stem diameter 

 varies greatly within the stand, and calculate 

 basal area by the following formula: 



10 X 



Number of trees tallied 

 Number of sampling points 



Step 5 — Refer to the following table for 

 percent of stocking. 



3.7-11 Personnel undertaking to determine site 

 index and density of stocking should be thor- 

 oughly trained in the field, particularly as to 

 sampling error, selection of plots, avoidance of 

 bias, etc. 



Cumulative Stocking Percent 

 Basal Area Factor = 10 



Dbh class 



Seedling 

 2 



4 



5 



6 



7 



8 



9-13... . 

 14-18... 

 19-32... 

 33-38. _. 



*Number of sound commercial trees tallied 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 











Tallj 



on hundredth of an acre 











10 



20 



30 



40 



50 



60 



70 



80 



90 



100 









12 



25 



38 



50 



62 



75 



ss 



100 























Prism counl 















17% 



34 



51 



68 



85 



102 

















15% 



30 



45 



60 



75 



90 



105 















13% 



26 



39 



52 



65 



78 



91 



104 











12% 



24 



36 



48 



60 



72 



84 



96 



108 











12% 



24 



36 



48 



60 



72 



84 



96 



108 











11% 



22 



33 



44 



55 



66 



77 



88 



99 



110 









10% 



20 



30 



40 



50 



60 



70 



80 



90 



100 









9% 



18 



27 



36 



45 



54 



63 



72 



81 



90 



99 



108 





8% 



16 



24 



32 



40 



48 



56 



64 



72 



80 



ss 



96 



104 



*The sum of tally under (C) above. 



Note: A plot may have both a prism count and tally. 



25 



