APPENDIX III 



Examples of SpeciBcation of Sample Design 



To illustrate the use of the variables IBAP and IPT, several cases will be described 

 that involve changes in some constants established in the BLOCK DATA subprogram. 



A stand tallied at a set of 12 points. At each point, trees less than 5 inches 



d.b.h. are recorded on a 1/300 acre fixed plot. Trees greater than or equal to 



5 inches d.b.h. are tallied on a variable plot established by an angle gauge having a 

 basal -area factor of 20 square feet/tree. Then: 



IPT = 12 on card #7 



IBAP can be set to 20 or 0. The latter will default to BAF = 20 established in 

 BLOCK DATA. 



Same as for Case 1, except the variable plot has a basal area factor of 40 square 

 feet/tree. Then: 



Case 1 



Case 2 



IPT 



12 



on card #7 



IBAP 



40 



31 



