APPENDIX CRITERIA FOR RATING PRODUCnVITY 



673 



illustrate the field procedure, a sample calculation 

 for one plot, and the record made on a field work- 

 sheet for that plot (fig. 4), are given here. The 



Owner (name) John Doe 



State — Vu'ginia (criteria for the South Atlantic 

 TRR Region used); the forest type — loblollj'- 

 shortleaf pine cut 1 year before the examination. 



(Number) 



Forest type 

 Plot number . 



L.-SL Pine 



EXISTING STOCKING 



Size 

 class 



Desirable 



Acceptable 1 



No. 



Stocking 



% 



No. 



Stocking 



% 



Repro. 











2 









25 



4 



• 



17 







6 



■.■ 



4 







8 









4 



10 











12 







• 



4 



14 











16 











18 











20 











22 











24 











Total 





21 





33 



Total existing stocking 5'* ''^ f'^' 

 Prospective stocking '9 % 

 Total stocking 73 % (B) 



94 



78 



29/ .2734 



.27/ .2100 



261 



189 



124 



210 



116 

 8 



216 



.78 



.94 



.54 



.61 



312 



94 



390 



564 



.4212 



.5734 



PROSPECTIVE STOCKING OF DESIRABLE SPECIES 



Seed trees 

 per acre 



Other seed 

 sources 



Total 

 prosp. 

 stock. % 



(1) 



% of plot 

 Area pot. 

 stockoble 



(2) 



Final 

 prosp. 



D.b.h. 



No. 



Stocking 



% 



Disf. 

 chs. 



Stocking 



% 



stock. % 

 (l)x(2) 



6 

 8 

 10 





6 







-':'.'::. •::::::::. ■::::: : 





:;;:;:-^jj 



12 



14 

 16 + 

 Total 





8 

 20 



34 



6 



30 



64 



30 



19 





EFFECT OF FELLING AGE OR SIZE 





Even-aged 

 stands 



Uneven-aged stands 



Stump 



















Stocking 



Fell ing 



(l)x(2) 

 (3) 



age count 

 on stumps 



Sp. 



D.i.b. 



Age 



No. 



factor 



(1) 



factor 



(2) 





L.P. 



12 



40 



. 



4 



1.00 



4.00 





S.P. 



10 



35 



• 



3 



.98 



2.94 





S.P. 



10 



30 





3 



.94 



2.82 





S.P. 



8 



30 





4 



.94 



3.76 





S.P. 



6 



25 





4 



.82 



3.28 





S.P. 



6 



30 





1 



.94 



.94 





L.P. 



8 



25 





4 



.90 



3.60 





S.P. 



12 



50 





4 



1.00 



4.00 







NONG 



Rowir 



•4GS1 



rOCK(DEF 



-ECT1VE,ETC.) 







6 







2 



1.00 



2.00 



Totnl 





29 





27.34 



Averoae 



Weighted factor = (3) = 27.34 = .94 





Factor 





Adjustment for composition: 



Composition factor = Stocking % of desirable species ^ 



21 



Total existing stocking % x 0.5 54 x 0.5 



Stocking modification for composition = Factor x total existing stocking 



.78 X 54 = 



Add prospective stocking 

 Total adjusted stocking 

 Final rating = Adjusted stocking x felling factor: 61 



.94 



439296 U — 58- 



Entries at (A), (B), (C), and (D) will be recorded on field form. 

 Figure 4. — Field worksheet. 



45 



21 



27 

 42 



19 



61 



(C) 



57 



(D) 



= .78 



