MANAGEMENT OF PINON IN NEW MEXICO 217 



Table i.—Age of Pinon at Different Diameters on Stump, Including Age of 

 Seedling as 15 Years. Stump Height, 10 Inches 



[Based on Fourteen Trees Measured in T. 16 N., R. 11 E., New Mexico Principal Meridian 



withm the Santa Fe National Forest] 



D.i.b. stump Age of tree 



bnches) (j,^„^^) 



1 50 



2 80 



3 lOS 



4 130 



I 150 



o 170 



I 185 



^ 195 



9 • ■ • 205 



10 220 



II- 230 



Table 2. — Height Growth of Pinon Seedlings 



[Based on Six Trees] 

 Height Age 



{inches) (years) 



i ••• 8 



0-- II 



8 ••• 13 



10- • 15 



12 17 



Table 3. — Height Growth of Pinon 



[Based on Ten Trees] 

 , Age Height 



(years) (feet) 



20 1.5 



40 ••• 4.0 



^ 6.5 



80 9.0 



100 12 



120 15 



140 18 



160 21 



180 23 



200 26 



220 28 



240 31 



