WESTERN LARCH HEIGHT PREDICTION 



(Equation II) 



Table 3a. — Base values from stand age and white pine site index 



btana White pine site index 



age 



(years) 40 50 60 70 80 



20 -128 -131 -136 -143 -149 



30 -118 -115 -114 -113 -114 



40 -109 -103 -98 -95 -92 



50 -101 -92 -86 -81 -76 



60 -93 -83 -75 -69 -63 



70 -84 -73 -65 -58 -51 



80 -76 -64 -55 -47 -40 



90 —68 —56 -46 -38 -30 



100 -60 -47 -37 -28 -20 



Table 3b. — Adjustment values for aspect Table 3c. — Adjustment values for elevation 



Azimuth Adjustment value Elevation (feet) Adjustment value 



0(360°) +3 2,000 +168 



45° +2 2,500 +152 



90° 3,000 +144 



135° -2 3,500 +141 



180° -3 4,000 +141 



225° —2 4,500 +143 



270° 5,000 +147 



315° +2 ' " 



Table 3d. — Adjustment values for topo Table 3e. — Adjustment values for habitat 



position type 



Position Adjustment value Habitat type Adjustment value 



Ridge +12 Abies/ Pachistima —9 



Upper slope +1 Thuja /Pachistima +6 



Middle slope Thuja-Tsuga/ Pachistima +3 



Lower slope — 1 



Flat or bench — 12 



16 



