Table 18 — Equations predicting heights of subsequent regeneration. The form of the equation \s HT= e ^^/"ii 



Ponderosa 



Western 



Lodgepole 



Engelmann 



Dougias- 



White 



Grand 



Western 



Subaipine 



Western 



Variable 



pine 



larch 



pine 



spruce 



fir 



pine 



fir 



hemlock 



fir 



redcedar 



/ (X) 



(P) 



(3) 



(3) 



(0) 



(3) 



(3) 



(0) 



(3) 



(3) 



(3) 



1 Constant 



0.07492 



-1 .47708 



-0.66776 



-2.79250 



-2.21695 



-1 .86747 



-2.51730 



-2.5241 5 



-2.29466 



-1 .40304 



2 In(AGE) 



1 .43793 



1.19295 



1 .25739 



1 .40463 



1 .22826 



1 .27309 



1 .07561 



1.41312 



1.11917 



.95548 



3 COS(ASP) SLO 











-.21656 







-.15794 







-.16952 











-.56659 



4 SIN(ASP)*SLO 











.03283 







-.21290 







.04787 











.24004 



5 SLO 











-.49383 







-.09355 







-.20352 











.76533 



6 ELEV 











-.03714 















.03880 











-.01515 



7 ELEV^ 











.00026 















-.00055 















8 In(ELEV) 



-.61 898 







































9 BAA 



-.00549 



-.00463 



-.00848 



-.00298 



-.00370 



-.00323 



-.00421 



-.00325 



-.00434 



-.00305 



10 In(TPSP) 



.07678 



.08910 



.13010 



.07743 



.13622 







.19073 



.15078 



.16980 



.16188 



11 'NONE 











































12 MECH 



.20702 







.12941 



.11501 



.08694 







-.09217 











-.12496 



13 BURN 



.22443 







.04401 



.30555 



.25036 







.03063 











.02469 



1 4 ROAD 



.14508 







.12617 



.08946 



.13741 







-.12040 











.15949 



1 5 BWAF 











.01 327 































16 BOTTOM 











.36066 







-.29274 







-.07201 















17 LOWER 











.20156 







-.20692 







-.15738 















18 MIDSLOPE 







n 

 u 





u 





u 



— 1 1 ft 

 — . 1 1 0*tH 



n 

 u 



\j 



n 



v 



19 UPPER 











.34617 







-.24640 







-.13008 















20 'RIDGE 











































Habitat type groups 























21 ^DryPSME 







-.00159 



-.07687 



No data 



.01435 



No data 



No data 



No data 



No data 



No data 



22 ^Moist PSIvIE 







.01830 



-.19234 



No data 



-.19420 



No data 



No data 



No data 



No data 



No data 



23 ABGR 









.0/:14d 







u 



/\ 

 u 



No data 



ino uaia 



INO Uola 



24 THPUTSHE 







.<iy»Di 



— .OOD*:^ 





.4U04d 



U 



u 



u 



INO uaia 



U 



25 'ABLA 































No data 



U 



INO uaia 



F-ratio 



149.59 



78.08 



57.24 



128.43 



92.98 



159.00 



212.47 



180.03 



127.53 



41.94 



R-square 



0.6116 



0.4922 



0.5719 



0.6282 



0.4943 



0.4739 



0.5021 



0.6102 



0.4272 



0.4802 



No. trees 



673 



572 



878 



617 



1,635 



356 



3,177 



349 



517 



465 



Optimum aspect 



NS 



NS 



171° 



NS 



233° 



NS 



164° 



NS 



NS 



157° 



^Amplitude 







1.14 





1.17 





1.11 







1.45 



'Represented as part of the constant term to avoid a singular matrix. 

 'Dry Pseudotsuga menziesii (habitat type group 1). 

 ^Moist Pseudotsuga menz/es/V (habitat type groups 2, 3, and 4). 

 ^Height at the optimum aspect divided by height at the poorest aspect. 



53 



