Table 2. --Mortality models for north Idaho species 



Species : 



Prediction equation: 

 No. of observations: 

 Variable 



Pinus montieola (western white pine) 



l/{ 1+exp [3 . 25309-0. 00072647 +0. 0166089 {DBH) ] } 



1,363 



Mean Standard deviation 



BA - basal area/acre (ft^/acre) 



DBH - diameter at breast height (inches) 



235.0 

 23.1 



100.0 

 10.4 



Species: 



Prediction equation: 

 No. of observations: 

 Variable 



Larix occidentalis (western larch) 



l/{ l+exp[3. 8774+0. 2177 {DBH)-Q. 0002209(^r) -0. 02409 {AGE) ] } 

 784 



Mean Standard deviation 



HT - height (feet) 122.1 

 AGE - age (total years) 12^.1 

 DBH - diameter at breast height (inches) 19.5 



33.1 

 41.8 

 8.5 



Species: 



Prediction equation: 

 No. of observations: 

 Variable 



Pseudotsuga menziesii (Doug las- fir) 



l/{ 1+exp [4. 78313+0. 21186 (Z^Bff) -0. 039527 {HT) ] } 



2,036 



Mean Standard deviation 



DBH - diameter at breast height (inches) 

 HT - height (feet) 



16.3 



8.6 

 34.8 



Species: 



Prediction equation: 

 No. of observations: 



Variable 



Abies grandis (grand fir) 



l/{ 1+exp [4. 89819-0. 0047554 (%D£'F)-0. 222746 (CC) ] } 

 3,864 



Mean Standard deviation 



%DEF - percent defect (appendix) 

 CC - crown class (1,2,3,4) 

 Diameter at breast height (inches) 



26.2 

 1.6 

 18.0 



35.5 

 1.3 

 10.59 



Species: 



Prediction equation: 

 No. of observations: 

 Variable 



Thuja pliaata (western redcedar) 



l/{ 1+exp [5. 99811-0. 01037 (%Z)£'F)-0. 26124 (CC) ] } 



5,282 



Mean Standard deviation 



CC - crown class (1,2,3,4) 



7oDEF - percent defect (appendix) 



Diameter at breast height (inches) 



1.7 

 40.9 

 24.7 



1.4 

 39.4 

 16.1 



13 



