Table 5. - -Distribution of sample trees by direction and degree of grain slope for each location, 



slope position, and stand density 



Plot 

 no. 



Slope 

 position 



Elevation 



Stand 

 density 



Grain slope direction 



Grain slope ratio 



Left ; Right [ Straight 



1:10 or : 1:11 to : 1:21 or 

 more severe : 1:20 : less severe 



Feet 



-Number of trees 

 KANIKSU PLOTS 



4 



Upper 



5,000 



Dense 



11 



8 



6 







2 



23 



3 



Upper 



5,000 



Open 



6 



19 







3 



8 



14 



5 



Mid 



3,900 



Dense 



5 



19 



1 







3 



22 



6 



Mid 



3, 900 



Open 



7 



18 







2 



10 



13 



1 



Low 



2,400 



Dense 



9 



15 



1 







2 



23 



2 



Low 



2,400 



Open 



8 



15 



2 







3 



22 





Total 







46 



94 



10 



5 



28 



117 

















KOOTENAI PLOTS 







5 



Upper 



5,200 



Dense 



8 



14 



3 







4 



21 



4 



Upper 



5,400 



Open 



5 



19 



1 



1 



8 



16 



6 



Mid 



4,200 



Dense 



8 



13 



4 







6 



19 



3 



Mid 



4,200 



Open 



6 



15 



4 







7 



18 



2 



Low 



3,200 



Dense 



6 



17 



2 



1 



9 



15 



1 



Low 



3,200 



Open 



20 



5 







3 



6 



16 





Total 







53 



83 



14 



5 



40 



105 





Total 







99 



177 



24 



10 



68 



222 



Slope position had no apparent effect on either the direction or severity of grain slope 

 (table 6) . 



Table 6. - -Relation of direction and degree of spiral grain to slope position 



Stand ■ 

 position ' 



Grain slope 



direction 



: Grain 



slope ratio 



Left 



Right 



[ Straight 



: 1:10 or : 

 : more severe : 



1:11 to : 1:21 or 

 1:20 : less severe 











Number of trees - 





Upper 



30 



60 



10 



4 



20 76 



Mid 



26 



65 



9 



2 



26 72 



Lower 



43 



52 



5 



4 



22 74 



Total 



99 



177 



24 



10 



68 222 



7 



