6000 ■ 



4000 ■ 



2000 



Figure 61 — Effect of tfiinning on standing volume of western larch for Inland Nortli- 

 west forests (total cubic feet), site index 50. 



10000 



l±! 8000 



6000 - 



4000 - 



2000 - 



110 120 130 140 150 



Figure 62 — Effect of thinning on standing volume of western larch for Inland 

 Northwest forests (total cubic feet), site index 70. 



51 



