I 



CM 



» -o 



340 

 320 

 300 

 280 

 260 

 240 

 220 

 200 

 180 

 160 

 140 

 120 

 100 



80 



601- 



40 



20 



10 



100 



1,000 



L^H 



10,000 

 (after Wiegel, I960) 



Figure 2-14. Relationship Between T y g/d yf/d, H/yf and L^H/d^ 



2-55 



