226 AVERAGE YIELDS FROM FOREST LAND 



YIELD FROM STANDARDS OVER COPPICE 

 Standards, Mixed Oak, Larch, and Ash. 



Oak on a loo-year rotation. Ash and Larch on an 8o-year rotation. 

 Coppice on a 2O-year rotation. Soil and situation Quality 1. 



Total yield every 2oth year = 928 cub. ft. to 6 in. q. g. 



which = 1091 cub. ft. to 2 in. q. g. 

 Average annual increment * for standards only from a normal area 



- ^ = 54 cub, ft. 



* The contents of the young standards of 20 years' growth has been left out 

 of account. 



Standards, Mixed Ash, and Larch. 



Rotation of Standards, 75 years. Rotation of Coppice, 25 years. 

 Soil and situation Quality II. 



Total yield every 2$th year = 690 cub. ft. to 6 in. q. g. 

 which = 980 cub. ft. to 2 in. q. g. 

 Average annual increment for standards only from a normal area 



, f^Qf^ 



cub. ft. 



