THE YIELD OF OTHER CONIFEROUS TREES. 



THE following notes indicate approximately the returns 

 which will be yielded in the case of other coniferous 

 trees. 



Corsican Pine will, on Quality II. land, yield about 

 the same returns as are yielded by Scots Pine on 

 Quality I. land. On Quality II. land, on an 

 80-years rotation, an average annual increment 

 of 98 cub. ft. will be obtained, whereas on 

 Quality I. land the average annual increment 

 will be about 135 cub. ft. At 70 years of age it 

 is possible, on Quality I. land, to grow a final 

 crop of 5600 to 6300 cub. ft. per acre. 



Thuya, plicata will probably, on similar quality land, 

 yield a greater volume of timber than Corsican 

 Pine, but considerably less than Douglas Fir or 

 Sitka Spruce. 1 



Abies grandis will probably yield about the same 

 volume and value of timber as Sitka Spruce 

 on land equally adapted to its growth. 



Weymouth Pine will, on similar quality land, yield 

 about the same volume of timber at all ages as 

 Corsican Pine. 



1 Much land which is of Quality I. for Corsican Pine is only of Quality II. or III. for Thuya plicata. 



