RESEARCH AND FOREST MANAGEMENT 



595 



tion, this company was receiving a gross return of approximately $500 

 per acre, whereas had it cut the timber only for lumber it would have 

 received less than $300 per acre. 



To me, research in 'forest products has always been the most inter- 

 esting phase of forestry. What is the use of growing trees if they 

 have no use? I believe that forest products research will encourage 

 silvicultural methods and methods of forest management. Having 



Rate of yroivth of certain trees. 



Species 



Age (years) 



30 



Diameter, 

 inches 



Height, 

 feet 



50 



Diameter, 

 inches 



Height, 

 feet 



Catalpa 



Chestnut 



Co'tonwood 



Black gum 



B ue gum 



Black locust 



Loblolly pine 



Redwood 



White oak 



Douglas fir 



Black oak 



Red oak 



Jack pine '. 



Norway pine 



Scrub pine 



Wc.-tern yellow pine 

 Black walnut 



Arborvitse 



Red gum 



Chestnut oak 



Longleaf pine 



Tamarack 



9.0 



9.3 



21.7 



28.0 

 11.2 



fl.O 

 10.0 

 10.7 



7.8 

 7.4 

 G.9 

 7.6 

 6.? 



6..3 



7.1 



8.0 



2.3 

 3.0 

 2.9 



45 



57 



126 



140 



S7 

 55 

 59 



71 



67 

 4S 

 53 

 56 

 40 

 45 

 40 

 35 

 40 



15 

 9 

 20 

 29 

 32 



13.4 

 30.4 



16.8 



15.9 

 14.5 



12.1 

 13.7 

 11.3 

 12.4 



*8.5 



10.3 



8.9 



i:j.2 



12.0 



3.8 

 2.9 

 5.6 

 6.7 

 5.0 



143 



106 



86 

 95 



90 

 SO 

 75 

 76 

 50 

 75 

 63 

 61 

 60 



28 

 20 



50 



once established the use for trees, silviculture can then aid by showing 

 what are the best ways to grow the trees for which the uses have been 

 established. For example, the uses for chestnut already pointed out 

 will probably show to the forester that this can be best propagated 

 on a coppice system under which it will produce the greatest volume 

 of wood in the siiortest time. Research in wood preservation will 

 justify the growing of such rapidly decaying trees as loblolly pine for 

 ties. Research in paper making has justified the growing of certain 



