Net annual growth of sawtimber.— The change 

 during a specified year in net board-foot volume of 

 live sawtimber on commercial forest land resulting 

 from natural causes exclusive of catastrophic losses. 



Net annual growth of growing stock. — The 

 change during a specified year in net cubic-foot vol- 

 ume of growing stock on commercial forest land 

 resulting from natural causes exclusive of cata- 

 strophic losses. 



Mortality 



Annual mortality of sawtimber. — The net 

 board-foot volume removed from live sawtimber 

 during a specified year through death from natural 

 causes, biu not as the result of catastrophes. 



Annual mortality of growing stock.— The net 

 cubic-foot volimie removed from growing stock dur- 

 ing a specified year through death from natural 

 causes, but not as the result of catastrophes. 



Drain 



Commodity drain on live sawtimber. — The 

 board-foot volume of live sawtimber trees removed 

 from commercial forest land during a specified year 

 as timber products and logging waste. 



Commodity drain on growing stock.— The cubic- 

 foot volume of live sawtimber and poletimber trees 

 removed from commercial forest land during a 

 specified vear as timber products and logging waste. 



Principal Commercial Tree Species of Kentucky^ 



SOFT\VOODS 



Baldc\ press Taxodium distich um 



Hemlock, eastern Tsuga canadensis 



/ eastern white Pinus strobus 



Pine ^ P"*^'' ^- "^'^" 



^ shortleaf P. echinata 



' \'irginia P. virginiana 



Redcedar, eastern Juniperus virginiana 



Hardwoods G 



Ash Fraxiniis spp. 



BassW'Ood ; Tilia spp. 



Beech, Ameiican : Fagus grandifolia 



Blackgiim Nyssa sylvatica 



Boxelder Acer negundo 



Cottonwood, eastern Populus deltoides 



Ehn Ulmus spp. 



Hickory Carya spp. 



i red Acer rubrum 



Maple ." silver A. saccharin um 



I sugar A. saccharum 



black Querciis velutina 



bur Q. macrocarpa 



cherry bark Q. falcata var. pagodaefolia 



cliestnut Q. prinns 



chinkapin Q. muehlenbergii 



northern red Q. rubra 



overciip Q- hrata 



pin Q. palustris 



Oak ^ post Q- stellala 



scarlet Q- coccinea 



shingle Q- imbricaria 



southern red Q- falcata 



swainp chestnut Q- michauxii 



swamp white Q- bicolor 



water Q- nigra 



white Q- alba 



willow : Q- phellos 



See footnotes on p. 41. 

 40 Forest Resource Report No. 7 . U. S. Department of Agriculture 



