N 



APPENDIX — CRITERIA FOR RATIKG PRODUCTIVITY 



STANDARDS FOR THE CENTRAL 

 REGION 



Forest Type Groups 



The criteria for rating productivity in the 

 Central Region were based on forest type group 

 and, for one type group, on site also: 



Elm-ash-cottonwood 



Bottom-land hardwood 

 Oak-hickory 



Upland hardwood 



Excellent sites 90 feet or more at matu- 

 rity. 



Good sites 70 to 90 feet at maturity. 



Medium sites 60 to 70 feet at maturity. 



Poor sites Less than 60 feet at mat ii- 



rity. 

 Oak-pine 



LobloUy-shortleaf pine (in- 

 cludes Virginia pine) 



Table 95. — Classification of species according 



685 



Species Classification 



The classification of species for the various 

 type groups and sites is shown in table 95. 



Existing Stocking 



Table 96 shows the number of trees per acre 

 required for full stocking. 



Prospective Stocking 

 Hardwood Type Groups 



Full credit for the ability of the hardwood forest 

 type groups to restock was given if the logging 

 and associated swamping resulted in stumps 

 mostly of desirable species that sprout prolifically, 

 and if the stumps were of a small enough size to 



to forest type group and site, Central Region 



/, 





Elm-ash- 

 cottonwood 

 type 

 group — 

 bottomland 

 hardwood 

 type 



Oak-hickc 



)ry type group — upland hardwood 

 type 



Loblolly- 

 shortleaf 

 pine and 



Species 



Excellent 

 sites 



Good 

 sites 



Medium 

 sites 



Poor 



sites 



oak-pine 



type 

 groups ' 



Ash 



D 



D 



D 

 A 

 D 

 A 

 A 

 A 

 D 

 A 









Aspen 









Basswood. 





D 

 A 



2 A 

 A 

 D 

 A 









Beech 





A 

 A 

 A 







Blackgum . . _ 









Buckeye- 









Cherry, black 









Cottonwood- . . - ._ 



D 

 D 



A 

 A 









Cypress 









Elms 



A 

 A 



3 A 

 A 

 A 



A 

 A 

 A 

 A 

 A 



A 

 A 







Hackberrv. . . . _ _ 







Hemlock . 







Hickory 



A 



A 

 A 







Locust, black 







Locust, honey 



A 



* D 







Maple, red 



A 

 5 A 



3 A 



D 



A 



A 

 5 A 

 D 

 D 

 A 

 A 

 A 

 D 

 A 

 D 

 D 



A 

 A 

 D 

 D 

 D 

 A 

 A 

 D 

 3 A 

 D 

 D 

 D 

 A 







Maple, sugar 







Oak, black 





<D 



A 



Oak, bur_ . _ . . _ . . 







Oak, chestnut _ 





D 

 A 

 A 

 A 

 A 

 A 

 D 

 D 





Oak, pin 



6 A 





Oak, post 







Oak, red- _ _ . . 



D 



D 

 A 

 D 



A 



Oak, scarlet- _ . . . 



A 



Oak, white 



Pines 



D 



A 

 D 



Redcedar 







A 



Sweetgum 



Sycamore 



Walnut, black 



D 

 D 



A 

 A 

 D 

 D 



D 

 A 

 D 

 D 









A 

 D 







Yellow-poplar 



D 





A 







D = Desirable species. 

 ' In eastern Kentucky, 



A = Acceptable species. 



the classification for upland 



hardwoods, medium site, was used in lieu of the classifica- 

 tion in this column. 



^ Noncount in all States except Kentuckj-. 



3 Desirable in Kentucky. 



* Acceptable in Kentucky. 



5 Desirable in eastern Kentucky and northern part of 

 region. 



* Desirable on tight-soiled pin oak flats. 



