Area by Timber Types 



The Forest Survey classified the forests of Indiana 

 into eight type groups based on species composition. 

 Each of these groups includes several subtypes. 



The oak-hickory type (fig. 10) is found on 2.4 mil- 

 lion acres or 58 percent of the forest area. In general 

 this large and important type is found on dry upland 

 sites and on less fertile soils than most other types. It 

 includes several subtypes or associated types that are 

 small in area but not minor in importance. Two such 

 are the white oak and yellow-poplar types. Oak 

 forests in which pine makes up 25 to 49 percent of the 

 stand are listed as oak-pine type. 



The elm-ash-cottonwood type is found primarily 

 along streams and on poorly drained flats. American 

 elm and green ash are the predominant species of this 

 type. Cottonwood, soft maple, sycamore, and swamp 

 white oak occur commonly as associates. This type 

 occupies 1.0 million acres or 24 percent of the forest 

 area. 



The maple-beech-birch type is found on 418,000 

 acres or 10 percent of the forest area. In northeastern 

 Indiana, sugar maple is its chief component (fig. 11). 

 In the southern part beech is the dominant tree. Very 

 little yellow birch is found in Indiana. The maple- 

 beech-birch type has frequently developed as a resid- 



FiGURE 1 0. — A young stand of mixed red and white oak, typical of the oak-hickory type in southern Indiana. 

 Indiana's Forest Resources and Industries 



