14 



LOBLOLLY OR NORTH CAROLINA PINE. 



FOREST TYPES. 



Wherever similar soil and moisture conditions prevail there is a 

 definite association of species. This association which is called a 

 forest type remains practically constant until the natural conditions are 

 disturbed by fire, cattle, lumbering, or other causes. The type is formed 

 of those species which are best suited to soil and moisture conditions, 

 but this does not necessarily mean that the natural mixture of species 

 would be the most profitable one or the most desirable one economically 

 for that site. The rate of growth of the different species which form 

 a type is practically always the same in that type, and the yield of the 

 type at a given age is constant. 



Table 1 shows the composition of the important commercial forest 

 types of the coastal plain of North Carolina and their relation to soil 

 and drainage. The great number of forest types in which loblolly pine 

 occurs is noteworthy as showing the virility and aggressiveness of this 

 species. 



TABLE I CHARACTERISTIC FOREST TYPES OP EASTERN NORTH CAROLINA ACCORDING TO SOIL 



AND DRAINAGE. 



