GROWTH AND DEVELOPMENT OF LOBLOLLY PINE. 



129 



TABLE III. Rate of growth of Loblolly Pine. 



HEIGHT 

 IN FEET. 



34^5 6r-78-HOO-t-M.8--*--l 3.3-f- 15.5 *~I7.I~4" I8.7--X 19.5 * 20.2-*- -20.7- >. 



DIAMETERS 

 IN INCHES. 



FIG. 12. Growth of Loblolly Pine : Height, diameter, and cubic contents of average trees at 10, 20, etc., years of age. 



CONDITIONS OF DEVELOPMENT. 

 SOIL ANL> CXIMAiE. 



The Loblolly Pine prefers a moist, cool, sandy or light loamy soil, which, if not always moist, 

 should have a greater retentiveuess for moisture than is required by most of the other upland 

 pines. It reaches its greatest perfection in the perpetually moist or fresh forest lands, with a soil 

 of a sandy loam, rich in vegetable mold the accumulation of ages which border the swamps 

 of the coast region. The tree is not found on the porous, highly siliceous soils of the more 

 elevated uplands, where the Longleaf Pine almost exclusively prevails; it also avoids heavy clay 

 and calcareous soils of the uplands and the alluvial lands. 



The Loblolly Pine is a tree of austral regions confined to the humid belt of the Austro-riparian 

 or Louisiana zone and the lower border of the Carolinian life zone, which, on the Atlantic Coast, 

 7092 No. 13 9 



