GROWTH AND DEVELOPMENT OF LOBLOLLY PINE. 



121 



Table IIL — Itate of ijroieih of LobUitli/ rine. 



Age. 



Diameter I'^S^,"/ 

 ffSf .a?n'eterof 



Feet. 



Periodical accretion or growth per decado. 



Decade. 



First 



Second . . . 



Third 



Fourth ... 



Fifth 



Sixth 



Seventh .. 

 Eightli ... 



Niutli 



Tenth 



Eleventh , 

 Twelfth .. 



Inches. 

 2.4 

 2.3 

 2.2 

 2.0 

 1.8 

 1.6 

 1.5 

 1.4 

 1.1 

 .9 



Height. 



Feet. 



18 



19 



13 



11 



9 



8 



7 



5 



5 



3 



2 



2 



Area of 

 crosa sec- 

 tion. 



Sq.fect. 

 0.03 

 .08 

 .14 

 .17 

 .19 

 .19 

 .21 

 .21 

 .19 

 .10 

 .13 

 .10 



Volume. 



Average 



annniu 



accretion. 



0.60 

 2. 45 

 6.67 

 7.91 

 8.67 

 10.35 

 13. 37 

 13.42 

 15.58 

 11.39 

 6.69 

 0.00 



Cu. ft. 

 0.06 

 .14 

 .29 

 .41 

 .57 

 .69 

 .70 

 .78 

 .87 

 .89 

 .87 

 .85 



Current 

 accretion. 



Cw. ft. 



0.06 



.24 



.57 



.70 



.87 



1.03 



1.33 



1.34 



1.56 



1.14 



.66 



.60 



HEIGHT 



IN FEET. 



I02r 



no 



YEARS. 



96.0 

 CU3 f[. 



■/Z^^-^V. 



120 

 YEARS. 



102.0 

 'CUB. FT 



34^5 6i-7 8-H0.0--*--ll.8--t--|3.3--1--l5.5— r-17.1--*— I8.7--X— 19.5 — -*---20.2-----20.7- -> 

 ■ ■ ■ ■ ' ■ DIAMETERS 



IN INCHES. 



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



CONDITIONS OF DEVELOPMENT. 



SOIL AN1> CLIMATE. 



Tlie Ijoblolly Pine prefers a moist, cool, .sandy or light loamy soil, wliicli, if not alwa.ys moist, 

 sboiikl have, a greater retcntiveness for moisture than is re(|uire(l by most of the other npland 

 pines. It reaches its jjreatest perfection in the iierpetually moist or fre.sh 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 Longieaf Pine almost exclusively prevails; it also avoids heavy clay 

 and calcar«M>us soils of the uplands and the alluvial lands. 



Tile Tioblolly 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, 



