SHORTLEAF PINE: IMPORTANCE AND MANAGEMENT. 49 
shortleaf pine to be 70 years old, 69 feet high, and to contain 170 
feet of saw timber, scaled by the Scribner rule. If left 30 years for a 
second cut, the 14-inch tree will be 100 years old, 16.5 inches in di- 
ameter, 74 feet high, and scale 270 feet by the Scribner rule. 
An area of 18 acres on a typical cut-over tract on the Arkansas 
National Forest cut to a 14-inch diameter limit contained an average 
of 21.4 shortleaf pines per acre, of which 12.4 were 10 inches and 
over, breast-high diameter, and yielded 1,497 board feet per acre. 
The actual cut of pine on the sale area of 800 acres averaged 2,434 
board feet per acre, or almost exactly 62.5 per cent of original stand 
of 4,000 feet. Table 27 shows the size and number of trees left on a 
sample 18 acres of this sale: 
TABLE 27.—Shortleaf pine left on 18 acres of typical cut-over tract on the Ar- 
- kansas National Forest.* 
Trees. 
DIAMCLRS = eS Sle 2) Oe oo pees 
(breast- 1 Teas 
high) Sample tract. Arvetdzo)|) <hieh) 
in 1910. © |———_————————_—__| Total. | number | im 1940.2 
1 2 3 per acre. 
Inches ’ Inches. 
cceee we: tal eS 8 9 0.5 11.0 
Giste es: 2 4 10 16 9 12.0 
ieee ces 2 9 20 31 iby 12.3 
822818 - 3 14 27 44 2.4 12.8 
DE ace ee 14 14 35 63 3.5 13.4 
LO Soe Se 4 12 24 40 2.2 14.0 
MAb eeS Fo 24 14 26 64 3.6 14.6 
A Dy sos es 16 5 25 46 2.6 1552 
AS Eanes 12 3 13 28 1.6 16.0 
ee omen 3 2 13 20 11 16.6 
1 Seeeee 3 3 5 11 -6 17.3 
AG3s Hs eS. 3 3 3 9 25 17.8 
Wis 38 o3Oes GSE e one [rites deece 1 ai 18.5 
PQiees «fa eese stse eek «ks 1 1 ol 19.2 
Total 89 84 210 383 a ee. a eS Ae 
DIAMETER AND YIELD IN ABGCVE STAND. 
Trees. Yield. Diameter 
i eee See See see (OU eo es STOUDS 
Danmar breast-) 
StoupS: Total (18| Average | Total (18| Average high) 
acres). | peracre. | acres). | peracre. | - in 1940. 
Inches. Bd. ft. Bd. ft. Inches. 
AGOOE Se ceees 161 OEOM Saisie oes ee otic Se 11 to 13.5 
LOMO Reo = 178 10.0 20, 980 1,166 | 14 to 16 
14 and above. 44 2.4 5, 960 331 | 16.5 up. 
Total... 383 21.4 26, 940 LAG (elesiae eee ee 
i Plots selected and measured by H. D. Burrall, January, 1911, in mixed shortleaf and hardwood stand. 
Three sample plots of 6 acreseach. Stand cut to 14-inch diameter limit. 
2 Based on diameter and growth tables in U. S. Department of Agriculture Bulletin 244, ‘Life History 
of Shortleaf Pine.” 
If a second cut is made in 30 years, the trees now 10 to 14 inches 
will have reached diameters of 14 and 16.5 inches, respectively. On 
