A NATIONAL PLAN FOR AMERICAN FORESTRY 



943 



STANDS AND INCREMENTS IN A TYPICAL COUNTY 



Data obtained from surveys of counties distributed through the 

 South show that in general the lumber cut must be expected to decline 

 in the next few years. The following statement of the Southern 

 Forest Experiment Station, with table 13, shows the present status in 

 a county where conditions are better than average (25): 



A county-wide study in the shortleaf- loblolly-pine hardwoods in northern 

 Louisiana yielded the data set out in the following tabulation of second-growth 



60 



1913 '15 '17 '19 '21 



SECOND GROWTH SOUTHERN 

 YELLOW PINE. BASIS'. 

 3 BILLION FEET 



23 -25 '27 '29 1931 



("COTTON MIDDLINGS PER POUND 

 ---j WHOLESALE. NEW ORLEANS 

 (U.S. DEPT. OF LABOR) 



FIGURE 13. Comparison of price indexes of cotton and second-growth southern yellow pine stumpage. 



stands and current annual increment. These data show actual conditions as 

 they exist on certain areas of better forest lands, except that the percentage of 

 old-field stands, and hence the rate of growth, in this county is considerably above 

 the average. In the average county the percentage of old-field stands probably 

 does not exceed 5. The better stands of this county show conditions favorable 

 for private commercial forestry operations. The trees making up each old-field 

 stand are fairly even aged, but the stands vary widely in age. However, a mer- 

 chantable old-field stand with trees practically even aged has a considerable range 

 of diameter classes. Most of the second-growth stands have been cut two or 

 more times, and the trees vary considerably as to age and usually have a good 

 distribution of diameters, 



