A NATIONAL PLAN FOR AMERICAN FORESTRY 



897 



this report.) Data as to measures to prolong productivity, and as to 

 organized sustained-yield practice, are given in the following tabula- 

 tion (as of 1931): 



Both tabulations show that forestry effort other than fire protec- 

 tion has been extended to less than 21 million acres. This is about 

 7 percent of the private forest area outside of farm woodlands. 

 Sustained-yield management has been applied to slightly more than 

 2,300,000 acres, which is less than 1 percent of the privately owned 

 forest area. These percentages would be larger if they were com- 

 puted on the basis of the area which still bears sufficient growing 

 stock for private operation. 



Apparently private forest owners have not yet given adequate 

 consideration to the advanced stage of liquidation of the private 

 forests and to the savings realizable through conserving productive 

 capital values. Further details in regard to the present status of 

 private forestry in each forest region will be given later in this section. 



CONDITIONS IN FARM WOODLANDS 



Detailed information is lacking on the condition of farm woodlands. 

 Numerous reports from observers show conclusively that as a rule the 

 woodlands are producing to only a small fraction of their capacity. 

 In nearly all regions fires continue to limit productivity ; in some, the 

 chief source of injury is unrestricted grazing. In all regions the 

 woodlands suffer from cutting of trees that have not yet grown to a 

 size to produce high- value material. 



Notwithstanding these defects in management, farm woodlands 

 are producing a large annual volume of forest products and are among 

 the principal sources of farm income. The following data from the 

 United States census of 1930 (I) 2 show the character and value of 

 forest products cut from farm woodlands in 1929. (The quantities 

 and values refer to products cut and ready for use or for marketing 

 as raw material.) 



Thousand board feet. 



Cords. 



Pieces. 



3 For list of list literature and authorities cited see page at the end of this section. 



