28 



CIRCULAR 6 3 6, U. S. DEPARTMENT OF AGRICULTURE 



T.\BLK 8. — Estimated acreage providitiff food and cover for wildlife, hy classes of 



land. 1935 — Continued 



6 Data from unpublished reports by O. E. Baker. U. S. Department of Agriculture. 



' Data from the National Resources Board's Recreational Uses of Land in the United 

 States, prepared by the National Park Service, Part XI of the Supplementary Report of 

 the Land Planning Committee, p. IJi'. 



^ Data from publications of the U. S. Department of the Interior. 



» Data from U. S. War Department Statistical Report, .July lO.",". 



1" Data from U. S. Navy Department, Federal-owned Real Estate Under Control of the 

 Navy Department. 



^ Less than 0.05 percent. 



^-Oljtained by subtracting grazed forest and woodland not in farms from the total 

 forest and woodland not in farms in the United States as given by the National Resources 

 Board Report. Fart VIII of the Supplementary Report of the Land Planning Committee, 

 p. 78. Some of it is in wildlife refuges. 



" Obtained by subtracting grazed nonforest or woodland not in farms from the total uon- 

 forest or woodland not in farms in the United States as given by various Government 

 reports. Some of it is in wildlife refuges. 



IMPROVEMENT OF HABITAT ON AGRICULTURAL LANDS 



Interest is currently expressed in the possibilities of improving 

 "wildlife habitat on agricultural lands. Table 4 indicates the per- 

 centage of agricultural land on which farm managers and conserva- 

 tionists believe it would be economically feasible to improve wildlife 

 habitat in accordance with present recommended land use practices. 

 The degree of practicable improvement is variable and the estimates 

 include the spheres of influence as well as the areas actually treated. 



Table 4 indicates that 58 percent of the land in farms. 90 percent of 

 the agricultural land not in farms, and 70 percent of the nonagricul- 



