82 



MAN ON THE LANDSCAPE 



in any situation involving questions of land use and land improve- 

 ment. 



The relationships between plants and environment are not only 

 important to the individual land owner or user, but must be con- 

 sidered carefully in formulating state and national policies in regard 

 to agriculture, forestry, irrigation, regional and district develop- 

 ment plans such as the Tennessee Valley Authority and the Ohio 

 Conservaricy [flood control] Districts, soil conservation districts, 

 range management, drainage, and wildlife management. 



The acceptance of laissez-faire, hit or miss policies of land use 

 is on its way out. The increasingly complex social order of the 

 United States today cannot permit guesswork in the management of 

 such vital factors as food supply, organic industrial raw materials, 

 and lumber. 



716. 38. Artificial rain- 

 drops striking 1 bare soil. 

 The greater part of the 

 shattered drops splash 

 within an 18 inch hemi- 

 sphere, but some splash 

 as far as three feet. 

 The board at lower left 

 gruides water and soil 

 into a sunken container 

 for measurement. 



