//rY. 7 



'nifed States 

 Department of 

 Agriculture 



Forest Service 



Intermountain 

 Forest and Range 

 Experiment Station 

 Ogden, UT 84401 



Research Paper 

 INT-323 



December 1983 



Undersj&jy 

 Vegetatio 

 An Efficient* 



. F AGRICULTURE 



Renee O'Brien 

 Dwane D. Van Hooser 



