UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 675 



Contribution from the Forest Service 

 HENRY S. GRAVES, Forester 



Washington, D. C. T June 25, 1918 



RANGE PRESERVATION AND ITS 

 RELATION TO EROSION CONTROL 

 ON WESTERN GRAZING LANDS 



By 



ARTHUR W. SAMPSON, Plant Ecologist 

 and LEON H. WEYL, Grazing Examiner 



CONTENTS 



Page 



Purpose of the Study 1 



Damage Caused by Erosion 



Factors Determining the Amount of Erratic Run-off and Erosion . . 6 



Relation of Erosion and Soil Depletion to Vegetative Growth ... 18 



Relation of Erosion and Soil Depletion to Revegetation .... 22 



Influence of Grazing on Erosion and Stream Flow 24 



Preventive and Remedial Measures 27 



Conclusions >4 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1918 



