40 BULLETIN 367^ U. S. DEPARTMENT OF AGEICULTUEE. 



(4) Records of animal-days' feed consumed for a period of five 

 years on about 16 per cent of the best part of the reserve show exactly 

 what this land can do under a certain kind of management. The 

 type of management used tends to make the carrying capacit}- for 

 this area appear high. The pastured area naturally has the highest 

 carrying capacity of any part of the reserve. The area has probably 

 been slightly overstocked recently. All three of these factors tend 

 to increase the apparent carrjdng capacity of the area under stock. 

 The figure representing average carrying capacity for 7J sections 

 (one-eighth of the whole reserve) which have been stocked with 

 cattle is 14.1 acres per head per jenr, or 45-|- head per section. This 

 carrjdng capacity, for the reasons stated, is considerablj'' above that 

 for the whole range. Just how much too high it is would be very 

 hard to tell. Figures obtained on one of the pastures show that 

 stocking at the average rate of 58 acres per head per 3^ear, or 11 

 head per section, is considerably below the limit of maintenance 

 capacity, since the pasture so stocked is now not noticeably different 

 in condition from adjacent land which has had no stock on it for 

 11 years. 



Miscellaneous data. — Miscellaneous notes on the effects of fire, the 

 effect of protection on the minor relief features of the area, some 

 results of seed sowing, the results of a small amount of sheep grazing, 

 etc., are added, and a few suggestions as to the character of future 

 work are made. 



LIST OF PUBLICATIONS RELATING TO THIS SUBJECT. 



Range Improvement in Arizona. By. David Griffiths. Bur. Plant Indus. Bui. 

 4. 1901. 



Range Investigations in Arizona. By David Griffiths. Bur. Plant Indus. Bui. 

 67. 1904. 



The Reseeding of Depleted Range and Native Pastures. By David Griffiths. 

 Bur. Plant Indus. Bui. 117. 1907. 



A Protected Stoclv Range in Arizona. By David Griffiths. Bur. Plant Indus. 

 Bui. 177. 1910. 



The Grazing Ranges of Arizona. By J. J. Thornber. Bui. Ariz. Exp. Sta. 65. 

 1910. 



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