Carrying capacity of grazing ranges in southern Arizona . Fig. 1.—Conditions in an Arroyo, Showing how the Grass Retards ErosionAND Helps to Fill in Washed Places on the Santa Rita Range Reserve. Hundreds of places may be found on the reserve where different stages of this process ofleveling up are in progress. V % ^t ^^^^^^^ •afatt^ttJiifik^ • i -^1 IHfe . --^^-nf^^^H Hp^^^ t M^ ^1- iiP! Fig. 2.—The Boundary Fence between the McCleary (Left) and MacBeath(Right) Pastures in May, 1914, Showing the Extent to Which the Forageon These Pastures is Fed off Each Season. Bui. 367, U. S. Dept. of Agric
Carrying capacity of grazing ranges in southern Arizona . Fig. 1.—Conditions in an Arroyo, Showing how the Grass Retards ErosionAND Helps to Fill in Washed Places on the Santa Rita Range Reserve. Hundreds of places may be found on the reserve where different stages of this process ofleveling up are in progress. V % ^t ^^^^^^^ •afatt^ttJiifik^ • i -^1 IHfe . --^^-nf^^^H Hp^^^ t M^ ^1- iiP! Fig. 2.—The Boundary Fence between the McCleary (Left) and MacBeath(Right) Pastures in May, 1914, Showing the Extent to Which the Forageon These Pastures is Fed off Each Season. Bui. 367, U. S. Dept. of Agriculture. Plate X. 1 Hj^H^HflH^H^^^I^^^^^^HBHg^^^^^^r -J Fig. 1.—An Open Spot among the Mesquite Bushes on the Santa Rita Range Reserve. A good stand of grass has been obtained by persistent sowing. (Compare with fig. 2.). Fig. 2.—a Similar Open Spot, Showing the Beginning of the Growth of Grass. No results were obtained on this spot (which is less than 100 yards from the other) for severalseasons, though seeds were scattered each year. (Compare with fig. 1.) GRAZING EANGES IN SOUTHERN ARIZONA. 33 If allowance is made for the facts (1) that these pastured areasproduce more feed than other parts of the area under observation,(2) that they are carrying more under the present form of manage-ment than they would if an average number of animals were kepton them continuously, and (3) that there is some indication that theyare slightly overstocked, it is seen that the results obtained from thepasturing experiments are in reasonably close agreement with theaverage for the whole reserve derived by other means and presentedelsewhere in this bulletin. (See p. *21 et seq.) MISCELLANEOUS NOTES. Th^e effects of fire.—The complete protection of the reserve for anumber of years has resulted in a rather heavy crop o
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Keywords: ., bookcentury1900, bookdecade1910, bookidcar, booksubjectrangelands
