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University of Arizona (1968)

An economic evaluation of selected range improvement practices on the Papago Indian Reservation

Simpson, James R.

Titre : An economic evaluation of selected range improvement practices on the Papago Indian Reservation

Auteur : Simpson, James R.

Université de soutenance : University of Arizona

Grade : Master of Science (MS) 1968

Résumé
Cattle provide a major source of income on the Papago Indian Reservation in Southern Arizona. Grazing on the range has traditionally been unrestricted. As a result, severe overgrazing has led to frequent starvation conditions with high death losses and poor calf crops among the Papago herds. Development of approximately 25,000 acres of alluvial plain so as to utilize seasonal floodwaters to irrigate perennial grasses has been proposed as a possible means of correcting this problem. A benefit-cost analysis on two alternative plans was performed. In one plan in which herd numbers were assumed to be unrestricted, the annual benefits found to be less than annual costs. In the second plan, herd numbers were assumed to be held constant by initiating a system of grazing permits. It was concluded that the investment would be desirable under the second plan. Imposition of a grazing permit system represents a radical institutional change. Its many aspects and ramifications necessitates devoting considerable attention to a study of the Papago people and their cattle industry to provide guide lines for the needed management plans.

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Page publiée le 17 juillet 2018