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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Vegetation changes on a southern Arizona grassland range; an analysis of causes

Mehrhoff, Loyal Archie, 1925- January 1955 (has links)
No description available.
2

Effects of longtime livestock exclusion versus grazing on the desert grassland of Arizona

Caraher, David Luther, 1937- January 1970 (has links)
No description available.
3

SOME FACTORS AFFECTING VEGETATION CHANGES ON A SEMIDESERT GRASS-SHRUB CATTLE RANGE IN ARIZONA

Martin, S. Clark (Samuel Clark), 1916- January 1964 (has links)
No description available.
4

Effects of conservative grazing on a desert grassland range as shown by vegetational analysis

Haskell, Horace Stewart, 1915- January 1945 (has links)
No description available.
5

Quantitative Studies on the Vegetation of the Grazing Ranges of Northern Arizona

Loftfield, J. V. Gorm, 1890- January 1924 (has links)
No description available.
6

The effect of commercial fertilizers on the forage production of chaparral lands in central Arizona following burning, reseeding, and herbicide treatment

Anklam, George Lawrence, 1936- January 1962 (has links)
No description available.
7

The effect of mesquite control on the soil moisture content of mesquite-infested range land in Southern Arizona

Martin, S. Clark (Samuel Clark), 1916- January 1947 (has links)
No description available.
8

The effect of slope and exposure on range vegetation in desert grassland and oak woodland areas of Santa Cruz county, Arizona

Cumming, Kendall James, 1925- January 1951 (has links)
No description available.
9

Effects of ammonium phosphate on a Southern Arizona desert grassland range

Tixier, John Stanley, 1932- January 1959 (has links)
No description available.
10

A model for sustainable management of livestock on the commons: A comparative analysis of two types of Apache Indian cattle associations.

Norvelle, Michael Eugene January 1990 (has links)
This dissertation develops a new organizational model based on sustainability criteria within which the organizational and technical solutions to the problems of management of extensive livestock production systems on the commons grazing lands can be provided. Due to the multifarious forces of modernization the traditional range/livestock systems developed by tribal peoples in arid and semiarid areas world-wide have largely been abandoned. The outcome has been extensive rangeland deterioration and expansion of desertification in many cases. The Apache Indian cattle association operations examined herein, the Mescalero single-brand and the San Carlos multiple-brand, are examples of livestock organizations operating extensive livestock production programs on commonly held rangelands. The results of these investigations provide the basis for developing this model.

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