Abstract

Spanish Fork Canyon is located in central Utah and is part of the Wasatch Mountain range. Since the coming of the white man to this section of country it has been used as a trail. The canyon provides summer range for stock as well as a watershed. Plant densities were determined by the point observation method using series of one-hundred square foot plots. Three areas which have been subject to different grazing uses were studied. The association changes in the canyon are the replacement of sage by slender wheatgrass on the shallow soils and the disclimax condition resulting from over-grazing and fire with the annuals Bromus tectorum and Salsola pestifer replacing the true climax. The sage of protected alluvial fans shows rapid growth recovery and reproduction.

Degree

College and Department

Life Sciences; Plant and Wildlife Sciences

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