PSSC 330 Chapter Notes - Chapter 2: Taylor Grazing Act Of 1934, Rangeland Management, Rangeland
11 Sep 2016
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Smith said that range destruction by uncontrolled livestock causes: reduction in grazing capacity, replacement of desirable forages with non-palatable plants, soil compaction (by livestock) Loss of plant cover leading to decreased soil fertility: decreased rainfall absorption by soil, high soil loss during periods of torrential rain, rapid increase in prairie dogs and jackrabbits. Defer grazing until seed reaches maturity (will help seedling establishment/replenishment. Although us has developed science of range management, many countries have been using our. Cactus + sagebrush are abundant in areas of overgrazing. 1515 cortez responsible for livestock industry in mexico. 1540 coronado brings 1st cattle, sheep, horses to u. s. many escaped and overpopulated due to good climate & abundant forages. 1590 don juan de onte- key figure in establishing livestock industry in south west us. 1600-1700 missions establishes- teach native americans how to raise livestock. Patrones- received large spanish + mexican land grants and thus could afford many animals.
