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Plant Species Diversity, Drought, and a Grazing System on the Arizona Strip
- Hughes, Lee E.
- Rangelands 2017 v.39 no.1 pp. 20-27
- cattle, drought, forage, grazing, grazing systems, rangelands, species diversity, Arizona
- Maintaining plant diversity under livestock grazing and long droughts is a challenge in arid rangelands. Maintaining the plant diversity can and has been done through rotation grazing and movement of cattle from pasture to pasture at a trigger point. The trigger point is utilization levels of between 40% and 50% of annual growth of forage plants.