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Glen Canyon National Recreation Area

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Successful establishment of vegetation in regions such as the Glen Canyon National Recreation Area (NRA) requires the most favorable sequence of weather events possible. In addition to favorable weather, soil conditions must be such that transplanted roots are placed in contact with moist soil and can rapidly grow out into the surrounding area (unrestricted by compaction). Only infrequently do plants establish naturally from seeds in the harsh conditions of the Glen Canyon NRA. Thus, the objectives for the study were to review the literature on artificial revegetation in arid regions and to establish test plots in accord with current weather conditions, especially with regard to periods of drought or precipitation.