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Plant establishment in semi-arid rangelands is difficult because of low, unpredictable soil water and extreme soil temperatures. In these rangelands, biosolids disposal is limited to topical application; resulting soil coverage ameliorates microenvironmental conditions and may affect plant establishment. We investigated biosolids effects on soil water, soil temperature, and seedling emergence and...
We evaluated the effect of solar exposure and predation on seedlings of six species of three life-forms. Columnar succulents and arborescent semi-succulents emerged faster under shrubs (24 and 55 days) than in open places (44 and 60 days). Succulents had a longer survival time (138 days) without predators and under shrubs. Predator exclusion led to a longer survival in semi-succulents under shrubs...
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