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Competitive effects of grassland annuals on soil water and blue oak (Quercus douglasii) seedlings

Competitive effects of grassland annuals on soil water and blue oak (Quercus douglasii) seedlings

Ecology 74(1): 68-82

Bromus diandrus, B. mollis and Erodium botrys were sown at rates of 10, 30 or 100 seeds/dmsuperscript 2 in 15 cm diam. x 1 m deep tubes around a single acorn. Hemizonia luzulaefolia was sown at only 30 seeds/dmsuperscript 2. Identity and density of the annual species had independent and interactive effects on the water resource level. Soil water potential was negatively density-dependent, remaining highest when oaks were grown without competitors.

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Accession: 002329694

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DOI: 10.2307/1939502

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