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This article in AJ

  1. Vol. 57 No. 6, p. 626-629
    Received: Apr 14, 1965

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The Role of Soil Moisture in Evapotranspiration1

  1. J. R. Eagleman and
  2. W. L. Decker2



The regression between soil moisture deficit and the relative evapotranspiration was curvilinear with a correlation coefficient of .72. A negative linear regression described the relationship between the soil moisture potential and the relative evapotranspiration with a simple correlation coefficient of −.74. The relationship between unsaturated conductivity and the relative evapotranspiration rate was investigated by designing a laboratory experiment which showed that plants growing in this soil wilted as the unsaturated conductivity dropped from 8.89 cm./day/joule to 0.77 cm./day/joule.

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