Abstract
Liquid water flow occurs in response to a hydraulic potential gradient and not necessarily in response to a water content gradient. Thus, when potential is plotted as a function of depth, it results in a smooth curve even across the boundary between layers (see Fig. 3.1 A). When water content is plotted as a function of depth, there is normally a sharp discontinuity in the curve at the boundary between layers (see Fig. 3.1 B).
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© 1980 Springer-Verlag Berlin Heidelberg
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Hanks, R.J., Ashcroft, G.L. (1980). Water Flow in Soil. In: Applied Soil Physics. Advanced Series in Agricultural Sciences, vol 8. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-0184-4_3
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DOI: https://doi.org/10.1007/978-1-4684-0184-4_3
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