Abstract
In Unit 1, our discussion of soil water has dealt with various aspects of soil water content. Some of our common experiences, however, lead us to conclude that soil water content is not sufficient to specify the entire status of water in soil. Some of the observations that cause us to believe that there is a need to define some other property associated with soil water are:
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1)
Soils that have been treated in similar ways have different water contents (see Table 2.1).
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2)
Plants often grow differently in different soils even though they have the same water contents.
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3)
If soils with the same water contents but with different textures are placed in contact with each other, water will usually flow from one soil to the other. In general, it will flow from the coarse-textured to the fine-textured soil.
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Hanks, R.J., Ashcroft, G.L. (1980). Water Potentials. 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_2
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DOI: https://doi.org/10.1007/978-1-4684-0184-4_2
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