| Abstract: | An improved air pycnometer method was used to examine the water content dependence of trapped-air volumes in two repacked, nonswelling soils. Trapped-air volumes were determined at a series of hydrostatic equilibrium stages which were attained during water pressure-controlled wetting and drying cycles over a range of 0 to -10 kPa for a sand and 0 to -20 kPa for a loam. In contrast with most of the results obtained in previous studies, which often showed irregular relations, in this study the volume fraction of trapped air was found to be a regular, monotonically increasing (though possibly hysteretic) function of water content. -from Authors |
| Genre: | Article |
| ProdID: | 70015274 |
| Citation Author: | Stonestrom, D. A.; Rubin, J. |
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| Citation End Page: | 1958 |
| Citation Issue: | 9 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water Resources Research |
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| Citation Number Of Pages: | 12 |
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| Citation Search Results Text: | Water content dependence of trapped air in two soils; 1989; Article; Journal; Water Resources Research; Stonestrom, D. A.; Rubin, J. |
| Citation Start Page: | 1947 |
| Citation Volume: | 25 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Water content dependence of trapped air in two soils; 1989; Article; Journal; Water Resources Research; Stonestrom, D. A.; Rubin, J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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