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| DOI: | 10.2136/sssaj1991.03615995005500050001x |
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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1991.03615995005500050001x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1991.03615995005500050001x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Holder, M.;
Brown, K. W.;
Thomas, J. C.;
Zabcik, D.;
Murray, H. E. |
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| Title: | Capillary-wick unsaturated zone soil pore water sampler |
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| Section: | Division S-1 - Soil Physics
Other records with the "Division S-1 - Soil Physics" Section
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| Source: | Soil Science Society of America Journal. Vol. 55, No. 5, September/October 1991, p. 1195-1202. |
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| Publishing Information: | Madison, Wisconsin: Soil Science Society of America |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Sampling techniques; Saturation; Soil sampling; Soil types; Soil water relations
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| Abstract/Contents: | "Existing unsaturated zone soil water samplers have several deficiencies that jeopardize their utility or field sampling. Suction cups function only when a vacuum is applied, and a sample from an unknown volume of soil. Pan samplers sample only saturated flow. A capillary-wick sampler was developed to overcome these problems and was tested in both the laboratory and field to evaluate its performance. Breakthrough curves for selected inorganic ions and organic chemicals were established in the laboratory. No adsorption/desorption of these chemicals was found for the capillary-wick samplers were installed in field plots of Padina sand (loamy, siliceous, thermic, Grossarenic Paleustalf), Weswood silt loam (fine-silty, mixed, thermic Fluventic Ustochrept), and Lufkin clay (fine, montmorillonitic, thermic Vertic Albaqualf) soils. Saturated soil Br breakthrough curves were determined at each location and used to estimate the number of samplers required to characterize the flow of contaminants. To achieve 95% confidence in the chemical data from the three soils and plot sizes tested, 31 samplers were required sandy soil, six for the silt loam soil, and only two for the clay soil. The wick-activated sampler collected soil solution samples from soils having soil water potentials ranging from 0 to -6.0 kPa. The capillary-wick sampler collected samples continuously across this range of water potentials without the need for a continuous vacuum and is thus an improvement over existing samplers. While the capillary-wick samplers usually collected sample volumes representative of the flux at potentials of -5 kPa, samples collected at greater and lesser potentials were not representative of the flux." |
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| Language: | English |
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| References: | 10 |
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| Note: | Figures
Equations
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Holder, M., K. W. Brown, J. C. Thomas, D. Zabcik, and H. E. Murray. 1991. Capillary-wick unsaturated zone soil pore water sampler. Soil Science Society of America Journal. 55(5):p. 1195-1202. |
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| DOI: 10.2136/sssaj1991.03615995005500050001x |
| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj1991.03615995005500050001x
Last checked: 03/01/2024
Access conditions: Item is within a limited-access website
Notes: Abstract only
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj1991.03615995005500050001x
Last checked: 03/01/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2199342a |
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