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| Web URL(s): | https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2000.642478x
Last checked: 02/27/2024
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https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2000.642478x
Last checked: 02/27/2024
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| Publication Type:
| Refereed |
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| Author(s): | Reynolds, W. D.;
Bowman, B. T.;
Brunke, R. R.;
Drury, C. F.;
Tan, C. S. |
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| Author Affiliation: | Reynolds, Drury and Tan: Greenhouse and Processing Crops Research Centre, Agriculture and Agri-Food Canada, Harrow, Ontario, Canada; Bowman and Brunke: Southern Crop Production and Food Research Centre, Agriculture and Agri-Food Canada, Harrow, Ontario, Canada |
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| Title: | Comparison of tension infiltrometer, pressure infiltrometer, and soil core estimates of saturated hydraulic conductivity |
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| Source: | Soil Science Society of America Journal. Vol. 64, No. 2, March/April 2000, p. 478-484. |
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| Publishing Information: | Madison, WI: Soil Science Society of America |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Saturated hydraulic conductivity; Infiltration; Physical properties of soil; Permeability; Sand; Loam soils; Clay loam soils; Soil management; Soil structure; Infiltrometers; Tillage; No-tillage systems; Comparisons
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| Abstract/Contents: | "Saturated hydraulic conductivity (K^D[S^D[A^D[T) is an important soil property that is difficult to measure. Positive-head tension infiltrometer (TI) and single-ring pressure infiltrometer (PI) techniques show promise for measuring K^D[S^D[A^D[T, but there have been few field tests or comparisons with other methods. The TI, PI, and classical undisturbed soil core (SC) methods for measuring K^D[S^D[A^D[T were compared on single-grain sand, structured loam, and cracking-clay loam soils under conventional tillage (CT), no-tillage (NT), and native woodlot (WL) managements. Of the 27 between-method correlations (3 methods X 3 soils X 3 managements), only four were signficant (P < 0.05). The TI method yielded lower K^D[S^D[A^D[T values under high-permeability conditions (K^D[S^D[A^D[T ≥ 10⁻⁴ms⁻¹) relative to the other methods, as evidenced by lower geometric mean K^D[S^D[A^D[T (K^D[G^D[M), lower maximum K^D[S^D[A^D[T (K^D[M^D[A^D[X), and lower minimum K^D[S^D[A^D[T (K^D[M^D[I^D[N) values. The 0.10-m diam. by 0.10-m-long SC method cores may have been too small to yield representative estimates of K^D[S^D[A^D[T in the cracking-clay loam and in the NT and WL managements of the sand and loam, as indicated by high coefficients of variation (CVs), inconsistent K^D[G^D[M values , or high K^D[M^D[A^D[X values relative to the other methods. Erratic K^D[M^D[A^D[X and K^D[M^D[I^D[N values, along with high CVs, suggest that the 0.10-m-diam. PI ring may have been too small to adequately sample the cracking clay loam soil under CT and NT management. Further work appears warranted for developing K^D[S^D[A^D[T measurement methods, interpreting K^D[S^D[A^D[T results, and determining appropriate K^D[S^D[A^D[T methods for various soil types and conditions." |
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| Language: | English |
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| References: | 35 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reynolds, W. D., B. T. Bowman, R. R. Brunke, C. F. Drury, and C. S. Tan. 2000. Comparison of tension infiltrometer, pressure infiltrometer, and soil core estimates of saturated hydraulic conductivity. Soil Sci. Soc. Am. J. 64(2):p. 478-484. |
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| Web URL(s):
https://acsess.onlinelibrary.wiley.com/doi/10.2136/sssaj2000.642478x
Last checked: 02/27/2024
Access conditions: Item is within a limited-access website
https://acsess.onlinelibrary.wiley.com/doi/epdf/10.2136/sssaj2000.642478x
Last checked: 02/27/2024
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 590 .S65 |
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