MEASUREMENT OF SATED HYDRAULIC CONDUCTIVITY OF SURFACE SOIL IN THE FIELD WITH A SMALL-PLOT SPRINKLING INFILTROMETER
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dc.contributor.author | Suleiman K.A. | |
dc.contributor.author | Swartzendruber D. | |
dc.date.accessioned | 2022-01-20T03:41:53Z | |
dc.date.available | 2022-01-20T03:41:53Z | |
dc.date.issued | 2003 | |
dc.identifier | https://elibrary.ru/item.asp?id=1354970 | |
dc.identifier.citation | Journal of Hydrology, 2003, 272, 1-4, 203-212 | |
dc.identifier.issn | 0022-1694 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/34445 | |
dc.description.abstract | The purpose of this study was to determine the sated (near-saturated) hydraulic conductivity, K, of surface soil in the field. With K as a parameter, an equation describing cumulative water runoff from a small-plot sprinkling infiltrometer was developed from an empirical infiltration equation matched to Green-Ampt infiltration theory for constant-intensity water application; also incorporated was a fixed-average static concept of surface water storage on the small soil plot. To evaluate K, this runoff equation was fitted by least squares to field data from a small-plot (1.16mx1.16m) sprinkling infiltrometer on four combinations of soil type and cover: Clermont and Cincinnati silt loam (grass), and Chelsea sandy loam (grass and fiberglass). The runoff equation fitted the field data very well, especially at times greater than 10-15min after the first appearance of water runoff. The order of the mean K values for the four soils-cover combinations was: Chelsea-grass>Chelsea-fiberglass>Cincinnati-grass>Clermont-grass, which is compatible with the physical characteristics of these soils and covers. Of the various differences between mean K values, half were statistically significant. The fixed-average static surface-water storage behaved in reasonable fashion, both physically and statistically, and in regard to site slope and plot cover. | |
dc.subject | HYDRAULIC CONDUCTIVITY | |
dc.subject | INFILTROMETER | |
dc.subject | GREEN-AMPT MODEL | |
dc.subject | INFILTRATION | |
dc.title | MEASUREMENT OF SATED HYDRAULIC CONDUCTIVITY OF SURFACE SOIL IN THE FIELD WITH A SMALL-PLOT SPRINKLING INFILTROMETER | |
dc.type | Статья |
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