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Comparison of single- and double-ring infiltrometer methods on stony soils

Koen Verbist (UGent) , Sabine Torfs, Wim Cornelis (UGent) , Ricardo Oyarzún, Guido Soto and Donald Gabriels
(2010) VADOSE ZONE JOURNAL. 9(2). p.462-475
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Abstract
Infiltration measurements to determine the field saturated hydraulic conductivity (Kfs) in arid lands are often plagued by large variations that can be attributed to soil heterogeneity, the measurement method, the number of replications, and the Kfs calculation method used. This study addressed the question of how comparable are two different measurement methods, the single-ring infiltrometer (SR) and double-ring infiltrometer (DR), when applied at three locations in a semiarid part of Chile that show moderate (15%) to high (55%) stoniness. Additionally, Kfs variations due to different calculation methods for the same measurement method were thoroughly investigated, considering nine methods for the SR and 10 methods for the DR. Results showed that different calculation techniques gave sometimes significantly different estimates of Kfs when using the same data set, and those relative differences were conserved between measurement locations. When comparing the same calculation technique for both SR and DR, both methods gave equivalent Kfs estimates for each location. The SR infiltration measurements were modeled better using a transient approach, while infiltration models considering steady state performed better with the DR.
Keywords
WATER-RETENTION, SATURATED HYDRAULIC CONDUCTIVITY, FRAGMENTS, FLOW, TENSION, SIZE, PONDED INFILTRATION, VERTICAL INFILTRATION, GENERALIZED SOLUTION

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MLA
Verbist, Koen, et al. “Comparison of Single- and Double-Ring Infiltrometer Methods on Stony Soils.” VADOSE ZONE JOURNAL, vol. 9, no. 2, 2010, pp. 462–75, doi:10.2136/vzj2009.0058.
APA
Verbist, K., Torfs, S., Cornelis, W., Oyarzún, R., Soto, G., & Gabriels, D. (2010). Comparison of single- and double-ring infiltrometer methods on stony soils. VADOSE ZONE JOURNAL, 9(2), 462–475. https://doi.org/10.2136/vzj2009.0058
Chicago author-date
Verbist, Koen, Sabine Torfs, Wim Cornelis, Ricardo Oyarzún, Guido Soto, and Donald Gabriels. 2010. “Comparison of Single- and Double-Ring Infiltrometer Methods on Stony Soils.” VADOSE ZONE JOURNAL 9 (2): 462–75. https://doi.org/10.2136/vzj2009.0058.
Chicago author-date (all authors)
Verbist, Koen, Sabine Torfs, Wim Cornelis, Ricardo Oyarzún, Guido Soto, and Donald Gabriels. 2010. “Comparison of Single- and Double-Ring Infiltrometer Methods on Stony Soils.” VADOSE ZONE JOURNAL 9 (2): 462–475. doi:10.2136/vzj2009.0058.
Vancouver
1.
Verbist K, Torfs S, Cornelis W, Oyarzún R, Soto G, Gabriels D. Comparison of single- and double-ring infiltrometer methods on stony soils. VADOSE ZONE JOURNAL. 2010;9(2):462–75.
IEEE
[1]
K. Verbist, S. Torfs, W. Cornelis, R. Oyarzún, G. Soto, and D. Gabriels, “Comparison of single- and double-ring infiltrometer methods on stony soils,” VADOSE ZONE JOURNAL, vol. 9, no. 2, pp. 462–475, 2010.
@article{937471,
  abstract     = {{Infiltration measurements to determine the field saturated hydraulic conductivity (Kfs) in arid lands are often plagued by large variations that can be attributed to soil heterogeneity, the measurement method, the number of replications, and the Kfs calculation method used. This study addressed the question of how comparable are two different measurement methods, the single-ring infiltrometer (SR) and double-ring infiltrometer (DR), when applied at three locations in a semiarid part of Chile that show moderate (15%) to high (55%) stoniness. Additionally, Kfs variations due to different calculation methods for the same measurement method were thoroughly investigated, considering nine methods for the SR and 10 methods for the DR. Results showed that different calculation techniques gave sometimes significantly different estimates of Kfs when using the same data set, and those relative differences were conserved between measurement locations. When comparing the same calculation technique for both SR and DR, both methods gave equivalent Kfs estimates for each location. The SR infiltration measurements were modeled better using a transient approach, while infiltration models considering steady state performed better with the DR.}},
  author       = {{Verbist, Koen and Torfs, Sabine and Cornelis, Wim and Oyarzún, Ricardo and Soto, Guido and Gabriels, Donald}},
  issn         = {{1539-1663}},
  journal      = {{VADOSE ZONE JOURNAL}},
  keywords     = {{WATER-RETENTION,SATURATED HYDRAULIC CONDUCTIVITY,FRAGMENTS,FLOW,TENSION,SIZE,PONDED INFILTRATION,VERTICAL INFILTRATION,GENERALIZED SOLUTION}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{462--475}},
  title        = {{Comparison of single- and double-ring infiltrometer methods on stony soils}},
  url          = {{http://doi.org/10.2136/vzj2009.0058}},
  volume       = {{9}},
  year         = {{2010}},
}
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