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a Dep. of Soil Science, Univ. of Saskatchewan, Saskatoon, SK, Canada S7H 5A8
gary.kachanoski{at}usask.ca
A quantitative description of water infiltration under constant flux boundary conditions is useful for predicting water flow and chemical transport processes occurring in surface soils. A new quasi-analytical solution for water storage to a fixed depth for constant flux infiltration is presented. The solution, based on the fluxconcentration relationship, allows general forms of soil hydraulic functions to be used and provides a direct interpretation of measurements from vertically installed time domain reflectometry probes. To evaluate the solution, a constant flux infiltration experiment was conducted and the hydraulic parameters for the experimental site were determined independently. The solution predictions using the approximate fluxconcentration relationship for linear soils were essentially identical to an existing analytical solution using the Broadbridge and White form of hydraulic functions and to the measurements.
Abbreviations: TDR, time domain reflectometry
This article has been cited by other articles:
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B.C. Si and R.G. Kachanoski Estimating Soil Hydraulic Properties During Constant Flux Infiltration: Inverse Procedures Soil Sci. Soc. Am. J., March 1, 2000; 64(2): 439 - 449. [Abstract] [Full Text] |
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