Effect of hydraulic conductivity probability distribution function on simulated solute leaching
| Autor: | Richard A C Cooke, Frank E. Woeste, Saied Mostaghimi |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Materials science
Ecological Modeling Monte Carlo method Probability density function Soil science Pollution Physics::Geophysics Hydraulic conductivity Log-normal distribution Environmental Chemistry Geotechnical engineering Spatial variability Leaching (agriculture) Waste Management and Disposal Beta distribution Groundwater Water Science and Technology |
| Zdroj: | Water Environment Research. 67:159-168 |
| ISSN: | 1061-4303 |
| DOI: | 10.2175/106143095x131303 |
| Popis: | In this paper, the effect of fitting several different probability-distribution functions to hydraulic conductivity or pore-water velocity values, in the simulation of the movement of a nonreactive solute through the soil, is evaluated. The simulation of solute transport in the soil was found to be sensitive to the distribution fitted to pore-water velocity. The log-Gaussian (log-normal) distribution, though traditionally used, is not necessarily the best distribution for characterizing the spatial variability of saturated hydraulic conductivity, pore-water velocity, or infiltrability. The upper tails of the simulated relative concentration series are best fitted by beta distributions, regardless of the input distribution used for pore-water velocity |
| Databáze: | OpenAIRE |
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