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Estimation of the Spatial Variability of the Soil‐Water Flux
Author(s) -
Rao P. S. C.,
Rao P. V.,
Davidson J. M.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100060042x
Subject(s) - monte carlo method , soil science , taylor series , spatial variability , flux (metallurgy) , mathematics , variance (accounting) , series (stratigraphy) , soil water , environmental science , statistics , data set , hydrology (agriculture) , geology , mathematical analysis , geotechnical engineering , paleontology , materials science , accounting , business , metallurgy
A simple method for estimating the spatial variability of the soil‐water flux from known variability of soil microhydrologic properties is presented. The method is based on the theory of approximating a differentiable function using Taylor‐series expansion (TS‐method). Published data for means and variances of the soil microhydrologic properties were used to estimate the mean and variance of the soil‐water flux in a draining profile of Panoche soil. These values were compared with those estimated using a Monte Carlo simulation procedure (MC‐method) on the same set of data. Relative advantages and disadvantages of these two methods are briefly discussed.