Abstract
AbstractThe solute load from soil into the groundwater plays an important role in considerations about the causes of groundwater pollution. Solute concentrations in the uppermost groundwater can be used to characterize the solute input into the groundwater in a particular area. Such interpretation, however, depends on a knowledge of the spatial variability and patterns of these concentrations.Geostatistical methods (semivariance and autocorrelation), spectral and cospectral analysis, and Fourier transform smoothing of data were used to quantify spatial relationships of the solute concentrations determined along 30 m transects. Electrical conductivity and calcium concentration data of the uppermost groundwater in a sandy soil under arable land were used for testing the procedures mentioned above. The range of the semi‐variogram was found to be 6 m. Spectral analysis and Fourier transform smoothing yielded a periodical variation of 12 m length for this data.
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