ORIGINAL RESEARCH
Temporal Variability of Water Table Depth
in Topohydrosequence of Undulating Ground
Moraine in Central Poland
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Poznań University of Life Sciences, Department of Soil Science and Land Reclamation, Poznań, Poland
Submission date: 2017-09-18
Final revision date: 2017-10-20
Acceptance date: 2017-10-22
Online publication date: 2018-05-09
Publication date: 2018-05-30
Corresponding author
Michał Kozłowski
Poznań University of Life Sciences, Department of Soil Science and Land Reclamation, Piątkowska 94, 60-649 Poznań Poznań, Poland
Pol. J. Environ. Stud. 2018;27(5):2097-2106
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ABSTRACT
Our paper presents the results of determining temporal variability in the water table depth
in topohydrosequence of Retisols/Luvisols and Phaeozems/Gleysols. Assessing temporal variability
in the water table was done using geostatistical and statistical methods. The mean annual water table
depth in soils occupying higher locations in the relief were determined by precipitation in the given and
previous years, but in soils of footslope only by precipitation in a given year. Water table fluctuations
were characterized by a clearly visible temporal structure and low values of random variability. The range
of time correlation of water table was dependent on the relief and was shorter in soils located in lower
parts of the topohydrosequence and longer in wells in the higher part. The contribution of the nugget effect
in variance was also dependent on the location of wells on the slope. The obtained values of the fractal
dimension (D) show a distinct relationship between D and the location of soil in the topohydrosequence.
The values of multivariate analysis indicated that the statistical and geostatistical parameters applied
to assess temporal variability of water table depth were dependent on the soil (well) location in the relief.