title: Geostatistical Microscale Study of Magnetic Susceptibility in Soil Profile and Magnetic Indicators of Potential Soil Pollution.
abstract: Directional variograms, along the soil profile, can be useful and precise tool that can be used to increase the precision of the assessment of soil pollution. The detail analysis of spatial variability in the soil profile can be also an important part of the standardization of soil magnetometry as a screening method for an assessment of soil pollution related to the dust deposition. The goal of this study was to investigate the correlation between basic parameters of spatial correlations of magnetic susceptibility in the soil profile, such as a range of correlation and a sill, and selected magnetometric indicators of soil pollution. Magnetic indicators were an area under the curve of magnetic susceptibility versus a depth in the soil profile, values of magnetic susceptibility at depths ranging from 1 to 10 cm, and maximum and background values of magnetic susceptibility in the soil profile. These indicators were previously analyzed in the literature. The results showed that a range of correlation of magnetic susceptibility was significantly correlated with magnetic susceptibility measured at depths 1, 2, and 3 cm. It suggests that a range of correlation is a good measure of pollutants' dispersion in the soil profile. The sill of the variogram of magnetic susceptibility was found to be significantly correlated with the area under the curve of plot of magnetic susceptibility that is related to the soil pollution. In consequence, the parameters of microscale spatial variability of magnetic susceptibility in s soil profile are important measures that take into consideration the spatial aspect of s soil pollution.
authors.affiliation: Environmental Engineering Faculty, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland.
authors.forename: Jarosław
authors.initials: J
authors.lastname: Zawadzki
authors.affiliation: Environmental Engineering Faculty, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Fabijańczyk
authors.affiliation: Department of Land Protection, Opole University, Oleska 22, 45-052 Opole, Poland.
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Magiera
authors.affiliation: Institute of Environmental Engineering, Polish Academy of Sciences, Sklodowskiej-Curie 34, 41-819 Zabrze, Poland.
authors.forename: Marzena
authors.initials: M
authors.lastname: Rachwał
keywords: Field magnetometry; Magnetic indicators; Soil magnetic susceptibility; Soil pollution; Spatial correlation