Methods for the assessment of background limits of Cd and Cr in the soil of Moravički district
This paper presents different approaches to background limits assessment of Cr and Cd content in the soil of the Moravički district. The investigated elements have right-skewed asymmetrical distribution, with high dispersion, especially Cr. By using graphical methods (cumulative curve - CDF...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | srp |
| Published: |
Faculty of Forestry, Belgrade
2014-01-01
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| Series: | Glasnik Šumarskog Fakulteta: Univerzitet u Beogradu |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0353-4537/2014/0353-45371409137M.pdf |
| Summary: | This paper presents different approaches to background limits assessment of
Cr and Cd content in the soil of the Moravički district. The investigated
elements have right-skewed asymmetrical distribution, with high dispersion,
especially Cr. By using graphical methods (cumulative curve - CDF and boxplot
) the obtained background limits of the natural contents were Cd 1.40 mg kg-1
and Cr 230 mg kg-1. Natural and log-transformed data were used for empirical
methods, and significantly higher values were obtained than in the natural
simulation. The background limits obtained by empirical methods were
different. The maps show that the largest part of the territory has a
relatively low concentration of investigated elements, whose values are the
most similar to the background limits calculated by [Median+2MAD] methods and
below. In parts of the territory with an increased content the most suitable
computational methods are [Mean ± 2SD] and boxplot - calculation of the upper
threshold. Background limits are given for certain homogenous geochemical
wholes. [Projekat Ministarstva nauke Republike Srbije, br. TP 037006:
Proučavanje uticaja kvaliteta zemljišta i voda za navodnjavanje na efikasniju
proizvodnju poljoprivrednih kultura i očuvanje životne sredine] |
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| ISSN: | 0353-4537 2217-8600 |