Application of EPR Spectroscopy in Studies of Soils from Destroyed Forests

Jerzykiewicz, Maria; Barančíková, Gabriela; Jamroz, Elżbieta; Kałuża-Haładyn, Andrea

doi:10.1007/s00723-018-1055-5

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…In addition, crystal defects in quartz grains provide narrow and characteristic features close to the Landé factor of the free electron. One particular application of EPR to environmental science aims at the temporal evolution as a consequence of fires [31], while it has been used for decades in archaeological dating [32]; [33] gives an overview of environmental applications of EPR.…”

Section: Introductionmentioning

confidence: 99%

Quantifying Crude Oil Contamination in Sand and Soil by EPR Spectroscopy

et al. 2021

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Crude oil frequently contains stable radicals that allow detection by means of EPR spectroscopy. On the other hand, most sands and soils possess significant amounts of iron, manganese or other metallic species that often provide excessively broad EPR signatures combined with well-defined sharp features by quartz defects. In this study, we demonstrate the feasibility to identify oil contamination in natural environments that are subject to oil spillage during production on land, as well as beachside accumulation of marine oil spillage. Straightforward identification of oil is enabled by the radical contributions of asphaltenes, in particular by vanadyl multiplets that are absent from natural soils. This potentially allows for high-throughput soil analysis or the application of mobile EPR scanners.

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Section: Introductionmentioning

confidence: 99%

Quantifying Crude Oil Contamination in Sand and Soil by EPR Spectroscopy

et al. 2021

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“…Electron paramagnetic resonance (EPR) method as the best known method for studies of paramagnetic substances is a good choice for using it for investigation of structure changes occurring in radicals as well as paramagnetic metal ions built-in soil organic matter Schnitzer 1994;Jerzykiewicz et al, 1999;Jerzykiewicz et al, 2019, Swift, 1996Senesi & Loffredo, 2001).…”

Section: Eprmentioning

confidence: 99%

“…X-band spectra were measured using in two magnetic field ranges, toward paramagnetic metal ions (0-5000 gauss and toward semiquinone radicals using field sweep width 100 gauss). More detailed description of the measurements could be found in previous report (Jerzykiewicz et al, 2019). Double integrations were conducted using the WinEPR 2.22 version 12 program (developed by Bruker).…”

Section: Eprmentioning

confidence: 99%

“…Humic fractions, both humic and fulvic acids (FA), have been used to study the properties and function of SOM for hundreds of years (Abbt-Braun & Frimmel, 2002;Olk et al, 2019). Humic fractions, as a significant part of SOM, are universally recognized as the most reactive soil components maintaining the soil fertility and productivity status and are involved in most physical, chemical, and biological processes within the soil environment (Jerzykiewicz et al, 2019;Senesi et al, 2003, Stevenson, 1994, Weber et al, 2018. Using the advanced instrumental analysis, like electron paramagnetic resonance (EPR), proton nuclear magnetic resonance ( 1 H NMR), and Fourier transformed infrared (FTIR) spectroscopy, we can describe the detailed chemical properties of humic substances and follow the direction of humification.…”

Section: Introductionmentioning

confidence: 99%

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Humic fractions as indicators of soil organic matter responses to clear‐cutting in mountain and lowland conditions of southwestern Poland

Jamroz

Jerzykiewicz

2021

Land Degrad Dev

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Clear-cutting means forest removal (stems only) and is the most common type of forest harvesting but undoubtedly has a negative impact on the C budget in soils. This work aimed to describe responses of soil organic matter (SOM) in the mixed coniferous forest following the removal of trees under temperate climate conditions in lowland and mountain regions in southwestern Poland. Investigated soils are described as Brunic Arenosols derived from sand with an average content of total organic carbon (TOC) in the Oa-horizons of 244 gÁkg À1 in the lowland and Dystric Cambisols derived from gneiss; the average content of TOC in the Oa-horizons in the mountain regions was 309 g.kg -1 . Analyzed soils were very acidic in the both regions (pH 2.7-3.5 in the topsoil). In the experiment, two replicated soil profiles were located on each site, both taken after clear-cutting and without any harvesting. Humic fraction was isolated from Oa-and A-horizons; differences between investigated objects were checked with a significance p < 0.05, (n = 16). Using the instrumental analysis, like electron paramagnetic resonance (EPR), proton nuclear magnetic resonance ( 1 H NMR), and Fourier transformed infrared (FTIR) spectroscopy applied to isolated humic fractions, it has been found that clear-cutting alters C cycling and accelerates decomposition in the forest floor, leading to loss of humic fractions in the investigated soils. In the mountain forests, the more labile, low-molecular-weight fulvic fraction decreased as the effect of harvesting practice by 30% in Oa-horizon and by 54% in A-horizon. The analysis of stable radicals by EPR showed a decrease in radical concentration observed for humic acids (HA) from mountain clear-cut areas compared to the undisturbed forest. Results presented in this article have proved there is less aliphatic character of HA molecules from the lowlands, compared to the mountain forest as the effect of clear-cutting. Changes in plant cover observed as a consequence of deforestation lead to the decrease in concentration of humic fractions with different solubility properties.

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