Assessment of physicochemical parameters and metal distribution in bog peat of the western segment of the North European part of Russia (Arkhangelsk region)

Yakovlev, Evgeny; Дружинина, А. С.; Druzhinin, S. I.; Bedrina, Daria; Орлов, А. В.

doi:10.1007/s11356-020-10501-z

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…In temperate South America, peat bogs are dominated by Sphagnum moss 13 and are poor in nutrients (ombrotrophic) 14 . Ombrotrophic bogs are hydraulically isolated and receive all nutrients, including major and trace elements, by atmospheric depositions and precipitation 15 .…”

Section: Introductionmentioning

confidence: 99%

A multi-analytical approach to studying the chemical composition of typical carbon sink samples

Astolfi

Massimi

Rapa

et al. 2023

Sci Rep

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Peatlands in southern South America (Tierra del Fuego region, TdF) play a key role in the ecological dynamics of Patagonia. It is, therefore, necessary to increase our knowledge and awareness of their scientific and ecological value to ensure their conservation. This study aimed to assess the differences in the distribution and accumulation of elements in peat deposits and Sphagnum moss from the TdF. Chemical and morphological characterization of the samples was carried out using various analytical techniques, and total levels of 53 elements were determined. Furthermore, a chemometric differentiation based on the elemental content of peat and moss samples was performed. Some elements (Cs, Hf, K, Li, Mn, Na, Pb, Rb, Si, Sn, Ti and Zn) showed significantly higher contents in moss samples than in peat samples. In contrast, only Mo, S and Zr were significantly higher in peat samples than in moss samples. The results obtained highlight the ability of moss to accumulate elements and to act as a means to facilitate the entry of elements into peat samples. The valuable data obtained in this multi-methodological baseline survey can be used for more effective conservation of biodiversity and preservation of the ecosystem services of the TdF.

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Section: Introductionmentioning

confidence: 99%

A multi-analytical approach to studying the chemical composition of typical carbon sink samples

Astolfi

Massimi

Rapa

et al. 2023

Sci Rep

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Sphagnum moss and peat comparative study: Metal release, binding properties and antioxidant activity

Astolfi,

Frezzini,

Massimi

et al. 2024

PLoS ONE

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Peat is the main constituent of cultivation substrates and a precious non-renewable fossil material. Peatlands provide important ecosystem services and allow the absorption and storage of carbon. Protecting peatlands helps tackle climate change and contributes to biodiversity conservation. Due to its importance, it is necessary to implement strategies to reduce the use of peat, such as replacing it with biomass-based alternative growing media constituents, such as Sphagnum moss. In this study, we compared the metal release and binding properties at two different pH, antioxidant activity, and total phenolic content of peat and Sphagnum moss from the Tierra del Fuego (TdF) region of southern Patagonia. Levels of the elements were determined by inductively coupled plasma mass spectrometry (ICP-MS), while the types and amounts of functional groups were characterized and compared using Fourier transform infrared (FTIR) spectroscopy. The total phenol level and antioxidant capacity were assessed using the Folin-Ciocalteu method and 2,2-diphenyl-1-picrylhydrazyl test. There are generally higher concentrations of leachable elements in peat than in Sphagnum moss at pH = 2, except Cs, Rb, Ti, and Zr. In contrast, at pH = 5, levels of all leached elements are highest in Sphagnum moss. Sphagnum moss shows a higher metal adsorption capacity than peat, except for Be, Mn, Tl, and Zn. Finally, the results showed that both matrices contained similar total phenolic contents: 0.018 ± 0.011 mg gallic acid equivalent (GAE) per gram dry sample for peat and 0.020 ± 0.007 mg GAE g-1 for Sphagnum moss. Instead, Sphagnum moss extracts showed a significantly higher antioxidant activity [0.026 ± 0.028 mmol Trolox equivalents (TE) g-1] than that estimated in peat (0.009 ± 0.005 mmol TE g-1). Humic acids, carboxylic acids, and phenolic and lignin groups were identified as the functional groups that mainly determined the antioxidant activity of the Sphagnum moss compared to peat. The present study resulted in an advancement of knowledge of these materials for more thoughtful future use and possible replacements.

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Assessment of physicochemical parameters and metal distribution in bog peat of the western segment of the North European part of Russia (Arkhangelsk region)

Cited by 2 publications

References 39 publications

A multi-analytical approach to studying the chemical composition of typical carbon sink samples

A multi-analytical approach to studying the chemical composition of typical carbon sink samples

Sphagnum moss and peat comparative study: Metal release, binding properties and antioxidant activity

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