Indicator Significance of the Extinction Coefficients of the Alkaline Extracts of Weakly Decomposed Peats for Reconstructing the Hydrothermal Conditions of Western Siberian Bogs

The paper presents the results of comprehensive studies of the general technical properties and electronic spectra of the humus substances of the Boltnoe high-moor peat section with a thickness of 720 cm (southern taiga in Western Siberia). It was found that high-moor peats mainly exhibited low degr...

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Bibliographic Details
Published in:Solid fuel chemistry 2019-07, Vol.53 (4), p.214-220
Main Authors: Savel’eva, A. V., Preis, Yu. I.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Coefficients
Composition effects
Decomposition
Electronic spectra
Humus
Peat
Physical Chemistry
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Summary:The paper presents the results of comprehensive studies of the general technical properties and electronic spectra of the humus substances of the Boltnoe high-moor peat section with a thickness of 720 cm (southern taiga in Western Siberia). It was found that high-moor peats mainly exhibited low degrees of decomposition (on average, 10%) and humification (0.6). Considerable variations in the degree of humification (0.14–1.30) within the deposit were established; the extinction coefficients of the alkaline extracts of peat varied over wide ranges: E 465 0.25–2.41 and E 665 0.08–0.43. A crucial effect of the botanical composition of peat on the spectral coefficients was established. A decrease in the indicator significance of the extinction coefficients of the alkaline extracts of weakly decomposed peats for the reconstruction of the hydrothermal conditions of Western Siberian bogs was found.
ISSN:0361-5219
1934-8029
DOI:10.3103/S0361521919040104