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Simulation of SmolderingCombustion of Organic Horizons at Pine and Spruce Boreal Forests with Lab-Heating Experimentsстатья Исследовательская статья
- Авторы: Gorbach N., Startsev V., Mazur A., Milanovskiy E., Prokushkin A., Dymov A.
- Журнал: Sustainability
- Том: 14
- Год издания: 2022
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 1
- Последняя страница: 22
- Номер статьи: 16772
- DOI: 10.3390/su142416772
- Аннотация: Wildfire is a threat for many boreal ecosystems and induces deep modifications in organic horizons. In this paper, we have considered fire-induced changes to the organic horizon properties.The effect of fire was studied by using a forest litter burning experiment. Sample heating was performed in the lab at fixed temperatures (200, 300 and 500 °C), on a set of O horizons developedunder pine (Flavocetraria-Pinetum association) and spruce (Piceetum hylocomium splendens association)forest litters. Litters were analyzed in terms of pH, specific electrical conductivity, specificsurface area, total carbon (Ctot) and nitrogen (Ntot) content, water-soluble carbon and nitrogen, δ13C and δ15N stable isotope analysis and 13C NMR spectroscopy. The mean pH values increased from~5 to ~8.2 with an increase in the influence of temperature. The specific electrical conductivity and specific surface area properties increased as well from ~255 to ~432 and from 0.42 to 1.84, respectively. Ctot and Ntot decreased, but at the same time the inorganic carbon content increased. The aromaticity of organic matter after the fire increased. The results of the present study show that organic horizons are changed by wildfire and this discussion made it clear to help with the understanding how fire affects organic matter.
- Добавил в систему: Дымов Алексей Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | sustainability-14-16772_dekabr.pdf | 1,3 МБ | 15 декабря 2022 [Dym] |