Pyrogenic transformation of tundra soils: Laboratory simulation


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Pyrogenic losses of carbon and nitrogen from the surface horizons of soils in shrub ecosystems of mountain tundra, which are the most affected by fires in natural environments, have been estimated in laboratory simulation tests. The specific features of pyrogenic transformation of the physical and chemical properties and microbiological processes after exposure to high temperatures simulating the effect of fires of different intensity have been identified. Pyrogenic nature of the impact depends not only on the intensity of a fire, but also on the soil type. Its impact on tundra soils leads only to short-term increases in CO2 emissions due to the destruction of pyrogenic organic compounds. A high level of fire impact leads to a significant reduction in microbiological processes in soils and shows no trend toward recovery in the long term, even under optimal conditions.

作者简介

M. Maslov

Department of Soil Science

编辑信件的主要联系方式.
Email: maslov.m.n@yandex.ru
俄罗斯联邦, Moscow, 119991

L. Pozdnyakov

Department of Soil Science

Email: maslov.m.n@yandex.ru
俄罗斯联邦, Moscow, 119991

O. Maslova

Department of Soil Science

Email: maslov.m.n@yandex.ru
俄罗斯联邦, Moscow, 119991

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