Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review
The frequency of forest fires has increased dramatically due to climate change. The occurrence of forest fires affects the carbon and nitrogen cycles and react to climate change to form a positive feedback mechanism. These effects further impact the distribution of microbial biomass carbon (MBC) and...
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ftdoajarticles:oai:doaj.org/article:67d3583f1ca44c77b2a5806a69f3b78c 2024-09-15T18:02:27+00:00 Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review Jing Liu Xiaoying Li Tao Xu Yilun Han Jingtao Li Yang Shen Kui Chen 2024-03-01T00:00:00Z https://doi.org/10.3390/f15030501 https://doaj.org/article/67d3583f1ca44c77b2a5806a69f3b78c EN eng MDPI AG https://www.mdpi.com/1999-4907/15/3/501 https://doaj.org/toc/1999-4907 doi:10.3390/f15030501 1999-4907 https://doaj.org/article/67d3583f1ca44c77b2a5806a69f3b78c Forests, Vol 15, Iss 3, p 501 (2024) forest fires fire intensity permafrost degradation soil microbial community structure MBC MBN Plant ecology QK900-989 article 2024 ftdoajarticles https://doi.org/10.3390/f15030501 2024-08-05T17:49:45Z The frequency of forest fires has increased dramatically due to climate change. The occurrence of forest fires affects the carbon and nitrogen cycles and react to climate change to form a positive feedback mechanism. These effects further impact the distribution of microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) and the soil microbial community structure. In addition, permafrost degradation can significantly affect the microorganisms in the soil. Based on these findings, this review examines the effects of fire intensity and post-fire recovery time on permafrost, the soil microbial community, MBC, MBN, and their interrelationships. This review demonstrated that (1) fires alter the condition of surface vegetation, reduce the organic layer thickness, redistribute snow, accelerate permafrost degradation, and even lead to permanent changes, where the restoration of the pre-fire state would require several decades or even centuries; (2) soil microbial community structure, soil MBC, and MBN negatively correlate with fire intensity, and the effects become more pronounced with increasing fire intensity; and (3) the structural diversity and stability of the soil microbial community were improved with time, and the amount of MBC and MBN increases as the years after a fire go by; it would still take more than ten years to recover to the pre-fire level. However, the relationship between permafrost degradation and soil microbes after forest fires is still unclear due to a lack of quantitative research on the mechanisms underlying the changes in soil microorganisms resulting from fire-induced permafrost degradation. Therefore, expanding quantitative studies and analyses of the mechanisms of interactions between forest fires, permafrost, and soil microorganisms can provide a scientific basis for understanding ecosystem carbon pools and dual-carbon targets in Arctic–boreal permafrost regions. Article in Journal/Newspaper Climate change permafrost Directory of Open Access Journals: DOAJ Articles Forests 15 3 501 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
forest fires fire intensity permafrost degradation soil microbial community structure MBC MBN Plant ecology QK900-989 |
spellingShingle |
forest fires fire intensity permafrost degradation soil microbial community structure MBC MBN Plant ecology QK900-989 Jing Liu Xiaoying Li Tao Xu Yilun Han Jingtao Li Yang Shen Kui Chen Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
topic_facet |
forest fires fire intensity permafrost degradation soil microbial community structure MBC MBN Plant ecology QK900-989 |
description |
The frequency of forest fires has increased dramatically due to climate change. The occurrence of forest fires affects the carbon and nitrogen cycles and react to climate change to form a positive feedback mechanism. These effects further impact the distribution of microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) and the soil microbial community structure. In addition, permafrost degradation can significantly affect the microorganisms in the soil. Based on these findings, this review examines the effects of fire intensity and post-fire recovery time on permafrost, the soil microbial community, MBC, MBN, and their interrelationships. This review demonstrated that (1) fires alter the condition of surface vegetation, reduce the organic layer thickness, redistribute snow, accelerate permafrost degradation, and even lead to permanent changes, where the restoration of the pre-fire state would require several decades or even centuries; (2) soil microbial community structure, soil MBC, and MBN negatively correlate with fire intensity, and the effects become more pronounced with increasing fire intensity; and (3) the structural diversity and stability of the soil microbial community were improved with time, and the amount of MBC and MBN increases as the years after a fire go by; it would still take more than ten years to recover to the pre-fire level. However, the relationship between permafrost degradation and soil microbes after forest fires is still unclear due to a lack of quantitative research on the mechanisms underlying the changes in soil microorganisms resulting from fire-induced permafrost degradation. Therefore, expanding quantitative studies and analyses of the mechanisms of interactions between forest fires, permafrost, and soil microorganisms can provide a scientific basis for understanding ecosystem carbon pools and dual-carbon targets in Arctic–boreal permafrost regions. |
format |
Article in Journal/Newspaper |
author |
Jing Liu Xiaoying Li Tao Xu Yilun Han Jingtao Li Yang Shen Kui Chen |
author_facet |
Jing Liu Xiaoying Li Tao Xu Yilun Han Jingtao Li Yang Shen Kui Chen |
author_sort |
Jing Liu |
title |
Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
title_short |
Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
title_full |
Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
title_fullStr |
Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
title_full_unstemmed |
Effects of Forest Fires on Boreal Permafrost and Soil Microorganisms: A Review |
title_sort |
effects of forest fires on boreal permafrost and soil microorganisms: a review |
publisher |
MDPI AG |
publishDate |
2024 |
url |
https://doi.org/10.3390/f15030501 https://doaj.org/article/67d3583f1ca44c77b2a5806a69f3b78c |
genre |
Climate change permafrost |
genre_facet |
Climate change permafrost |
op_source |
Forests, Vol 15, Iss 3, p 501 (2024) |
op_relation |
https://www.mdpi.com/1999-4907/15/3/501 https://doaj.org/toc/1999-4907 doi:10.3390/f15030501 1999-4907 https://doaj.org/article/67d3583f1ca44c77b2a5806a69f3b78c |
op_doi |
https://doi.org/10.3390/f15030501 |
container_title |
Forests |
container_volume |
15 |
container_issue |
3 |
container_start_page |
501 |
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1810439909595414528 |