Holocene Fire Dynamics in the Altai Mountains and Its Driving Factors

Abstract Fire activity reshapes the successions of forest and steppe ecosystems. However, the long‐term fire history and its driving factors in the Altai Mountains remain poorly documented and understood. In this study, we explore the Holocene fire history and its influencing factors, based on different sizes and morphologies of charcoals in a sediment core from Tolbo Lake in the Altai Mountains. On a millennial‐scale, fire activity was primarily regulated by moisture‐driven biomass availability. After ∼6000 BP, increased precipitation led to higher biomass and enhanced fire activity, with potentially higher human activities contribution. At a centennial‐scale, lower fire frequency corresponded to cold climate events in this study. Ongoing global warming may increase the risk of fires in the Altai region.

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Publication Details

Journal
Geophysical Research Letters
Published
2025-05-02
DOI
https://doi.org/10.1029/2025gl116309
Citations
2
Primary Topic
Geology and Paleoclimatology Research
Type
article
Field-Weighted Citation Impact
2.60

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article

Holocene Fire Dynamics in the Altai Mountains and Its Driving Factors

Mingrui Qiang, Lixiong Xiang, Otgonbayar Demberel, Xuemei Ren et al.
2 citations
Geophysical Research Letters
Geology and Paleoclimatology Research
2.60
article

Holocene Fire Dynamics in the Altai Mountains and Its Driving Factors

Mingrui Qiang, Lixiong Xiang, Otgonbayar Demberel, Xuemei Ren, Yu Hu, Jiawu Zhang, Xiaozhong Huang, Jun Zhang, Yuan Li, Ling Wang, Hongming Chen, Xiaoyan Mu, Jule Xiao
article en
2 citations

Abstract

Abstract Fire activity reshapes the successions of forest and steppe ecosystems. However, the long‐term fire history and its driving factors in the Altai Mountains remain poorly documented and understood. In this study, we explore the Holocene fire history and its influencing factors, based on different sizes and morphologies of charcoals in a sediment core from Tolbo Lake in the Altai Mountains. On a millennial‐scale, fire activity was primarily regulated by moisture‐driven biomass availability. After ∼6000 BP, increased precipitation led to higher biomass and enhanced fire activity, with potentially higher human activities contribution. At a centennial‐scale, lower fire frequency corresponded to cold climate events in this study. Ongoing global warming may increase the risk of fires in the Altai region.

Geophysical Research LettersVol. 52(9)
Yunnan Normal University (CN), China West Normal University (CN), South China Normal University (CN), Chinese Academy of Sciences (CN), Inner Mongolia Normal University (CN), Northwest Institute of Eco-Environment and Resources (CN), Institute of Geology and Geophysics (CN), National University of Mongolia (MN), Lanzhou University (CN)
National Natural Science Foundation of China, Postdoctoral Research Foundation of China
Openalex Percentile: Top 12%
Geology and Paleoclimatology Research
2.60
DOIOpen Access PDFOpenAlex
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