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 diffe...
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-05-01
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| Series: | Geophysical Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2025GL116309 |
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| Summary: | 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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| ISSN: | 0094-8276 1944-8007 |