Holocene wildfire and vegetation dynamics in Central Yakutia, Siberia, reconstructed from lake-sediment proxies
文献类型：期刊论文
| 作者 | Glueckler, Ramesh1,2; Geng, Rongwei1,3,4; Grimm, Lennart1; Baisheva, Izabella1,2,5; Herzschuh, Ulrike1,2,6; Stoof-Leichsenring, Kathleen R.1; Kruse, Stefan1; Andreev, Andrei1; Pestryakova, Luidmila5; Dietze, Elisabeth1,7,8 |
| 刊名 | FRONTIERS IN ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2022-08-16 |
| 卷号 | 10页码:19 |
| ISSN号 | 2296-701X |
| 关键词 | fire larch boreal forest Russia charcoal pollen ancient DNA |
| DOI | 10.3389/fevo.2022.962906 |
| 通讯作者 | Glueckler, Ramesh(ramesh.glueckler@awi.de) ; Dietze, Elisabeth(elisabeth.dietze@uni-goettingen.de) |
| 英文摘要 | Wildfires play an essential role in the ecology of boreal forests. In eastern Siberia, fire activity has been increasing in recent years, challenging the livelihoods of local communities. Intensifying fire regimes also increase disturbance pressure on the boreal forests, which currently protect the permafrost beneath from accelerated degradation. However, long-term relationships between changes in fire regime and forest structure remain largely unknown. We assess past fire-vegetation feedbacks using sedimentary proxy records from Lake Satagay, Central Yakutia, Siberia, covering the past c. 10,800 years. Results from macroscopic and microscopic charcoal analyses indicate high amounts of burnt biomass during the Early Holocene, and that the present-day, low-severity surface fire regime has been in place since c. 4,500 years before present. A pollen-based quantitative reconstruction of vegetation cover and a terrestrial plant record based on sedimentary ancient DNA metabarcoding suggest a pronounced shift in forest structure toward the Late Holocene. Whereas the Early Holocene was characterized by postglacial open larch-birch woodlands, forest structure changed toward the modern, mixed larch-dominated closed-canopy forest during the Mid-Holocene. We propose a potential relationship between open woodlands and high amounts of burnt biomass, as well as a mediating effect of dense larch forest on the climate-driven intensification of fire regimes. Considering the anticipated increase in forest disturbances (droughts, insect invasions, and wildfires), higher tree mortality may force the modern state of the forest to shift toward an open woodland state comparable to the Early Holocene. Such a shift in forest structure may result in a positive feedback on currently intensifying wildfires. These new long-term data improve our understanding of millennial-scale fire regime changes and their relationships to changes of vegetation in Central Yakutia, where the local population is already being confronted with intensifying wildfire seasons. |
| WOS关键词 | BOREAL FOREST ; CHARCOAL MORPHOLOGIES ; ARCTIC VEGETATION ; EASTERN SIBERIA ; FIRE REGIMES ; PAST FIRE ; POLLEN ; CLIMATE ; RECORDS ; HISTORY |
| 资助项目 | European Research Council ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation[772852] ; Russian Ministry of Education and Science[DI 2544/1-1: 419058007] ; Russian Ministry of Education and Science[448651799] ; AWI INSPIRES (International Science Program for Integrative Research)[2020-0019] ; German Academic Exchange Service e.V. (DAAD) |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000848022500001 |
| 资助机构 | European Research Council ; Deutsche Forschungsgemeinschaft (DFG, German Research Foundation ; Russian Ministry of Education and Science ; AWI INSPIRES (International Science Program for Integrative Research) ; German Academic Exchange Service e.V. (DAAD) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/182296]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Glueckler, Ramesh; Dietze, Elisabeth |
| 作者单位 | 1.Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Polar Terr Environm Syst, Potsdam, Germany 2.Univ Potsdam, Inst Environm Sci & Geog, Potsdam, Germany 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 5.North Eastern Fed Univ Yakutsk, Inst Nat Sci, Yakutsk, Russia 6.Univ Potsdam, Inst Biochem & Biol, Potsdam, Germany 7.German Res Ctr Geosci GFZ, Organ Geochem, Potsdam, Germany 8.Univ Gottingen, Inst Geog, Gottingen, Germany |
| 推荐引用方式 GB/T 7714 | Glueckler, Ramesh,Geng, Rongwei,Grimm, Lennart,et al. Holocene wildfire and vegetation dynamics in Central Yakutia, Siberia, reconstructed from lake-sediment proxies[J]. FRONTIERS IN ECOLOGY AND EVOLUTION,2022,10:19. |
| APA | Glueckler, Ramesh.,Geng, Rongwei.,Grimm, Lennart.,Baisheva, Izabella.,Herzschuh, Ulrike.,...&Dietze, Elisabeth.(2022).Holocene wildfire and vegetation dynamics in Central Yakutia, Siberia, reconstructed from lake-sediment proxies.FRONTIERS IN ECOLOGY AND EVOLUTION,10,19. |
| MLA | Glueckler, Ramesh,et al."Holocene wildfire and vegetation dynamics in Central Yakutia, Siberia, reconstructed from lake-sediment proxies".FRONTIERS IN ECOLOGY AND EVOLUTION 10(2022):19. |
入库方式： OAI收割
来源：地理科学与资源研究所
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