IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Holocene wildfire regimes in western Siberia: interaction between peatland moisture conditions and the composition of plant functional types
Feurdean, Angelica1,2,3; Diaconu, Andrei-Cosmin4; Pfeiffer, Mirjam2; Galka, Mariusz5; Hutchinson, Simon M.6; Butiseaca, Geanina2; Gorina, Natalia7; Tonkov, Spassimir8; Niamir, Aidin2; Tantau, Ioan4; Zhang, Hui9; Kirpotin, Sergey10,11
2022-06-03
Source PublicationCLIMATE OF THE PAST
ISSN1814-9324
Volume18Issue:6Pages:1255-1274
AbstractWildfire is the most common disturbance type in boreal forests and can trigger significant changes in forest composition. Waterlogging in peatlands determines the degree of tree cover and the depth of the burnt horizon associated with wildfires. However, interactions between peatland moisture, vegetation composition and flammability, and fire regime in forest and forested peatland in Eurasia remain largely unexplored, despite their huge extent in boreal regions. To address this knowledge gap, we reconstructed the Holocene fire regime, vegetation composition, and peatland hydrology at two sites located in predominantly light taiga (Pinus sylvestris Betula) with interspersed dark taiga communities (Pinus sibirica, Picea obovata, Abies sibirica) in western Siberia in the Tomsk Oblast, Russia. We found marked shifts in past water levels over the Holocene. The probability of fire occurrence and the intensification of fire frequency and severity increased at times of low water table (drier conditions), enhanced fuel dryness, and an intermediate dark-to-light taiga ratio. High water level, and thus wet peat surface conditions, prevented fires from spreading on peatland and surrounding forests. Deciduous trees (i.e. Betula) and Sphagnum were more abundant under wetter peatland conditions, and conifers and denser forests were more prevalent under drier peatland conditions. On a Holocene scale, severe fires were recorded between 7.5 and 4.5 ka with an increased proportion of dark taiga and fire avoiders (Pinus sibirica at Rybnaya and Abies sibirica at Ulukh-Chayakh) in a predominantly light taiga and fire-resister community characterised by Pinus sylvestris and lower local water level. Severe fires also occurred over the last 1.5 kyr and were associated with a declining abundance of dark taiga and fire avoiders, an expansion of fire invaders (Betula), and fluctuating water tables. These findings suggest that frequent, high-severity fires can lead to compositional and structural changes in forests when trees fail to reach reproductive maturity between fire events or where extensive forest gaps limit seed dispersal. This study also shows prolonged periods of synchronous fire activity across the sites, particularly during the early to mid-Holocene, suggesting a regional imprint of centennial- to millennial-scale Holocene climate variability on wildfire activity. Humans may have affected vegetation and fire from the Neolithic; however, increasing human presence in the region, particularly at the Ulukh-Chayakh Mire over the last 4 centuries, drastically enhanced ignitions compared to natural background levels. Frequent warm and dry spells predicted by climate change scenarios for Siberia in the future will enhance peatland drying and may convey a competitive advantage to conifer taxa. However, dry conditions will probably exacerbate the frequency and severity of wildfire, disrupt conifers' successional pathway, and accelerate shifts towards deciduous broadleaf tree cover. Furthermore, climate-disturbance-fire feedbacks will accelerate changes in the carbon balance of boreal peatlands and affect their overall future resilience to climate change.
DOI10.5194/cp-18-1255-2022
Funding OrganizationGerman Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030)
WOS KeywordFIRE-REGIME ; CLIMATE-CHANGE ; BOREAL FOREST ; CHARCOAL MORPHOLOGIES ; DYNAMICS ; RECORDS ; SEDIMENTARY ; IMPACT ; LAKE ; RECONSTRUCTIONS
Language英语
Funding ProjectGerman Research Foundation[FE-1096/6-1] ; Russian Science Foundation[20-6746018] ; Tomsk State University Development Programme (Priority-2030)
Funding OrganizationGerman Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030) ; German Research Foundation ; German Research Foundation ; Russian Science Foundation ; Russian Science Foundation ; Tomsk State University Development Programme (Priority-2030) ; Tomsk State University Development Programme (Priority-2030)
WOS Research AreaGeology ; Meteorology & Atmospheric Sciences
WOS SubjectGeosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS IDWOS:000805203400001
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105988
Collection新生代地质与环境院重点实验室
Corresponding AuthorFeurdean, Angelica
Affiliation1.Goethe Univ, Dept Phys Geog, Altenhoferallee 1, D-60438 Frankfurt, Germany
2.Senckenberg Biodivers & Climate Res Ctr SBiK F, Senckenberganlage 25, D-60325 Frankfurt, Germany
3.Babes Bolyai Univ, STAR UBB Inst, Kogalniceanu 1, Cluj Napoca 400084, Romania
4.Babes Bolyai Univ, Dept Geol, Kogalniceanu 1, Cluj Napoca 400084, Romania
5.Univ Lodz, Fac Biol & Environm Protect, Dept Biogeog Paleoecol & Nat Conservat, Banacha 1-3, Lodz, Poland
6.Univ Salford, Sch Sci Engn & Environm, Salford M5 4WT, Lancs, England
7.Natl Tomsk State Univ, Dept Ecol Nat Use & Environm Engn, Lenina Pr 36, Tomsk 634050, Russia
8.Sofia Univ St Kliment Ohridski, Fac Biol, Lab Palynol, Dragan Tsankov 8, Sofia 1164, Bulgaria
9.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
10.Tuvan State Univ, Dept Org Sci Res, Lenina 36, Kyzyl 667000, Russia
11.Tomsk State Univ, Bioclim Land Ctr Excellence, Natl Res, Lenina Pr 36, Tomsk 634050, Russia
Recommended Citation
GB/T 7714
Feurdean, Angelica,Diaconu, Andrei-Cosmin,Pfeiffer, Mirjam,et al. Holocene wildfire regimes in western Siberia: interaction between peatland moisture conditions and the composition of plant functional types[J]. CLIMATE OF THE PAST,2022,18(6):1255-1274.
APA Feurdean, Angelica.,Diaconu, Andrei-Cosmin.,Pfeiffer, Mirjam.,Galka, Mariusz.,Hutchinson, Simon M..,...&Kirpotin, Sergey.(2022).Holocene wildfire regimes in western Siberia: interaction between peatland moisture conditions and the composition of plant functional types.CLIMATE OF THE PAST,18(6),1255-1274.
MLA Feurdean, Angelica,et al."Holocene wildfire regimes in western Siberia: interaction between peatland moisture conditions and the composition of plant functional types".CLIMATE OF THE PAST 18.6(2022):1255-1274.
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