Vegetation of Yakutia: Elements of Ecology and Plant Sociology

Исаев, А. П.; Протопопов, А. В.; Protopopova, V. V.; Egorova, Alexandra A.; Timofeyev, P.A.; Николаев, А. Н.; Shurduk, I.F.; Lytkina, L. P.; Ermakov, Nikolai; Nikitina, Natalya; Efimova, A.P.; Zakharova, V. I.; Cherosov, Mikhail; Николин, Е. Г.; Sosina, N. K.; Troeva, Elena; Gogoleva, P. A.; Kuznetsova, L. V.; Pestryakov, B. N.; Миронова, С. И.; Sleptsova, N. P.

doi:10.1007/978-90-481-3774-9_3

Cited by 22 publications

(32 citation statements)

References 5 publications

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“…Pinus are consistent with modern light taiga (Katamura et al, 2009). Furthermore, the absence of Pinus macrofossils in central Yakutia throughout the Holocene (Binney et al, 2009) also suggests a restricted distribution of Pinus, possibly to sandy places such as river banks (Isaev et al, 2010).…”

Section: G26)supporting

confidence: 67%

Pollen-based quantitative land-cover reconstruction for northern Asia during the last 40 ka

Cao

Tian

et al. 2018

Preprint

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Abstract. We collected the available relative pollen productivity (RPP) estimates for 27 major pollen taxa from Eurasia and applied them to estimate plant abundances during the last 40 cal. ka BP (calibrated thousand-year before the present) using pollen counts from 203 fossil pollen records in northern Asia (north of 40° N). These pollen records were organised into 42 site groups; and regional mean plant abundances were calculated using the REVEALS (Regional Estimates of Vegetation Abundance from Large Sites) model. Time-series clustering, constrained hierarchical clustering, and detrended canonical correspondence analysis were performed to investigate the regional pattern, time, and strength of vegetation changes, respectively. Reconstructed regional land cover for each site group is generally consistent with in situ modern vegetation in that vegetation changes within the regions are characterized by minor changes in the abundance of major taxa rather than by invasions of new taxa, particularly during the Holocene. We argue that pollen-based REVEALS estimates of plant abundances should be a more reliable reflection of the vegetation as pollen may overestimate the turnover, particularly when a high pollen producer invades areas dominated by low pollen producers. Comparisons with vegetation-independent climate records show that climate change is the primary factor driving land-cover changes at broad spatial and temporal scales. Vegetation changes in certain regions or periods, however, could not be explained by direct climate change, for example inland Siberia, where a sharp increase in evergreen conifer tree abundance occurred at ca. 7~8 cal. ka BP despite an unchanging climate, potentially reflecting their response to complex climate-permafrost-fire-vegetation interactions and thus a possible lagged climate response.

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Section: G26)supporting

confidence: 67%

Pollen-based quantitative land-cover reconstruction for northern Asia during the last 40 ka

Cao

Tian

et al. 2018

Preprint

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“…Vegetation turnover on the Tibetan Plateau inferred from pollen percentages is documented to overestimate the strength of vegetation changes (Wang and Herzschuh, 2011 (Katamura et al, 2009). Furthermore, the absence of Pinus macrofossils in central Yakutia throughout the Holocene (Binney et al, 2009) also suggests a re- stricted distribution of Pinus, possibly to sandy places such as river banks (Isaev et al, 2010).…”

Section: Land-cover Changes and Potential Biasesmentioning

confidence: 99%

Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP

Cao

Tian

et al. 2019

Clim. Past

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We collected the available relative pollen productivity estimates (PPEs) for 27 major pollen taxa from Eurasia and applied them to estimate plant abundances during the last 40 ka cal BP (calibrated thousand years before present) using pollen counts from 203 fossil pollen records in northern Asia (north of 40 • N). These pollen records were organized into 42 site groups and regional mean plant abundances calculated using the REVEALS (Regional Estimates of Vegetation Abundance from Large Sites) model. Timeseries clustering, constrained hierarchical clustering, and detrended canonical correspondence analysis were performed to investigate the regional pattern, time, and strength of vegetation changes, respectively. Reconstructed regional plant functional type (PFT) components for each site group are generally consistent with modern vegetation in that vegetation changes within the regions are characterized by minor changes in the abundance of PFTs rather than by an increase in new PFTs, particularly during the Holocene. We argue that pollen-based REVEALS estimates of plant abundances should be a more reliable reflection of the vegetation as pollen may overestimate the turnover, particularly when a high pollen producer invades areas dominated by low pollen producers. Comparisons with vegetation-independent climate records show that climate change is the primary factor driving land-cover changes at broad spatial and temporal scales. Vegetation changes in certain regions or periods, however, could not be explained by direct climate change, e.g. inland Siberia, where a sharp increase in evergreen conifer tree abundance occurred at ca. 7-8 ka cal BP despite an unchanging climate, potentially reflecting their response to complex climate-permafrost-fire-vegetation interactions and thus a possible long-term lagged climate response.

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“…The area belongs to the "Anabar-Lena subarctic" geobotanical sub-province (Isaev et al, 2010), described on the agriculture map of Yakutia (Matveev, 1989) as having a "widely spaced dwarf shrub tundra (Betula exilis, Salix pulchra), dwarf shrub tundra (Betula exilis, Salix pulchra together with Cetraria cucullata, Alectoria ochroleuca, Coelocaulon divergens) and tundra bog" vegetation type. …”

Section: Geographic Settingmentioning

confidence: 99%

“…The polygon is located in the Anabar-Lena subarctic zone (Isaev et al, 2010), with low summer temperatures and a short growing season. The present-day vegetation covering the investigated 07-SA-LY polygon (Fig.…”

Section: Small-scale Spatial Structure Of Polygonsmentioning

confidence: 99%

“…The present-day vegetation covering the investigated 07-SA-LY polygon (Fig. 3) is therefore dominated by typical elements of the arctic and boreal floral zone (Abaimov, 2010;Isaev et al, 2010;Jäger, 2005), such as Andromeda polifolia and Vaccinium sp. In these zones, sites with water-saturated soils are dominated by polygonal tundra or polygonal forest-tundra that typically show a well-developed microstructure of vegetation types tracing the hydrological microhabitats.…”

Section: Small-scale Spatial Structure Of Polygonsmentioning

confidence: 99%

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River flooding as a driver of polygon dynamics: modern vegetation data and a millennial peat record from the Anabar River lowlands (Arctic Siberia)

et al. 2013

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Abstract. The spatial and temporal variability of a low-centred polygon on the eastern floodplain area of the lower Anabar River (72.070° N, 113.921° E; northern Yakutia, Siberia) has been investigated using a multi-method approach. The present-day vegetation in each square metre was analysed, revealing a community of Larix, shrubby Betula, and Salix on the polygon rim, a dominance of Carex and Andromeda polifolia in the rim-to-pond transition zone, and a predominantly monospecific Scorpidium scorpioides coverage within the pond. The total organic carbon (TOC) content, TOC / TN (total nitrogen) ratio, grain size, vascular plant macrofossils, moss remains, diatoms, and pollen were analysed for two vertical sections and a sediment core from a transect across the polygon. Radiocarbon dating indicates that the formation of the polygon started at least 1500 yr ago; the general positions of the pond and rim have not changed since that time. Two types of pond vegetation were identified, indicating two contrasting development stages of the polygon. The first was a well-established moss association, dominated by submerged or floating Scorpidium scorpioides and/or Drepanocladus spp. and overgrown by epiphytic diatoms such as Tabellaria flocculosa and Eunotia taxa. This stage coincides temporally with a period in which the polygon was only drained by lateral subsurface water flow, as indicated by mixed grain sizes. A different moss association occurred during times of repeated river flooding (indicated by homogeneous medium-grained sand that probably accumulated during the annual spring snowmelt), characterized by an abundance of Meesia triquetra and a dominance of benthic diatoms (e.g. Navicula vulpina), indicative of a relatively high pH and a high tolerance of disturbance. A comparison of the local polygon vegetation (inferred from moss and macrofossil spectra) with the regional vegetation (inferred from pollen spectra) indicated that the moss association with Scorpidium scorpioides became established during relatively favourable climatic conditions, while the association dominated by Meesia triquetra occurred during periods of harsh climatic conditions. Our study revealed a strong riverine influence (in addition to climatic influences) on polygon development and the type of peat accumulated.

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Vegetation of Yakutia: Elements of Ecology and Plant Sociology

Cited by 22 publications

References 5 publications

Pollen-based quantitative land-cover reconstruction for northern Asia during the last 40 ka

Pollen-based quantitative land-cover reconstruction for northern Asia during the last 40 ka

Pollen-based quantitative land-cover reconstruction for northern Asia covering the last 40 ka cal BP

River flooding as a driver of polygon dynamics: modern vegetation data and a millennial peat record from the Anabar River lowlands (Arctic Siberia)

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