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Environmental Development of Lower Priamurye in the Late Glacial Period.

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Title: Environmental Development of Lower Priamurye in the Late Glacial Period.
Authors: Bazarova, V. B.1 (AUTHOR) bazarova@tigdvo.ru, Klimin, M. A.2 (AUTHOR), Lyashchevskaya, M. S.1 (AUTHOR), Makarova, T. R.1 (AUTHOR)
Source: Russian Journal of Pacific Geology. Jun2026, Vol. 20 Issue 3, p284-298. 15p.
Subject Terms: *Climate change, *Peat bogs, *Global environmental change, *Permafrost, *Holocene Epoch, *Ecological zones, *Glaciation
Abstract: The study of the Gursky peat bog provided a continuous record of the environmental development in Lower Priamurye during the Late Glacial and the early Holocene. Three stadials (Early Dryas (DR I), Middle Dryas (DR II), and Younger Dryas (DR III)) and two interstadials (Bølling (BØ) and Allerød (AL)) were identified. Besides, short-term climatic events, such as the Susak Warm Episode (16.1–15.9 ka BP) and the Intra-Allerød Cold Period (IACP) or the Killarney/Gerzensee Oscillation (13.3–13.1 ka BP), were identified for the first time in the region. Quantitative climate parameters were reconstructed based on the present-day plant analogues. During the Younger Dryas, the average annual temperature in the study area was 7.5–9.0°C lower than today, and the average annual precipitation was approximately 50 mm less. During the Allerød interval, the average annual temperature was 0.5–1.0°C lower than today and the average annual precipitation was 100 mm less. During Dryas cooling (DR I, DR II, and DR III), elements of the Okhotsk flora penetrated to the latitude 50°–51° N with the boundaries of vegetation zones shifted southward by approximately 500–700 km. Permafrost was widespread in the Middle Amur Lowland, the dominant vegetation being birch and larch forest tundra with alder and thickets of frigid shrubs. Boreal forests occurred fragmentary on the mountain slopes. The populations of oak and elm survived the glaciations in small refugia to spread from them during the interstadial events (BØ and AL), as did dark coniferous and birch forests. About 11.8 ka BP a significant warming began, marking the beginning of the Holocene. In the Middle Amur Lowland, the zonal landscape became dominated by birch forests with alder, larch and a rare admixture of elm, oak, and hazel, with mixed forests of spruce and dwarf pine as the second most important landscape. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194200058
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PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Environmental Development of Lower Priamurye in the Late Glacial Period.
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  Data: <searchLink fieldCode="AR" term="%22Bazarova%2C+V%2E+B%2E%22">Bazarova, V. B.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> bazarova@tigdvo.ru</i><br /><searchLink fieldCode="AR" term="%22Klimin%2C+M%2E+A%2E%22">Klimin, M. A.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lyashchevskaya%2C+M%2E+S%2E%22">Lyashchevskaya, M. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Makarova%2C+T%2E+R%2E%22">Makarova, T. R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Russian+Journal+of+Pacific+Geology%22">Russian Journal of Pacific Geology</searchLink>. Jun2026, Vol. 20 Issue 3, p284-298. 15p.
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  Data: *<searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br />*<searchLink fieldCode="DE" term="%22Peat+bogs%22">Peat bogs</searchLink><br />*<searchLink fieldCode="DE" term="%22Global+environmental+change%22">Global environmental change</searchLink><br />*<searchLink fieldCode="DE" term="%22Permafrost%22">Permafrost</searchLink><br />*<searchLink fieldCode="DE" term="%22Holocene+Epoch%22">Holocene Epoch</searchLink><br />*<searchLink fieldCode="DE" term="%22Ecological+zones%22">Ecological zones</searchLink><br />*<searchLink fieldCode="DE" term="%22Glaciation%22">Glaciation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The study of the Gursky peat bog provided a continuous record of the environmental development in Lower Priamurye during the Late Glacial and the early Holocene. Three stadials (Early Dryas (DR I), Middle Dryas (DR II), and Younger Dryas (DR III)) and two interstadials (Bølling (BØ) and Allerød (AL)) were identified. Besides, short-term climatic events, such as the Susak Warm Episode (16.1–15.9 ka BP) and the Intra-Allerød Cold Period (IACP) or the Killarney/Gerzensee Oscillation (13.3–13.1 ka BP), were identified for the first time in the region. Quantitative climate parameters were reconstructed based on the present-day plant analogues. During the Younger Dryas, the average annual temperature in the study area was 7.5–9.0°C lower than today, and the average annual precipitation was approximately 50 mm less. During the Allerød interval, the average annual temperature was 0.5–1.0°C lower than today and the average annual precipitation was 100 mm less. During Dryas cooling (DR I, DR II, and DR III), elements of the Okhotsk flora penetrated to the latitude 50°–51° N with the boundaries of vegetation zones shifted southward by approximately 500–700 km. Permafrost was widespread in the Middle Amur Lowland, the dominant vegetation being birch and larch forest tundra with alder and thickets of frigid shrubs. Boreal forests occurred fragmentary on the mountain slopes. The populations of oak and elm survived the glaciations in small refugia to spread from them during the interstadial events (BØ and AL), as did dark coniferous and birch forests. About 11.8 ka BP a significant warming began, marking the beginning of the Holocene. In the Middle Amur Lowland, the zonal landscape became dominated by birch forests with alder, larch and a rare admixture of elm, oak, and hazel, with mixed forests of spruce and dwarf pine as the second most important landscape. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1134/S1819714026700077
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 284
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      – SubjectFull: Climate change
        Type: general
      – SubjectFull: Peat bogs
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      – SubjectFull: Global environmental change
        Type: general
      – SubjectFull: Permafrost
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      – SubjectFull: Holocene Epoch
        Type: general
      – SubjectFull: Ecological zones
        Type: general
      – SubjectFull: Glaciation
        Type: general
    Titles:
      – TitleFull: Environmental Development of Lower Priamurye in the Late Glacial Period.
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            NameFull: Bazarova, V. B.
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            NameFull: Klimin, M. A.
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            NameFull: Lyashchevskaya, M. S.
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            NameFull: Makarova, T. R.
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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            – TitleFull: Russian Journal of Pacific Geology
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