Lateglacial vegetation dynamics in the eastern Baltic region between 14,500 and 11,400calyrBP: A complete record since the Bølling (GI-1e) to the Holocene

Veski, Siim; Amon, Leeli; Heinsalu, Atko; Reitalu, Triin; Saarse, Leili; Stivriņš, Normunds; Vassiljev, Jüri

doi:10.1016/j.quascirev.2012.02.013

Cited by 70 publications

(78 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The vegetation cover was again replaced by tundra-steppe vegetation typical of the glacial period. During the warmest period of the GI-1a (Allerød) at 13,000-12,700 cal year BP, a pine forest mixed with deciduous trees of the species Betula pendula (silver birch) and Populus tremula (common aspen) developed in the eastern Baltic region (Veski et al 2012). During the Younger Dryas, the ice sheet still covered a considerable part of Fennoscandia, and sea level was 60-70 m lower than at present.…”

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 97%

“…The accumulation of silt and clay was replaced by organic-rich gyttja at 11,650 cal year BP also in eastern Latvia (Veski et al 2012).…”

Section: Early Holocene Oscillationsmentioning

confidence: 98%

“…The most recent and carefully investigated sediment sequences used for climate reconstruction stem from the following lakes: Svētiņu (Veski et al 2012), Kurjanovas (Heikkilä et al 2009), Busnieks (Grudzinska et al 2010;Ozola et al 2010), mires: Cena (Kalniņa 2007(Kalniņa , 2008, Eipurs, Dzelve (Kuške et al 2010a), Rozhu (Kuške et al 2010b) and from archaeological sites at Lubans (Kalniņa et al 2004), Sarnate (Kalniņa et al 2011) and Priedaine (Cerina et al 2010) (see Table 2.1). Some of the pollen records have been re-interpreted using the model REVEALS.…”

Section: Sources Of Palaeoclimatic Datamentioning

confidence: 99%

“…Summer air temperatures in ice-free regions reached 13-15°C as indicated by pollen of Hippophaë rhamnoides (sea buckthorn) and Typha latifolia (cat's tail). The latest results show that during the Bølling warming 14,500 cal year BP (GI-1e), a treeless tundra community comprising the shrubs Betula nana (dwarf birch), Dryas octopetala (mountain avens) and Salix polaris (polar willow) thrived in the eastern Baltic Sea area (Veski et al 2012). This warming was interrupted by a series of cold episodes: the Oldest Dryas (GS-2a), the Older Dryas (GI-1d) and the Younger Dryas (GS-1).…”

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 99%

“…The Younger Dryas (GS-1) cool phase strongly affected the floral composition of the vegetation. The pine forest collapsed within 100 years in eastern Latvia (Veski et al 2012). The landscape again became treeless tundra as indicated by pollen spectra dominated by Betula sect.…”

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 99%

See 4 more Smart Citations

Climate Change During the Holocene (Past 12,000 Years)

Борзенкова

Zorita

Borisova

et al. 2015

Regional Climate Studies

View full text Add to dashboard Cite

This chapter summarises the climatic and environmental information that can be inferred from proxy archives over the past 12,000 years. The proxy archives from continental and lake sediments include pollen, insect remnants and isotopic data. Over the Holocene, the Baltic Sea area underwent major changes due to two interrelated factors-melting of the Fennoscandian ice sheet (causing interplay between global sea-level rise due to the meltwater and regional isostatic rebound of the earth's crust causing a drop in relative sea level) and changes in the orbital configuration of the Earth (triggering the glacial to interglacial transition and affecting incoming solar radiation and so controlling the regional energy balance). The Holocene climate history showed three stages of natural climate oscillations in the Baltic Sea region: short-term cold episodes related to deglaciation during a stable positive temperature trend (11,000-8000 cal year BP); a warm and stable climate with air temperature 1.0-3.5°C above modern levels (8000-4500 cal year BP), a decreasing temperature trend; and increased climatic instability (last 5000-4500 years). The climatic variation during the Lateglacial and Holocene is reflected in the changing lake levels and vegetation, and in the formation of a complex hydrographical network that set the stage for the Medieval Warm Period and the Little Ice Age of the past millennium.

show abstract

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 97%

“…The accumulation of silt and clay was replaced by organic-rich gyttja at 11,650 cal year BP also in eastern Latvia (Veski et al 2012).…”

Section: Early Holocene Oscillationsmentioning

confidence: 98%

Section: Sources Of Palaeoclimatic Datamentioning

confidence: 99%

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 99%

Section: Climate At the Boundary Of The Younger Dryas/holocenementioning

confidence: 99%

See 3 more Smart Citations

Climate Change During the Holocene (Past 12,000 Years)

Борзенкова

Zorita

Borisova

et al. 2015

Regional Climate Studies

View full text Add to dashboard Cite

show abstract

Imprints of management history on hemiboreal forest ecosystems in the Baltic States

et al. 2018

View full text Add to dashboard Cite

In the Baltic States region, anthropogenic disturbances at different temporal and spatial scales mostly determine dynamics and development phases of forest ecosystems. We reviewed the state and condition of hemiboreal forests of the Baltic States region and analyzed species composition of recently established and permanent forest (PF). Agricultural deforestation and spontaneous or artificial conversion back to forest is a scenario leading to ecosystems designated as recent forest (RF, age up to two hundred years). Permanent forest (PF) was defined as areas with no records of agricultural activity during the last 200 yr, including mostly forests managed by traditional even‐aged (clear‐cut) silviculture and salvage after natural disturbances. We hypothesized that RF would have distinctive composition, with higher dominance by hardwoods (e.g., aspen and birch), compared to PF. Ordination revealed divergence in the RF stands; about half had the hypothesized composition distinct from PF, with a tight cluster of stands in the part of the ordination space with high hardwood dominance, while the remaining RF stands were scattered throughout the ordination space occupied by PF with highly variable species composition. Planting of conifers, variability in site quality, and variability in spatial proximity to PF with relatively natural ecosystem legacies likely explained the variable compositions of this latter group of RF. We positioned the observations of RF in a classic quantification of site type conditions (based on Estonian forest vegetation survey previously carried out by Lõhmus), which indicated that RF was more likely to occur on areas of higher soil fertility (in ordination space). Climatic and anthropogenic changes to RF create complex dynamic trends that are difficult to project into the future. Further research in tracing land use changes (using pollen analysis and documented evidence) should be utilized to refine the conceptual framework of ecosystem legacy and memory. Occurrence and frequency of deforestation and its characteristics as a novel disturbance regime are of particular interest.

show abstract

Evolution of a proglacial lake in the Izborsko‐Malskaya Valley, Russia, in the Late Glacial

Карпухина

Karevskaya

Borisova

et al. 2022

J Quaternary Science

View full text Add to dashboard Cite

A proglacial lake system formed during the Late Valdai (Weichselian) Ice Sheet recession on the East European Plain. Poor knowledge about chronology, levels and the drainage pathways of ice-dammed lakes does not allow us to fully evaluate their palaeogeographic significance. This study focuses on the Izborsko-Malskaya Valley where fingerprints of a glaciolacustrine environment were found. Based on litho-, biostratigraphic and geochronological data, it is estimated that the proglacial lake in the Izborsko-Malskaya Valley existed from ~14.3 ka cal. BP (the Vashinogorskaya Valley from ~14.9 ka (optically stimulated luminescence)) to 13.2 ka cal. BP. The maximum level was ~72 m a.s.l. (above sea level) and the minimum was ~53 m a.s.l. Sedimentation proceeded mostly in deepwater conditions. The ice-dammed lake in the Izborsko-Malskaya and nearest valleys could have been part of a huge lake on the Pskov lowland which formed after ~15.7 ka cal. BP. The lake level dropped rapidly when the proglacial Lake Pskovsko-Chudskoe (Peipsi) connected with the Baltic Ice Lake. A lacustrine regime was preserved only in the southern portion of the Izborsko-Malskaya Valley after drainage and still exists in the modern lakes. The presented approaches to the ice-dammed lake reconstruction could be useful for the verification of other lakes which existed on the East European Plain.

show abstract

Lateglacial vegetation dynamics in the eastern Baltic region between 14,500 and 11,400calyrBP: A complete record since the Bølling (GI-1e) to the Holocene

Cited by 70 publications

References 60 publications

Climate Change During the Holocene (Past 12,000 Years)

Climate Change During the Holocene (Past 12,000 Years)

Imprints of management history on hemiboreal forest ecosystems in the Baltic States

Evolution of a proglacial lake in the Izborsko‐Malskaya Valley, Russia, in the Late Glacial

Contact Info

Product

Resources

About