A Quaternary Vegetation History of Northeastern Queensland from Pollen Analysis of ODP Site 820

AbstractThe pre-last glacial maximum paleolake sediments at Baumkirchen, western Austria, are well known in Alpine Quaternary stratigraphy as being the type locality of the Middle to Upper Würmian transition. Their location provides a rare opportunity to investigate the vegetation history of the interior of the Alps during the last glacial cycle. A recent renewed research effort involving new drilling revealed a 250-m-thick lacustrine sequence with an older, ca. Marine Oxygen Isotope Stage (MIS) 4 phase and a younger, mid- to late MIS 3 phase. Pollen analysis reveals generally poor preservation and very low pollen concentration due to very high sedimentation rates. On the basis of pollen percentages and influx rates, six pollen zones (PZ) were assigned. PZ1 and 2 correspond to the entire ca. MIS 4 section and are characterized by only scattered vegetation representing an extremely cold and dry climate. Two stadials and two interstadials were identified in the MIS 3 section. The interstadials are characterized by well-developed open vegetation with some stands of trees, with the upper PZ6 being better developed but still forest-free. On the basis of previous radiocarbon dating, this zone (PZ6) is correlated to Greenland Interstadial (GI) 7 and the lower interstadial (PZ4) tentatively to GI 8.

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Vegetation history of Western Russia (Upper Dnieper, Smolensk region): Climate and human impact on landscape in last two millennia

10.5194/egusphere-egu2020-14384 ◽

2020 ◽

Author(s):

Nikita Lavrenov ◽

Ekaterina Ershova ◽

Margarita Zhuravkova ◽

Nikolay Krenke

Keyword(s):

Human Impact ◽

Pollen Analysis ◽

Vegetation History ◽

Taxonomic Diversity ◽

Analysis Data ◽

History Of Vegetation ◽

Modern Analogue ◽

First Results ◽

History Of ◽

Indigenous Forest

Climate and vegetation history of Upper Dnieper region (Western Russia) is investigated poorly while archaeological studies provide evidences of human activities during last 3 millennia. Our study presents vegetation reconstruction based on pollen analysis of sediments extracted from two sites in Smolensk region. The first site is located in Katynka river bassin and pollen analysis of extracted buried soil, alluvium and peat sediments demonstrates vegetation dynamics in archaeologically rich area over 5 millennia. The second site is located in 50 km from to the west from Smolensk and in 15 km to east from the Russian-Belarus state border. The analysis of extracted peat sediments presents regional history of vegetation. The aim of our study is to compare data obtained from both sites and to estimate climate and human influence on vegetation during last two millennia when activities associated with agriculture changed Dnieper valley landscape significantly.The first results of pollen analysis data of the first site allow to register significant human impact on vegetation 2.0-0.8 ka BP. Before that period pollen of indigenous forest trees dominates in spectra while since 2.0 ka BP pollen compassion changes dramatically and pollen of Betula and Pinus is in majority in so-called &#8220;Gnezdovo soil&#8221; lay. Medieval lays of sapropel contains mostly pollen of Pinus with admixture of Betula and Alnus. Taxonomic diversity and presence of meadow herbs, weeds and cultivated taxa pollen increases significantly (up to 30%). Dynamics of pollen composition in specimens from the second site allows us to register slow processes of indigenous vegetation recovery over last 3 centuries approximately. Modern analogue technique applied on pollen data and analysis of historical data makes possible to separate impacts of climate and human on vegetation of the past and to reconstruct the climate of last two millennia.The study was funded by RFBR, project number 19-34-90172.

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Vegetation History of the Southern Tohoku District, Based on Pollen Analysis of Aranuma in the Shirataka Lakes, Yamagata Prefecture.

The Quaternary Research (Daiyonki-Kenkyu) ◽

10.4116/jaqua.41.375 ◽

2002 ◽

Vol 41 (5) ◽

pp. 375-387 ◽

Cited By ~ 5

Author(s):

Yoshimune Morita ◽

Hiroshi Yagi ◽

Takashi Inokuchi ◽

Tomoko Yamazaki

Keyword(s):

Pollen Analysis ◽

Vegetation History ◽

History Of

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The Holocene vegetation history of Northern Pirin Mountain, southwestern Bulgaria: pollen analysis and radiocarbon dating of a core from Lake Ribno Ban derishko

The Holocene ◽

10.1191/0959683602hl535rp ◽

2002 ◽

Vol 12 (2) ◽

pp. 201-210 ◽

Cited By ~ 42

Author(s):

Spassimir Tonkov ◽

Hristina Panovska ◽

Goran Possnert ◽

Elissaveta Bozilova

Keyword(s):

Pollen Analysis ◽

Radiocarbon Dating ◽

Vegetation History ◽

The Holocene ◽

History Of

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Holocene vegetation history in Romanian Subcarpathians

Quaternary Research ◽

10.1016/j.yqres.2009.05.002 ◽

2009 ◽

Vol 72 (2) ◽

pp. 164-173 ◽

Cited By ~ 29

Author(s):

Ioan Tantau ◽

Maurice Reille ◽

Jacques-Louis de Beaulieu ◽

Sorina Farcas ◽

Simon Brewer

Keyword(s):

Pollen Analysis ◽

Vegetation History ◽

Late Glacial ◽

Fast Response ◽

Rapid Expansion ◽

Glacial Period ◽

Climatic Warming ◽

Peat Core ◽

Late Glacial Period ◽

History Of

AbstractPollen analysis from a peat core 7.0 m in length, taken from a bog near Bisoca, in a mid-altitude area of the Buzăului Subcarpathian mountains, is used to reconstruct the postglacial vegetation history of the region. The vegetation record, which is supported by twelve 14C dates, starts at the end of the Late Glacial period. At the Late Glacial/Holocene transition, open vegetation was replaced by forest, suggesting a fast response to climatic warming. The Holocene began with the expansion of Betula, Pinus and Ulmus, followed, after 11,000 cal yr BP, by Fraxinus, Quercus, Tilia and Picea. The rapid expansion of these taxa may be due to their existence in the area during the Late Glacial period. At ca. 9200 cal yr BP, Corylus expanded, reaching a maximum after 7600 cal yr BP. The establishment of Carpinus occurred at ca. 7200 cal yr BP, with a maximum at ca. 5700 cal yr BP. Fagus pollen is regularly recorded after 7800 cal yr BP and became dominant at ca. 2000 cal yr BP. The first indications of human activities appear around 3800 cal yr BP.

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2. The late Quaternary vegetation history of Sweden

Acta Phytogeographica Suecica ◽

10.3170/2008-12-18513 ◽

2008 ◽

pp. 15-20

Keyword(s):

Vegetation History ◽

Late Quaternary ◽

History Of

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A LATE HOLOCENE VEGETATION HISTORY OF LOWLAND GUATEMALA: RECORDS FROM LAKE IZABAL, EASTERN GUATEMALA

10.1130/abs/2020am-358700 ◽

2020 ◽

Author(s):

Erdoo Mongol ◽

◽

Francisca E. Oboh-Ikuenobe ◽

Jonathan Obrist-Farner ◽

Alex Correa-Metrio

Keyword(s):

Late Holocene ◽

Vegetation History ◽

History Of

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The history of settlement and agrarian land use in a boreal forest in Värmland, Sweden, new evidence from pollen analysis

Vegetation History and Archaeobotany ◽

10.1007/s00334-021-00829-y ◽

2021 ◽

Author(s):

Sigrún Dögg Eddudóttir ◽

Eva Svensson ◽

Stefan Nilsson ◽

Anneli Ekblom ◽

Karl-Johan Lindholm ◽

...

Keyword(s):

Land Use ◽

Pollen Analysis ◽

Large Scale ◽

Pollen Grains ◽

Ice Age ◽

Valuable Insight ◽

Archaeological Survey ◽

History Of ◽

New Evidence ◽

Insight Into

AbstractShielings are the historically known form of transhumance in Scandinavia, where livestock were moved from the farmstead to sites in the outlands for summer grazing. Pollen analysis has provided a valuable insight into the history of shielings. This paper presents a vegetation reconstruction and archaeological survey from the shieling Kårebolssätern in northern Värmland, western Sweden, a renovated shieling that is still operating today. The first evidence of human activities in the area near Kårebolssätern are Hordeum- and Cannabis-type pollen grains occurring from ca. 100 bc. Further signs of human impact are charcoal and sporadic occurrences of apophyte pollen from ca. ad 250 and pollen indicating opening of the canopy ca. ad 570, probably a result of modification of the forest for grazing. A decrease in land use is seen between ad 1000 and 1250, possibly in response to a shift in emphasis towards large scale commodity production in the outlands. Emphasis on bloomery iron production and pitfall hunting may have caused a shift from agrarian shieling activity. The clearest changes in the pollen assemblage indicating grazing and cultivation occur from the mid-thirteenth century, coinciding with wetter climate at the beginning of the Little Ice Age. The earliest occurrences of anthropochores in the record predate those of other shieling sites in Sweden. The pollen analysis reveals evidence of land use that predates the results of the archaeological survey. The study highlights how pollen analysis can reveal vegetation changes where early archaeological remains are obscure.

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