Stomate and pollen content of lake surface sediments from across the tree line on the Taimyr Peninsula, Siberia

Clayden, Susan L.; Cwynar, Les C.; MacDonald, Glen M.

doi:10.1139/b96-125

Cited by 52 publications

(24 citation statements)

References 6 publications

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“…Nanae, Picea obovata, and Lycopodium is also noticeable for the upper part of PZ-IV, 14 C dated ca 9200 yr BP. Such pollen spectra are very similar to recent ones near the northern limit of the modern taiga along the Yenisei River valley (Clayden et al, 1996) and probably reflect a similar vegetation of larch-spruce taiga with shrub alder and dwarf birch.…”

Section: Article In Presssupporting

confidence: 78%

Vegetation and climate changes around the Lama Lake, Taymyr Peninsula, Russia during the Late Pleistocene and Holocene

Andreev

Tarasov

Климанов

et al. 2004

Quaternary International

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A continuous lacustrine sequence from the western part of Lama Lake (69 32 0 N, 90 12 0 E), complemented by a peat sequence from the lake catchment provides the first detailed environmental reconstruction for the Late Glacial and Holocene on the Taymyr Peninsula. Scarce steppe-like communities with Artemisia, Poaceae, and Cyperaceae dominated during the Late Glacial. Tundra-like communities with Betula nana, Dryas, and Salix grew on more mesic sites. There are distinct climatic signals, which may be correlated with the B^lling and Aller^d warming and Middle and Younger Dryas cooling. The Late Glacial/Preboreal transition, at about 10,000 14 C yr BP, was characterized by changes from predominantly open herb communities to shrub tundra ones. Larch forest might have been established as early as 9700-9600 14 C yr BP, whilst shrub alder came to the area ca 9500-9400 14 C yr BP, and spruce did not reach area before ca 9200 14 C yr BP. Spruce-larch forests with shrub alder and tree birch dominated the vegetation around the Lama Lake from ca 9000 14 C yr BP. Dwarf birch communities were also broadly distributed. The role of spruce in the forest gradually decreased after 4500 14 C yr BP. The vegetation cover in the Lama Lake area became similar to the modern larch-spruce forest ca 2500 14 C yr BP. A pollen-based biome reconstruction supports a quantitative interpretation of the pollen spectra. Climate reconstructions obtained with information-statistical and plan-functional-type methods show very similar trends in reconstructed July temperature since ca 12,300 14 C yr BP, while precipitation anomalies are less coherent, especially during the Late Glacial-Holocene transition. r

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Section: Article In Presssupporting

confidence: 78%

Vegetation and climate changes around the Lama Lake, Taymyr Peninsula, Russia during the Late Pleistocene and Holocene

Andreev

Tarasov

Климанов

et al. 2004

Quaternary International

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“…(Andreeva, 1982). Such spectra are almost identical to the surface spectra from northern limit of larch taiga in the Taymyr Peninsula (Clayden et al, 1996) and reflect similar vegetation.…”

Section: Kargin (Middle Weichselian) Interstadialsupporting

confidence: 56%

Late Pleistocene and Holocene Vegetation and Climate on the Taymyr Lowland, Northern Siberia

et al. 2002

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Pollen records from perennially frozen sequences provide vegetation and climate reconstruction for the last 48,000 14C years in the central part of Taymyr Peninsula. Open larch forest with Alnus fruticosa and Betula nana grew during the Kargin (Middle Weichselian) Interstade, ca. 48,000–25,000 14C yr B.P. The climate was generally warmer and wetter than today. Open steppe-like communities with Artemisia, Poaceae, Asteraceae, and herb tundralike communities with dwarf Betula and Salix dominated during the Sartan (Late Weichselian) Stade, ca. 24,000–10,300 14C yr B.P. The statistical information method used for climate reconstruction shows that the coldest climate was ca. 20,000–17,000 14C yr B.P. A warming (Allerød Interstade?) with mean July temperature ca. 1.5°C warmer than today occurred ca. 12,000 14C yr B.P. The following cooling with temperatures about 3°–4°C cooler than present and precipitation about 100 mm lower corresponds well with the Younger Dryas Stade. Tundra–steppe vegetation changed to Betula nana–Alnus fruticosa shrub tundra ca. 10,000 14C yr B.P. Larch appeared in the area ca. 9400 14C yr B.P. and disappeared after 2900 14C yr B.P. Cooling events ca. 10,500, 9600, and 8200 14C yr B.P. characterized the first half of the Holocene. A significant warming occurred ca. 8500 14C yr B.P., but the Holocene temperature maximum was at about 6000–4500 14C yr B.P. The vegetation cover approximated modern conditions ca. 2800 14C yr B.P. Late Holocene warming events occurred at ca. 3500, 2000, and 1000 14C yr B.P. A cooling (Little Ice Age?) took place between 500 and 200 14C yr ago.

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“…Likewise, the study of the relationship of modern pollen stomata to corresponding vegetation can also provide important reference relationships for reconstruction of the ancient vegetation communities. Similar research has been conducted in North America, Central Asia, and South America [5,15,[24][25][26][27][28]. This article reports the results of examinations of the relationships among vegetation, pollen and stomata, based on the study of pollen and stomata samples from different types of vegetation in Yunnan.…”

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confidence: 61%

Relationships between vegetation and stomata, and between vegetation and pollen surface soil in Yunnan, Southwest China

Shen

Wan

et al. 2013

Chin. Sci. Bull.

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Surface pollen and stomata of 61 samples collected in a study area ranging from tropical seasonal rainforest to oak forest (Quercus spinosa) in the Yulong Snow Mountain region in Yunnan, China, are used to distinguish vegetation communities. The results show that tropical seasonal rainforest (and mountain rainforest), south subtropical evergreen broad-leaved forest, and Quercus shrub are distinguished effectively from other vegetation types by analysis of surface pollen. The south subtropical evergreen broad-leaved forest, Pinus kesiya forest and evergreen broadleaf forest are distinguished effectively from other types of vegetation by pollen analysis. However, P. yunnanensis forest is not distinguished from other vegetation types, and P. armandii, P. densata forest and temperate deciduous conifer mixed forest are not distinguished. The over-representation of Pinus pollen is the main reason that these vegetation communities are not distinguished from each other. Conifer stomata analysis is an effective tool for identifying and distinguishing different types of coniferous forest, and this method performs well even with a small number of sampling points. Yunnan

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Stomate and pollen content of lake surface sediments from across the tree line on the Taimyr Peninsula, Siberia

Cited by 52 publications

References 6 publications

Vegetation and climate changes around the Lama Lake, Taymyr Peninsula, Russia during the Late Pleistocene and Holocene

Vegetation and climate changes around the Lama Lake, Taymyr Peninsula, Russia during the Late Pleistocene and Holocene

Late Pleistocene and Holocene Vegetation and Climate on the Taymyr Lowland, Northern Siberia

Relationships between vegetation and stomata, and between vegetation and pollen surface soil in Yunnan, Southwest China

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