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Article Dans Une Revue Journal of Biogeography Année : 1998

Present-day and mid-Holocene biomes reconstructed from pollen and plant macrofossil data from the former Soviet Union and Mongolia

Pe Tarasov
  • Fonction : Auteur
T Webb
  • Fonction : Auteur
Aa Andreev
  • Fonction : Auteur
Nb Afanas'Eva
  • Fonction : Auteur
Na Berezina
  • Fonction : Auteur
Lg Bezusko
  • Fonction : Auteur
Ta Blyakharchuk
  • Fonction : Auteur
Ns Bolikhovskaya
  • Fonction : Auteur
Mm Chernavskaya
  • Fonction : Auteur
Gm Chernova
  • Fonction : Auteur
Ni Dorofeyuk
  • Fonction : Auteur
Vg Dirksen
  • Fonction : Auteur
Ga Elina
  • Fonction : Auteur
Lv Filimonova
  • Fonction : Auteur
Fz Glebov
  • Fonction : Auteur
Vs Gunova
  • Fonction : Auteur
Sp Harrison
  • Fonction : Auteur
Vi Khomutova
  • Fonction : Auteur
Ev Kvavadze
  • Fonction : Auteur
Im Osipova
  • Fonction : Auteur
Nk Panova
  • Fonction : Auteur
Ic Prentice
  • Fonction : Auteur
L Saarse
  • Fonction : Auteur
Dv Sevastyanov
  • Fonction : Auteur
Vs Volkova
  • Fonction : Auteur
Vp Zernitskaya
  • Fonction : Auteur

Résumé

Fossil pollen data supplemented by tree macrofossil records were used to reconstruct the vegetation of the Former Soviet Union and Mongolia at 6000 years. Pollen spectra were assigned to biomes using the plant-functional-type method developed by Prentice ct al. (1996). Surface pollen data and a modern vegetation map provided a test of the method. This is the first time such a broad-scale vegetation reconstruction for the greater part of northern Eurasia has been attempted with objective techniques. The new results confirm previous regional palaeoenvironmental studies of the mid-Holocene while providing a comprehensive synopsis and firmer conclusions. West of the Ural Mountains temperate deciduous forest extended both northward and southward from its modern range. The northern limits of cool mixed and cool conifer forests were also further north than present. Taiga was reduced in European Russia, but was extended into Yakutia where now there is cold deciduous forest. The northern limit of taiga was extended (as shown by increased Picea pollen percentages, and by tree macrofossil records north of the present-day forest limit) but tundra was still present in north-eastern Siberia. The boundary between forest and steppe in the continental interior did not shift substantially, and dry conditions similar to present existed in western Mongolia and north of the Aral Sea.

Dates et versions

hal-01457646 , version 1 (06-02-2017)

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Citer

Pe Tarasov, T Webb, Aa Andreev, Nb Afanas'Eva, Na Berezina, et al.. Present-day and mid-Holocene biomes reconstructed from pollen and plant macrofossil data from the former Soviet Union and Mongolia. Journal of Biogeography, 1998, 25 (6), pp.1029-1053. ⟨10.1046/j.1365-2699.1998.00236.x⟩. ⟨hal-01457646⟩
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