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Corpus Systématique Végétale

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Paleoclimatic reconstructions for the south of Valdai Hills (European Russia) aspaleo-analogs of possible regional vegetation changes under global warming

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  • climate and vegetation changes
  • paleoclimatic reconstructions
  • Holocene
  • the last interglacial
  • boreal forest ecosystem
Nom du fichier dans la ressource
  • E Novenko 1
  • A Olchev 2
  • O Desherevskaya 3
  • I Zuganova 1
  • 1) Institute of Geography of RAS, Staromonetny Lane 29, Moscow 119017, Russia
  • 2) A N Severtsov Institute of Ecology and Evolution of RAS, Leninsky Prospekt 33, Moscow 119071, Russia
  • 3) Faculty of Geography, M V Lomonosov Moscow State University, Moscow 119991, Russia

The possible response of forest ecosystems of south taiga at the south of Valdai Hills onprojected future global warming was assessed using analysis of pollen, plant macrofossiland radiocarbon data from four profiles of buried organic sediments of the last interglacialand several cores from modern raised bogs and two small forest mires in theCentral Forest State Natural Biosphere Reserve (CFSNBR; Twer region, Russia).The future pattern of climatic conditions for the period up to 2100 was derivedusing the data of A2, B1 and A1B emission scenarios calculated by the globalclimatic model ECHAM5-MPIOM (Roeckner E et al 2003 The Atmospheric GeneralCirculation Model ECHAM 5. PART I: Model Description, Report 349 (Hamburg:Max-Planck Institute for Meteorology) p 127). The paleoclimatic reconstructionsshowed that the optimum of the Holocene (the Late Atlantic period, 45004800 14CyrBP) and the optimal phases of the last interglacial (Mikulino, Eemian, 130000115000yr BP)can be considered as possible analogs for projected climatic conditions of themiddle and the end of the 21st century, respectively. The climate of the CFSNBRduring the Holocene climatic optimum was characterized by higher winter (about3C higher than at present) and summer temperatures (about1C higher than present values). Precipitation was close to present values (about 600800mmyr1). Vegetation was represented by mixed coniferous and broad-leaved forest. Inthe warmest phases of the last interglacial the winter temperature was 58C higher than present values. The summer temperatures were also about 24C higher. Broad-leaved and hornbeam trees were the dominant tree species in vegetationcover.

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  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Public Health, Environmental and Occupational Health
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - General Environmental Science
  • 1 - Physical Sciences ; 2 - Energy ; 3 - Renewable Energy, Sustainability and the Environment
Catégories WoS
  • 1 - science ; 2 - meteorology & atmospheric sciences
  • 1 - science ; 2 - environmental sciences
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Environmental Research Letters

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