Abstract

Newly developed millennial δ13C larch tree-ring chronology from Siberia allows reconstruction of summer (July) vapor pressure deficit (VPD) changes in a temperature-limited environment. VPD increased recently, but does not yet exceed the maximum values reconstructed during the Medieval Warm Anomaly. The most humid conditions in the Siberian North were recorded in the Early Medieval Period and during the Little Ice Age. Increasing VPD under elevated air temperature affects the hydrology of these sensitive ecosystems by greater evapotranspiration rates. Further VPD increases will significantly affect Siberian forests most likely leading to drought and forest mortality even under additional access of thawed permafrost water. Adaptation strategies are needed for Siberian forest ecosystems to protect them in a warming world.

Details

Title
Recent atmospheric drying in Siberia is not unprecedented over the last 1,500 years
Author
Churakova, Sidorova O, V 1 ; Corona, C 2 ; Fonti, M V 3 ; Guillet, S 4 ; Saurer, M 5 ; Siegwolf R T W 5 ; Stoffel, M 6 ; Vaganov, E A 7 

 Siberian Federal University, Krasnoyarsk, Russian Federation (GRID:grid.412592.9) (ISNI:0000 0001 0940 9855); University of Geneva, Institute for Environmental Sciences, Geneva, Switzerland (GRID:grid.8591.5) (ISNI:0000 0001 2322 4988) 
 Université Clermont-Auvergne (UCA), Geolab, UMR 6042 CNRS, Clermont-Ferrand, France (GRID:grid.494717.8) (ISNI:0000000115480420) 
 Siberian Federal University, Krasnoyarsk, Russian Federation (GRID:grid.412592.9) (ISNI:0000 0001 0940 9855); Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland (GRID:grid.419754.a) (ISNI:0000 0001 2259 5533) 
 University of Geneva, Institute for Environmental Sciences, Geneva, Switzerland (GRID:grid.8591.5) (ISNI:0000 0001 2322 4988) 
 Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland (GRID:grid.419754.a) (ISNI:0000 0001 2259 5533) 
 University of Geneva, Institute for Environmental Sciences, Geneva, Switzerland (GRID:grid.8591.5) (ISNI:0000 0001 2322 4988); University of Geneva, Dendrolab.Ch, Department of Earth Sciences, Geneva, Switzerland (GRID:grid.8591.5) (ISNI:0000 0001 2322 4988); University of Geneva, Department F.-A. Forel for Environmental and Aquatic Sciences, Geneva, Switzerland (GRID:grid.8591.5) (ISNI:0000 0001 2322 4988) 
 Siberian Federal University, Krasnoyarsk, Russian Federation (GRID:grid.412592.9) (ISNI:0000 0001 0940 9855); Federal Research Center “Krasnoyarsk Science Center SB RAS”, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russian Federation (GRID:grid.412592.9) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1898551584
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.