Variation of the hydrological regime of Bele-Shira closed basin in Southern Siberia and its reflection in the radial growth of Larix sibirica

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1007/s10113-017-1137-1

Ключевые слова: Closed basin, Dendrohydrology, Hydrological regime, L. sibirica, Radial growth, Southern Siberia

Аннотация: This study analyses dynamics of the hydrological regime of Bele-Shira closed basin and evaluates the potential for using radial growth of Siberian larch (Larix sibirica) for its assessment. We investigated the relationships between different characteristics of the water level variation of Lake Shira, precipitation amount and long-term regional chronologies developed from 56 living trees and 32 dead trees on three sites across this basin. Graphical and correlation analysis indicate that the interannual change (June minus previous June) of the water level of Lake Shira is strongly positively related to the annual sum of precipitation from July to June and the radial growth of larch. It was shown that this hydrological characteristic integrates the current dynamics of the regional precipitation and moisture regime as a whole of the Bele-Shira closed basin on interannual and decadal scales. The water level of Lake Shira fluctuates on a multi-year timescale in synchrony with the cumulative sum of the tree-ring chronology and also has strong positive long-term trend, probably driven by the continual groundwater inflow from neighboring Lake Itkul. Delayed relationships of precipitation and radial growth with the Lake Shira level change are interpreted with reference to a water balance model of the closed basin. Results offer the possibility of reconstructing interannual and decadal variation of the hydrological regime during the last few centuries through regression models using tree-ring chronologies or the dynamics of climatic variables recovered from them. © 2017 Springer-Verlag Berlin Heidelberg

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Номера страниц: 1-13

ISSN журнала: 14363798

Авторы

  • Babushkina E.A. (Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina St, Abakan, Russian Federation)
  • Belokopytova L.V. (Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina St, Abakan, Russian Federation)
  • Grachev A.M. (Institute of Geography of the Russian Academy of Sciences, 29 Staromonetniy Pereulok, Moscow, Russian Federation)
  • Meko D.M. (Laboratory of Tree-ring Research, The University of Arizona, 1215 E. Lowell Street, Box 210045, Tucson, AZ, United States)
  • Vaganov E.A. (Siberian Federal University, 79 Pr. Svobodniy, Krasnoyarsk, Russian Federation, V. N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, 50/28 Akademgorodok, Krasnoyarsk, Russian Federation)

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