Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2008

Идентификатор DOI: 10.1029/2007JG000473

Ключевые слова: air temperature, cellulose, climate conditions, comparative study, isotopic composition, Medieval, paleoclimate, paleotemperature, precipitation (climatology), reconstruction, tree ring, wood, Eurasia, Russian Federation, Sakha, Larix, Larix cajanderi

Аннотация: We related tree ring width (TRW) and isotopic composition (delta(13)C, delta(18)O) of wood and cellulose from four larch trees (Larix cajanderi Mayr.) to climate parameters. The material was sampled in northeastern Yakutia [70 degrees N-148 degrees E] for the recent (AD 1880-2004) and early Medieval (AD 900-1000) periods. During the recent period June, July, and August air temperatures were positively correlated with delta(13)C and delta(18)O of wood and cellulose, while July precipitation was negatively correlated. Furthermore, the vapor pressure deficit (VPD) of July and August was significantly correlated with delta(13)C of wood and cellulose, but VPD had almost no influence on delta(18)O. Comparative analyses between mean isotope values for the (AD 900-1000) and (AD 1880-2004) periods indicate similar ranges of climatic conditions, with the exception of the period AD 1950-2004. While isotopic ratios in cellulose are reliably related to climatic variables, during some periods those in whole wood showed even stronger relationships. Strong positive correlations between delta(18)O of cellulose and Greenland ice-core (GISP2) data were detected for the beginning of the Medieval period (r = 0.86; p

Журнал: JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES

Выпуск журнала: Vol. 113, Is. G2

Номера страниц: 02019

ISSN журнала: 01480227

Место издания: WASHINGTON

Издатель: AMER GEOPHYSICAL UNION

• Sidorova O.V. (Institute of Forest SB RAS)
• Naurzbaev M.M. (Institute of Forest SB RAS)
• Vaganov E.A. (Siberian Federal University)
• Siegwolf R.T.W. (Paul Scherrer Institute)
• Saurer M. (Paul Scherrer Institute)

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