Библиографическое описание:ПОСТРОЕНИЕ НОВОЙ ДЛИТЕЛЬНОЙ 1394-ЛЕТНЕЙ ХРОНОЛОГИИ ДЛЯ ВОСТОЧНОЙ ТЫВЫ : научное издание / А. В. Тайник [и др.]. - Текст : непосредственный // Евразия в кайнозое. Стратиграфия, палеоэкология, культуры. - 2017. - № 6. - С. 79-83. - ISSN 2307-8243. Перевод заглавия: A NEW 1394-YEAR LONG TREE-RING CHRONOLOGY FOR EASTERN TUVA
Аннотация:За период с 2013 по 2016 г. была собрана коллекция образцов с живых деревьев и остатков стволов лиственницы сибирской (Larix sibirica Ldb) с верхней границы леса (2250 м над ур. м.). Это позволило построить новую длительную 1394- летнюю древесно-кольцевую хронологию (ДКХ) Kungur. Хронология хорошо согласуется с палеоклиматическими данными и отражает основные изменения климата в Северном полушарии за последнее тысячелетие: «средневековое потепление», «малый ледниковый период», «современное потепление». Расчет функции отклика между ДКХ Kungur и данными метеостанций показал, что хронология позволит реконструировать изменения июнь-июльской температуры и динамику верхней границы леса за последние 1200 лет.
The Altai-Sayan Mountains is one of the largest mountain systems of central Asia connecting the current-day territories of Russia, China, Mongolia and Kazakhstan. This region plays an important role in the formation of climatic processes that typically prevail over large parts of central and northern Asia. The combination of mainly undisturbed high-elevation conifer forests and the abundance of well-preserved dry-dead wood make this region particularly interesting from a dendroclimatological point of view. Recent years considering the processes occurring in the upper treeline have occupied an important place in studying the regional climate changes and concurrent ecosystem changes. This is, to a considerable extent, connected with the fact that the components of mountain ecosystems at the upper boundaries of their areas still are not considerably influenced by anthropogenic factors, while the variability in the increment of woody plants contains a strong climatic signal caused by the short vegetation season and temperature dependences, which allows one to consider tree rings to be a source of high resolution (year, season) paleoclimatic information. Existing net of tree-ring width chronologies (TRC chronologies)in the Altai-Sayan region are not uniformly distributed in space and time. In 2013-2016 we sampled the collection from living trees and remains of trunks of Larix sibirica from the upper treeline (2250 m) to expand the territorial coverage and improve the quality of TRC chronologies. It allowed building a new 1394-year long tree-ring chronology Kungur. The chronology well correlates with paleoclimatic data and reflects the main climate changes in the Northern Hemisphere during the last millennium. The calculation of the response function between the TRC chronologies Kungur and the weather station data showed that the chronology will allow to reconstruct the changes of June-July temperature and the dynamics of the upper treeline for the last 1200 years.
