Reconstruction of the regional summer ground surface temperature in the permafrost region of Northeast China from 1587 to 2008

Abstract To extend the historical temperature record in the permafrost region of Northeast China, we reconstruct the regional ground surface temperature (GST) for the past four centuries based on a network of Dahurian larch (Larix gmelinii Rupr.) tree-ring width chronologies. Seven standard tree-rin...

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Bibliographic Details
Main Authors: Xianliang Zhang, Xueping Bai, Meiting Hou, Yongxing Chang, Zhenju Chen
Format: Article in Journal/Newspaper
Language:unknown
Subjects:
permafrost
Online Access:http://link.springer.com/10.1007/s10584-018-2212-4
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Summary:Abstract To extend the historical temperature record in the permafrost region of Northeast China, we reconstruct the regional ground surface temperature (GST) for the past four centuries based on a network of Dahurian larch (Larix gmelinii Rupr.) tree-ring width chronologies. Seven standard tree-ring chronologies, which correlate well with each other, are averaged to create a regional mean chronology. GST is the major limiting factor for tree growth in this region. The optimum range of GSTs is from 30 May to 26 August (summer GST), identified by combining the days on which tree growth was strongly influenced by the daily GST data. The summer GST was significantly correlated with the regional mean chronology (r = 0.704, p

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