Chen F.,Institute of Desert and Meteorology |
Chen F.,Key Laboratory of Tree ring Physical Chemic Research of China Meteorological Administration |
Chen F.,Key Laboratory of Tree ring Ecology of Uigur Autonomous Region |
Yuan Y.,Institute of Desert and Meteorology |
And 23 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2010
Using tree rings of Larix sibirica sampling from Hoboksar, we developped 21 tree-ring density and 63 tree-ring width series and then established maximum density (MXD) and annual ring width (TRW) chronologies. The detrending method of the regional curve standardization allowed us to be able to preserve inter-annual to multi-centennial scale variabilities. Having analyzed the characteristics of the chronologies and thier responding to climate factors, we found the MXD chronology correlates at 0.66 with the anomaly of maximum mean temperature in May August over the period of 1961 - 2007, which explained 43.5% of varivance in the reconstruction (F = 34.679, P < 0.0001). According the the reconstruction in Hoboksar region, the anomaly of maximum mean temperature over the 1795 - 2007 period was -0.08°C. It appeared during the 1795 - 1899 period at -0.15°C below to that in the 1900 - 2007 period. The temperature was increased from the 1880s to 1950s and indicated that maximum summer temperature since 1915 had been warmer than any periods since 1795.