Chinese pine tree ring width chronology and its relation to climate conditions in the Qianshan Mountains |
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| Authors: | Zhenju Chen Yu Sun Xingyuan He Wei Chen Xuemei Shao Huayu Zhang Zhongyu Wang Xiaoyu Liu |
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| Institution: | (1) Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China;(2) Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China;(3) Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China;(4) Administrative Committee of Qianshan Mountain Scenic Spot, Anshan, 114045, China |
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| Abstract: | Taking Chinese pine in Qianshan Mountains as a sample, the tree ring width chronology including Standard, Residual, and Arstan
chronologies was established. The results show that the tree ring width of Chinese pine is highly correlated with the temperatures
from May to July and from September to November. Statistically significant positive correlations were observed between tree
ring width and the extreme minimum temperatures in July and mean minimum temperatures in September. The chronology was significantly
or very significantly correlated with extreme minimum temperatures in December and the following January, with mean minimum
temperatures in January, with annual precipitation and with precipitation in April, May and the following December. The Chinese
pine responded strongly to the monthly/yearly water vapor pressure and relative humidity. Annual and largely monthly evaporation
in April–July had a negative effect on tree growth, and was particularly striking for evaporation in April–July. The narrow
tree rings recorded by the chronology demonstrated the 30 occasions of extreme drought since 1800. The growth of Chinese pine
in the Qianshan mountains were also affected by climate changes on a hemispheric and global scale. There were 11-, 23-and
50-year-common periodicities between the chronology and solar activity and 10-, 20-and 45-year-common periodicities between
the chronology and geomagnetic activity.
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Translated from Chinese Journal of Applied Ecology, 2007, 18(10): 2191–2201 译自: 应用生态学报] |
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| Keywords: | Qianshan mountains Chinese pine tree ring width chronology climate |
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