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Dendroclimatic potentials for the tree rings of Huangshan pine (Pinus taiwanensis) at Xiaolinhai in the western Dabie Mountains, China.

PENG Jian-feng, LI Guo-dong, LI Ling-ling   

  1. (Institute of Resource and Environment/College of Environment and Planning, Henan University, Kaifeng 475004, Henan, China)
  • Online:2014-07-18 Published:2014-07-18

Abstract: By using the dendrochronology research methods, this paper developed the 1915-2011 tree ringwidth standard chronology of the Huangshan pine (Pinus taiwanesis) at the north slope of western Dabie Mountains in the junction of Hubei, Henan and Anhui provinces. High mean sensitivity (MS) indicated that there was conspicuous highfrequency climate signals and high firstorder autocorrelation (AC) showed there were significant lageffects of tree previous growth. The higher signaltonoise ratio (SNR) and expressed population signal (EPS) indicated that the trees had high levels of common climate signals. Correlations between the tree ringwidth standard chronology and climatic factors (1959-2011) revealed the significant influences of temperature, precipitation and relative humidity on the tree width growth of Huangshan pine by the end of growing season (September and October). Significant positive correlations were found between the treering indices and the Palmer drought severity index (PDSI) of current September and October. In conclusion, the combination of water and heat of September and October is the major effect factor for the growth of Huangshan pine in western Dabie Mountains.