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• 第三届中国树木年轮学术研讨会会议专栏 • 上一篇    下一篇

西大别山小林海黄山松树轮宽度的气候意义

彭剑峰**,李国栋,李玲玲   

  1. (河南大学资源环境研究所/环境与规划学院, 河南开封 475004)
  • 出版日期:2014-07-18 发布日期:2014-07-18

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

摘要:

基于树轮年代学研究方法,在鄂、豫、皖交界的西大别山北坡进行黄山松研究,建立了1915—2011年的树轮宽度标准年表(STD).结果表明: 年表中较高的平均敏感度表明树轮中含有较多的气候变化的高频信息;较高的一阶自相关系数表明树轮生长存在显著的前期生长滞后效应;高信噪比和样本解释总量暗示树轮中含有较多的环境信息.标准年表序列指数与1959—2011年间气象因子的相关分析表明,黄山松树轮宽度生长受生长季末(9—10月)温度、降水量和相对湿度的影响较大;与9—10月帕尔默干旱指数呈显著正相关. 9、10月的水热组合是影响小林海黄山松树轮生长的主要因子.

 

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.