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以树轮宽度重建秦岭中段分水岭地区1-7月平均气温
引用本文:刘禹,刘娜,宋慧明,蔡秋芳,包光,王伟平.以树轮宽度重建秦岭中段分水岭地区1-7月平均气温[J].气候变化研究进展,2009,5(5):260-265.
作者姓名:刘禹  刘娜  宋慧明  蔡秋芳  包光  王伟平
作者单位:中国科学院地球环境研究所
基金项目:国家自然科学基金杰出青年基金,国家自然科学基金重大项目,国家科技部项目 
摘    要: 根据秦岭中段分水岭地区秦岭落叶松树轮宽度指标,建立了该地区1814-2003年的树轮标准化年表。分析表明,该地标准化年表与当年1-7月平均气温显著相关。在此基础上设计转换方程,利用多元回归技术重建了秦岭中段分水岭地区的1-7月平均气温,重建序列的方差解释量为41.2% (F=15.062, p<0.0001),重建序列显示在过去190 a中气温较低的时段主要有1814-1850年和1876-1889年;偏暖期主要有1851-1875年和1890-1933年;而1934-1990年这一时期气温变化幅度较小,气温相对比较稳定;1990年之后升温明显。

关 键 词:秦岭中段  分水岭  树轮宽度  温度重建
收稿时间:2009-2-16
修稿时间:2009-3-27  

Reconstructed Mean Air Temperature from January to July at the Divide Sampling Site in the Mid-Qinling Mountains with Tree-Ring Widths
Liu Yu,Liu Na,Song Huiming,Cai Qiufang,Bao Guang,Wang Weiping.Reconstructed Mean Air Temperature from January to July at the Divide Sampling Site in the Mid-Qinling Mountains with Tree-Ring Widths[J].Advances in Climate Change,2009,5(5):260-265.
Authors:Liu Yu  Liu Na  Song Huiming  Cai Qiufang  Bao Guang  Wang Weiping
Abstract:A tree-ring width chronology has been built from Larix chinensis at the divide sampling site in the mid-Qinling Mountains from 1814 to 2003. The calculation results show that standardization (STD) chronology was significantly correlated with the mean air temperature from January to July. The mean January-July temperature at the sampling site was reconstructed by using the multiple regression method, and the explained variance of the function was 41% (F=15.062, p<0.0001). Two cold periods in the past 190 years were found in 1814-1850, and 1876-1889, and two warm periods from 1851-1875, and 1890-1933, respectively. The reconstructed temperature was relatively stable from the early 1930s to 1990, but increased quickly after 1990.
Keywords:mid-Qinling Mountains  divide  tree-ring width  air temperature reconstruction
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