树轮记录的新疆阿尔泰山1579-2009年初夏温度变化

doi:10.7522/j.issn.1000-694X.2015.00084

摘要/Abstract

摘要： 对新疆阿尔泰山中段森林上树线西伯利亚落叶松（Larix sibirica）树轮宽度标准化年表与区域气候要素进行相关分析，发现6月平均气温与树木径向生长存在显著相关关系（r=0.658，P<0.001）。据此重建的该地区1579-2009年间初夏温度变化曲线（解释方差为43.2%）表明，在过去431年，该地区经历了8个偏冷阶段和8个偏暖阶段，且对整个阿尔泰山有较好的空间代表性。功率谱分析表明，重建温度序列存在2.3a、2.4a的显著周期和3.9a、71.5a、95.3a的较显著周期。

关键词: 阿尔泰山, 树木年轮, 西伯利亚落叶松(Larix sibirica), 温度变化

Abstract: We developed a tree-ring width chronology (KLD) of Larix sibirica from the high elevation forests of the central Altay Mountains in northern Xinjiang, China. Based on the correlation between the KLD chronology and local meteorological data, we found tree-ring width had significant and positive correlations with mean June temperature (r=0.658, P<0.001). Regional early summer temperature history (1579-2009) was therefore reconstructed, which explained 43.2% of the instrumental variance for the period 1962-2009. During the past 431 years, the reconstruction documented eight warm periods and eight cold periods. According to the results of spatial correlation analysis, it revealed that the temperature reconstruction can represent the early summer temperature changes in Altay Mountains. Power spectrum analysis indicated the existence of some decadal (71.5 and 95.3 year) and interannual (2.3, 2.4 and 3.9 year) cycles.

Key words: Altay Mountains, tree-ring, Larix sibirica, temperature change

中图分类号:

P467

姜盛夏, 袁玉江, 魏文寿, 尚华明, 张同文, 张瑞波, 秦莉. 树轮记录的新疆阿尔泰山1579-2009年初夏温度变化[J]. 中国沙漠, 2016, 36(4): 1126-1132.

Jiang Shengxia, Yuan Yujiang, Wei Wenshou, Shang Huaming, Zhang Tongwen, Zhang Ruibo, Qin Li. Early Summer Temperature History in the Altay Mountains Recorded by Tree Rings during 1579-2009[J]. JOURNAL OF DESERT RESEARCH, 2016, 36(4): 1126-1132.

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