树轮记录的新疆阿尔泰山1579—2009年初夏温度变化  

Early Summer Temperature History in the Altay Mountains Recorded by Tree Rings during 1579-2009

作　　者：姜盛夏 袁玉江[2] 魏文寿[2] 尚华明[2] 张同文[2] 张瑞波[2] 秦莉[2] 

机构地区：[1]新疆大学资源与环境科学学院,新疆乌鲁木齐830046 [2]中国气象局乌鲁木齐沙漠气象研究所中国气象局树木年轮理化研究重点开放实验室/新疆树木年轮生态实验室,新疆乌鲁木齐830002

出　　处：《中国沙漠》2016年第4期1126-1132,共7页Journal of Desert Research

基　　金：国家自然科学基金项目(41275120;40975056);国家公益性行业(气象)科研专项(GYHY201206014);国家科技支撑计划项目(2012BAC23B01);新疆维吾尔自治区重点实验室开放基金项目(XJDX0909-2012-04)

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。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 peri- ods. 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.

关 键 词：阿尔泰山 树木年轮 西伯利亚落叶松(Larix sibirica) 温度变化 

分 类 号：P467[天文地球—大气科学及气象学]