新疆哈密八大石森林上限树轮记录的温度变化信息  

Temperature Variations Recorded in Tree-ring Width at Timberline Forest in Hami Badashi,Xinjiang

作　　者：徐国保[1] 刘晓宏[1] 陈拓[1] 安文玲[1] 侯书贵[1] 李忠勤[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,甘肃兰州730000

出　　处：《山地学报》2009年第4期402-410,共9页Mountain Research

基　　金：科技部国家重点基础研究发展计划‘我国冰冻圈动态过程及其对气候;水文和生态的影响机理与适应对策’(2007CB411506);科技部公益性行为(气象)科研专项(GYHY200706008)共同资助~~

摘　　要：本研究采集新疆哈密地区八大石西伯利亚落叶松森林上限树芯样本,建立标准宽度年表。通过树木年轮-气候响应分析,发现标准年表序列反映了该地生长季(5～9月)的月平均温度及月平均最低温度信息,且该序列与前人的研究结果对比具有较好的一致性。树轮宽度序列主要反映出了1885年之前以冷期为主,1885年之后以暖期为主,且暖期延续时间变长,20世纪后半期增温的趋势。该序列与天山冰川进退的时间较为一致,同时也发现该序列极值与当地蝗灾具有很好的对应,与亚洲近两百年来的大型火山喷发事件具有很好的一致性,由此可以推测该年表在一定程度上捕捉到了冰川进退、火山事件的环境信息。Based on the tree-ring cores collected of Larix sibirica from the timberline in Hami Badashi, Xinjiang of China, the standardized width chronology was developed. The tree growth was dominant by the growing seasonal （May-September） mean temperature and minimum temperature monthly by simple correlation analysis. Our tree- ring width chronology was with great coherence to previous studies. Before 1885, the climate was dominant by cool periods, and the occurred warm periods dominated after 1885 with the prolonged warm periods against the the war- ming trend in late twenty century. The series showed a high synchronous fluctuation with the glacier in centre Tians- ban Mountains. The extreme in the series has great coherence with the locust events in local region and the large e- ruption events in Asia during the past 200 years. We considered that this chronology captured the environmental in- formation about the advance and retreat of glacier and the volcanic eruption events to a certain degree.

关 键 词：哈密 树木年轮 标准年表 温度 

分 类 号：Q948[生物学—植物学]