【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。更多还原

【Abstract】 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 warming trend in late twenty century.The series showed a high synchronous fluctuation with the glacier in centre Tianshan Mountains.The extreme in the series has great coherence with the locust events in local region and the large eruption events in Asia during the past 200 years.We considered that this chronology captured the environmental information about the advance and retreat of glacier and the volcanic eruption events to a certain degree.更多还原