【摘要】 末次冰期终止事件（Termination I,简称TI）是发生在末次冰消期约14.7 ka B.P.北半球最显著的一次快速升温事件,其气候突变的全球响应及转型特征是末次冰消期研究的重点。基于中国东南地区福建西部仙云洞两支石笋（样品编号为XY11和XYⅢ-21）17个高精度²³⁰Th年龄和567个氧同位素数据,建立了12.67～16.10 ka B.P.时段内平均分辨率达十年际的东亚夏季风强度演变序列,捕捉到了Termination I转型缓变特征。仙云洞石笋记录揭示Termination I事件缓变特征持续时间达800 a,明显比也门（约13 a）以及中国西南地区（约35 a）和长江中下游地区（约200 a）石笋记录的转型时间长很多,存在显著的区域差异。仙云洞石笋记录的Termination I转型时段季风开始增强响应于北高纬气候,但仙云洞石笋记录的Termination I缓变特征指示其可能受到热带低纬西太平洋暖池水文循环过程的影响。更多还原

【Abstract】 The Termination I（TI） is the most significant abrupt warming event in the northern hemisphere during the last deglaciation of about 14.7 ka B.P., and its transitional characteristics and global response to climate change are the focus of the research. Based on 17 high-resolution ²³⁰Th ages and 567 oxygen isotope data from two stalagmites（XY11 and XYⅢ-21） in Xianyun cave of western Fujian, southeastern China, the East Asian summer monsoon intensity evolution sequence with an average resolution of ten years covering the period of 12.67-16.10 ka B.P. was established. It is characterized by slow transitional process over 800 a, which is much longer than that in Yemen（～13 a）, the southwestern China（～35 a） and the middle-lower reaches of Yangtze River, China（～200 a）, showing obvious regional differences. The onset of intensified monsoon mainly responses to the north high latitude climate during the Termination I inferred from stalagmite records in Xianyun cave. The slow transitional characteristic implies that the hydrology processes over the tropical low latitude West Pacific warm pool may exert significant impact on the monsoon climate.更多还原