基于GIS技术的中国新仙女木事件发生时间研究  

Study on the Occurrence Time of the Younger Dryas Event in China Based on GIS Technology

作　　者：张硕 于梦晴 张瑞[1] 勇心意 Zhang Shuo;Yu Mengqing;Zhang Rui;Yong Xinyi(School of Geography,Liaoning Normal University,Dalian,China)

机构地区：[1]辽宁师范大学地理科学学院,辽宁大连

出　　处：《科学技术创新》2025年第2期83-89,共7页Scientific and Technological Innovation

摘　　要：新仙女木事件是发生在末次冰消期的快速降温事件,是研究最广泛的全球规模的极端气候事件之一。近年来,随着高分辨率古气候重建记录涌现,YD事件时空差异性日益显著。认识YD事件在中国的发生时间,有助于我们更深入地理解古环境整体特征。本文利用已公开发表的中国高分辨率新仙女木事件古气候重建记录,基于GIS技术对YD事件在中国的发生时间进行了分析。研究结果表明该气候事件在中国广泛分布,虽然开始、结束和持续时间在空间分布上无明显规律,但是主要发生于12.7-11.7 kaBP。The Younger Dryas Event,a rapid cooling event that occurred during the last deglaciation,is one of the most widely studied extreme climate events around the world.In recent years,with the emergence of high-resolution paleoclimate reconstruction records,the spatio-temporal differences of YD events have become increasingly significant.Understanding the occurrence time of YD events in China helps us to understand the overall characteristics of the ancient environment more deeply.In this paper,the occurrence time of YD events in China is analyzed by using the published high resolution paleoclimatic reconstruction records of the Younger Dryas event in China based on GIS technology.The results show that the climate event is widely distributed in China,and although the start,end and duration of the event have no obvious spatial distribution,it mainly occurs in 12.7-11.7 kaBP.

关 键 词：新仙女木事件 气候突变 石笋 泥炭 

分 类 号：P532[天文地球—古生物学与地层学]