新仙女木事件在云南地区气候代用指标中的反映  

作　　者：李玉 李嫚 

机构地区：[1]云南师范大学旅游与地理科学学院云南省高原地理过程与环境变化重点实验室,云南昆明650500 [2]昭通卫生职业学院,云南昭通657000

出　　处：《科技创新与应用》2020年第12期66-68,共3页Technology Innovation and Application

摘　　要：综合各学者对短时间尺度气候事件的研究成果,对新仙女木事件(YD)在云南地区各种代用指标中的反映进行分析。结果显示:新仙女木降温事件在云南主要集中于12.8-l0ka BP期间;YD事件在云南中西部和北部表现显著,在东部和南部无明显反映;同一湖区YD事件发生时间不一致,可能是受测年精度影响;各地区YD事件记录的起止时间各有早晚,且大部分地区YD事件结束时间较我国其他地区晚,存在滞后性。Based on the research achievements of many scholars on short-time-scale climate events, the reflection of the Younger Dryasevent(YD) event in various proxy indicators in Yunnan is analyzed. The results show that the Younger Dryaseventcooling event in Yunnan is mainly concentrated during the 12.8-l0 ka BP period;the YD event is significant in the central, western and northern parts of Yunnan, but not in the east and south;the occurrence time of the YD event in the same lake area is inconsistent, which may be affected by the dating accuracy;the starting and ending time of the YD event record in each region has its own time, and the end time of the YD event in most areas is later than that in other parts of China, and there is a lag.

关 键 词：新仙女木事件 西南地区 气候 花粉 石笋 

分 类 号：P542[天文地球—构造地质学]