Multi-proxy records of paleoclimate variations over the past 25 ka in China

• 作 者: ZHOUWei-jian[1]LIUZhao[2]XIANFeng[3]CHENQing-min[2]
• 机 构: State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academ
• 出 处: “东亚欧环境变化过程-亚洲季风变化与高低纬气候相互作用”第八届国际研讨会
• 发表日期: 2011年期

　　Since the LGM, the maximum extent of ice sheet in the last glaciation, there existed a series of large amplitude climate events, such as the Heinrich, Younger Dryas and 8200 a cooling event, interbedded with the last deglaciation B(o)lling-Aller(o)d and Holocene Optimum warm events.Through collecting the related publications, it is possible for us to present the synthesis study on the multi-proxy records over the past 25 ka in China.It clearly shows that besides events mentioned above, there are recently reported LGM warming, Mystery interval in cave study.A ~4 ka cooling event is recorded in both the Southeast and Southwest monsoon proxies.Furthermore, we suggested different climatic variation patterns in the monsoon-arid China.The southwest monsoon significantly started strengthening from about 11~12 ka after Younger Dryas, while southeast monsoon was about 8~10 ka.This Geological evidence supports the modelling results.It is worth mentioning that both the winter and summer monsoon strengthened during LGM (18~20 ka) and how to understand it and the Mystery interval, more records needs to be digged out for further study.