末次冰消期以来中国湖泊沉积记录的古气候演化及其驱动机制研究

The Study on Paleoclimatic Evolution and Driving Mechanisms since the Last Deglaciation Recorded by Lacustrine Sediments in China

中文关键词:  末次冰消期  湖泊沉积  古气候演化  驱动机制  季风模式  西风模式

英文关键词::Last Deglaciation  Lacustrine sediment  Paleoclimatic evolution  Driving mechanism  Monsoon pattern  Westerlies pattern

中文摘要:

      末次冰消期是全球气候与环境出现较大变化的时段,其间发生了一系列气候突变事件,在全球不同地区以不同方式回应着这些事件的变化过程。综述了末次冰消期以来青藏高原高寒干旱区、西北干旱区、云贵高原湿润区以及东部平原地区的湖泊沉积记录的古气候演化特征,探讨了气候变化的驱动机制,并提出未来该研究领域亟待深入开展的工作,包括拓展高分辨率湖泊沉积记录的气候演化时间序列研究,提升学科交叉和与其他地质记录的对比研究,加强中国第四纪湖泊数据库和全球气候变化研究,以及加强水汽来源示踪研究。

英文摘要:

      :The Last Deglaciation is a period that global climate and environment altered largely. During the Last Deglaciation, a series of abrupt climate changes occurred in different ways and different regions of the world. A review of paleoclimatic evolution recorded by lacustrine sediments from the arid regions of high altitude and cold temperature on Qinghai-Tibetan Plateau, the arid regions of Northwestern China, the humid regions on Yunnan-Guizhou Plateau and the plains of Eastern China since Last Deglaciation were presented.The driving mechanism for climate changes is also discussed. The author proposes that future work should conducted to:1) enhancing the study of high-resolution time series of climatic evolution recorded by lacustrine sediments,2) promoting the comparative study of interdisciplinarity and other geologic records, 3) strengthening the study of the Quaternary lake database in China and global climate changes, and 4) strengthening the tracer study of vapor sources.