青藏高原不同时段气候变化的研究综述

Review of Studies in Climate Change over the Tibetan Plateau

综述了近年来通过冰芯、树轮、湖泊沉积等记录对青藏高原不同时段气候变化研究取得的成果,并特别着重于末次间冰期以来青藏高原的气候变化特征。在末次间冰期,青藏高原气候变化剧烈,降温迅速升温缓慢;末次冰期温度变化与格陵兰冰芯记录具有较好一致性,同时也具有高原的独特性;新仙女木事件发生时间与欧洲和格陵兰冰芯的记录基本一致;全新世总体比较温暖;近2000年来温度变化在波动中逐渐上升;近代温度有加速升高的趋势。总体上青藏高原各种尺度上的气候变化要早于我国其它地区,变化的幅度也较大。

As the ＂third pole＂ of the world, the Tibetan Plateau has important effects on climate in its surrounding areas and the whole world. Achievements have been gained on climate change since the last inter-glacial period in recent decades from ice core, tree-ring, and lake sediment records over the Tibetan Plateau. In this paper, we reviewed these achievements, especially those in the special periods. During the last inter-glacial period, temperature dropped rapidly and rose slowly. The temperature record of the last glacial period is consistent with Greenland ice core records, also having its own trait over the Tibetan Plateau. Younger Dryas event agrees with the records from Europe and Greenland. It is warm generally in Holocene, and temperature has been rising in the last 2000 years and gone up rapidly in the last decades. Climate changes at different scales on the Tibetan Plateau occur earlier and the extent is greater than that in other parts of China.