吐鲁番盆地更新世古气候变化研究

目前,对吐鲁番盆地更新世气候变化的研究几乎是空白。本文通过对吐鲁番盆地早、中、晚更新世典型剖面的孢粉进行分析研究,得出了其在更新世的古气候变化概况。研究结果表明：（1）吐鲁番盆地在早更新世的温度较低。（2）吐鲁番盆地在中更新世出现过干冷气候,直到中更新世后期才有所缓和。（3）吐鲁番盆地在晚更新世有较大的气候波动。此外,文中还将所得结果与天山的冰期进行了对比分析。

Research on the Change of Turpan Basin Palaeoclimate of Pleistocene

The palaeoclimate analysis of the Turpan Basin is studied scarcely.The paper got the summary of climate change of Turpan Basin by a series of analysis of sporopollen of the typical sections of early Pleistocene,mid Pleistocene and late Pleistocene.The research conclusion shows that：（1） the temperature of Turpan Basin was lower at early Pleistocene;（2） the dry and cold climate appeared at mid Pleistocene,but the later it got warmer;（3） climatic undulation was comparatively large at late Pleistocene.Moreover,the conclusion was also compared with the glacial epoch of northern slope of Tianshan Mountains.