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在青藏高原综合科学考察中,选择其腹地系列剖面的沉积物记录进行地层气候学和同位素气候学的研究。沉积物记录的气候变化与同位素丰度变化的响应关系十分吻合,其时间尺度和分辨率也能够互为补偿,在较大范围内覆盖了32ka BP以来的古气候环境变化。更为有意义的是,清晰准确地检出新仙女本期气候冷干颤动事件,用同位素丰度变化拟合的降温幅度可达11C;并且识别出“仙女木期”(包括老—中—新仙女木事件)高分辩率气候变化时段,时间窗为13～9.8 ka BP,这在青藏高原及中国大陆的古气候分析中是首次。而且冰后期气候变化中,高原腹地的发展过程具有“早博”(或“早跳”)现象,对中国古气候变化和现代气候预测具有借鉴价值。
In the comprehensive scientific investigation of the Qinghai-Tibet Plateau, the sediment records of the series of sections in the hinterland are selected for the study of formation climatology and isotopic climatology. The response of climate change recorded by sediment to isotopic abundance change is in good agreement. The time scale and resolution can also compensate each other, covering a wide range of paleoclimate changes since 32ka BP. What is more significant is that it is clear and accurate to detect the climatic cold and dampness of the new fairy in this period, and the temperature drop with the variation of isotope abundance can reach 11C; and the “fairy wood” (including the old- New Fairy Wood event) high-resolution climate change period, the time window is 13 ~ 9.8 ka BP, which is the first time in the paleoclimate analysis of the Qinghai-Tibet Plateau and mainland China. In the later stage of ice climate, the development process of the plateau in the hinterland has the phenomenon of “Early Bo” (or “early jump”), which is of reference value to the ancient Chinese climate change and modern climate prediction.