本申请拟选取现代黄河三角洲地区晚更新世以来的钻孔岩心沉积物为研究载体,通过对沉积物的年代学和沉积学分析，建立现代黄河三角洲地区晚更新世以来沉积地层精细时间标尺;开展岩心孢粉学研究，划分孢粉组合序列，揭示研究区晚更新世以来的植被演化规律，识别植被变化反映的区域性气候突变事件，特别是氧同位素3期（MIS3）的古气候变化记录，探索全球气候变化的区域响应。

This application intends to select drill core of modern Yellow River delta area since late pleistocene sediments for the study target. Basing on the chronology and sedimentology analysis, we will establish the accurate time scale of sedimentary strata in the modern Yellow River delta area since late pleistocene. Speculating the study area vegetation composition by dividing the core pollen record pollen combination sequences, we try reveal vegetation evolution since late pleistocene in the study area and looking for changes in vegetation reflect the regional climate variations of events.Particular attention will be given to palaeoclimate changes since MIS3, and discuss the response from regional climate events to global palaeoclimate events.