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黄土－古土壤序列的研究表明，我国东部地区第四纪气候演变的总规律是干冷与湿暖的交替。但是，气候的变化是一个复杂的过程，在不同的时间和地点，气候的干、湿和冷、暖变化可能会出现不同的组合。根据泥河湾盆地晚更新世湖泊沉积物中所含碳酸盐的氧碳同位素研究，认为在末次间冰期（据今１３～７万年），该区气候以干暖与湿冷的交替为主要特征。这一发现将有助于加深对我国东部第四纪气候变化规律的认识。
The study of loess-paleosol sequence shows that the general law of Quaternary climatic evolution in eastern China is the alternation of dry-cold and wet-warm. However, climate change is a complex process. Different combinations of dry, wet, cold and warm climate changes may occur at different times and places. According to the oxygen and carbon isotopic study of carbonate sediments in the Late Pleistocene Niuhe basin in the Nihe Basin, it is believed that in the last interglacial period (13 to 70,000 years now), the climate in this area is dominated by the alternation of dry-warm and wet-cold feature. This discovery will help to deepen our understanding of the law of the Quaternary climate change in eastern China.