通过黄土区湖泊沉积研究来恢复古气候、古环境 ,是对黄土区古气候、古环境研究的补充和检验。通过山西运城盆地硝池湖泊沉积物的多环境代用指标分析 ,结合史料记载 ,探讨了该地区 11ka BP以来古气候演化和湖面波动的历史。研究表明 ,该地区存在 YD(Younger Dryas)事件 ,进入全新世后气候有变湿的趋势 ,最高湿润度发生在 7.88～ 5 .15和 5 ka BP后 ,气候逐渐变干。湖面波动与气候波动相关 ,全新世早期湖面开始上升 ,湖泊扩张 ,5 ka BP后湖泊萎缩 ,盐类结晶析出 The restoration of paleoclimate and paleoenvironment through the study of lacustrine sediments in the loess area supplements and examines paleoclimate and paleoenvironmental research in the loess area. Based on the multi-environment proxy analysis of the sediments in the nitrate lake of Yuncheng basin in Shanxi Province and the historical records, the history of the paleoclimate evolution and the lake surface fluctuation since 11ka BP has been discussed. The study shows that there is the Younger Dryas (YD) event in this area, and the climate tends to become wetter after the Holocene. The maximum wetness occurs at 7.88-5.15 and 5 ka BP, and the climate gradually becomes dry. Fluctuations in the lake surface are related to the fluctuations of the climate. In the early Holocene, the lake started to rise and the lake expanded. After 5 ka BP, the lake shrank and the salt crystallized