晚更新世期间鄱阳湖北部地区，九江、湖口、彭泽一带发育风沙－黄土－湖沼相交互地层序列。本文通过对该序列５个露头剖面多环境代用指标分析，研究了该地区晚更新世环境变迁和季风变化过程。研究表明：约１４７—１２９．６ｋａＢＰ，以较强的冬季风控制的气候为主，季风降水很少，气候偏冷干；１２９．６—７６ｋａＢＰ，早期，夏季风逐渐增强，至１２０ｋａＢＰ后，夏季风进入强盛阶段，１０３ｋａＢＰ后，夏季风较弱，９７ｋａＢＰ后，夏季风又一次增强，这一时段内古气候阶段性非常清楚，早中期暖湿程度较高，后期较弱，在暖湿的背景上存在１１０—１０６、１０３—９２ｋａＢＰ等冷事件；７６—５５ｋａＢＰ，为强盛的冬季风时期，气候冷干；５５—２５ｋａＢＰ，夏季风又一次增强，气候温暖湿润，中间有冷波动；２５—１６ｋａＢＰ，气候变冷干，后期冬季风有所减弱；１６ｋａＢＰ后，夏季风明显增强，气候变温湿，１３．０ｋａＢＰ后，气候有变干的趋势 Late Pleistocene Poyang Lake in the northern region, Jiujiang, Hukou, Pengze area sandstorm - loess - lacustrine facies interactive stratigraphic sequence. Based on the multi-environment proxy analysis of five outcrop sections of the sequence, this paper studied the environmental changes of the Late Pleistocene and the process of monsoon change in the area. The results show that: about 147-129.6kaBP, the climate dominated by strong winter monsoon, few monsoon precipitation, cold climate; 129.6-76kaBP, the early summer monsoon gradually increased to 120kaBP, the summer After 103ka BP, the summer monsoon was weak. After 97 kaBP, the summer monsoon increased again. The paleoclimatic stage was very clear in this period. The warm and wet stage was higher in early and mid-term and weaker in the latter. In the warm and wet background There are 110-106,103-92kaBP and other cold events; 76-55kaBP, for the strong winter monsoon climate, dry climate; 55-25kaBP, the summer monsoon again enhanced, warm and humid climate, the middle of the cold fluctuations; 25-16kaBP , The climate becomes colder and the post-winter monsoon weakened. After 16 ka BP, the summer monsoon increased obviously, and the climate became warm and humid. After 13.0kaBP, the climate became dry