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通过对江汉平原沔城Ｍ１孔湖泊沉积物进行沉积特征、粒度、１４Ｃ年代、孢粉分析，重建了晚冰期以来该地区古环境、古气候演化的过程和序列：晚冰期后期有一扩张期，气候温湿并出现湖泊相沉积；晚冰期末期气候温凉偏干、河流环境；全新世初期（１０—８．９ｋａＢＰ），气候转向温湿；全新世大暖期（８．９—３．５ｋａＢＰ），总体上气候温暖湿润，其中６．８—４．９ｋａＢＰ是最宜期，４．９—４．８ｋａＢＰ和４．４—４．２ｋａＢＰ为两次降温事件，４．８ｋａＢＰ积水湖盆开始形成，３．９—３．５ｋａＢＰ为云梦泽鼎盛期；全新世晚期（３．５—１．７ｋａＢＰ），气温较大暖期有所下降，其中３．５—２．５ｋａＢＰ温凉偏湿，２．５—１．７ｋａＢＰ较为温湿，湖泊较为稳定，１．７ｋａＢＰ开始，云梦泽萎缩，钻孔所在位置出露水面
Through the sedimentary characteristics, grain size, 14C and sporo-pollen analysis of sediments in the M1 hole in Tancheng, Tancheng, Jianghan Plain, the paleoenvironment and paleoclimate evolution process and sequence since the Late Glacial Period have been reconstructed: Temperature and humidity, and lacustrine facies sedimentation. In late Late Glacial, the climate was cool and dry, and the river environment. During the early Holocene (10-8.9 kaBP), the climate turned warm and wet. During the Holocene (8.9-3.5 ka BP) , The climate is warm and humid as a whole, of which 6.8-4.9kaBP is the most suitable period, 4.9-4.8kaBP and 4.4-4.2kaBP are two cooling events, , 3.9-3.5kaBP for the Yunmengze heyday; the late Holocene (3.5-1.7kaBP), the temperature was lower than the warm period, of which 3.5-2.5kaBP warm and humid, 2.5-1.7kaBP is more warm and humid, relatively stable lakes, 1.7kaBP began, Yunmengze shrinking, drilling Location exposed surface of the water