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依据M1孔孢粉组合特征及14C年龄数据，结合孢粉数理统计分析，重建了江汉平原沔阳地区一万多年来的古季风气候变迁序列．研究结果表明，该区气候经历了六个阶段的变化．6．7—4．4kaBP间．为水热配置最佳时期．夏季降水显著增多；3．9－12．7kaBP，气温有所下降，但有效湿度很高，为古云梦泽扩张时期，其湿度的增加既受锋面降水带的影响，同时与长江南移，河床迅速抬高有关．约6kaBP后，人类活动在本区就已存在，人与自然环境的关系由早期的依赖至适应再到改造的逐渐发展过程．
Based on the characteristics of M1 porphyrite assemblages and 14C age data, combined with the statistical analysis of spore-pollen mathods, the sequence of the ancient monsoon climatic changes in the Mianyang area of Jianghan Plain was reconstructed for more than 10,000 years. The results show that the climate in this area has undergone six stages of change. 6.7-4.4kaBP between rooms. The best time for water and heat configuration. Summer precipitation increased significantly; 3.9-12.7kaBP, the temperature decreased, but the effective humidity is high, the ancient Yunmengze expansion period, the increase of humidity not only by the frontal surface of the impact of the same time, The rapid rise of the riverbed. After about 6ka BP, human activities already exist in this area, and the relationship between man and the natural environment is gradually evolved from early dependence to adaptation to reconstruction.