本项目以新生代青藏高原隆升和全球气候变化为宏观背景，以云南梁河中新世植物化石为研究对象，拟开展精细的古植物分类学和定量化的古气候重建研究。叶结构特征和角质层微细构造相结合，对化石植物叶片进行准确鉴定，进而恢复植物群的古植被组成；对比古植被信息和现代植被资料，探讨研究区植物多样性的演化过程。利用共存分析法、叶缘分析法、气候-叶片多变量分析程序定量重建植物群的古气候参数；结合前人研究成果，揭示研究区的新近纪古气候变化趋势。在以上研究的基础上，探索植物演化对气候变化的适应与响应。

At the background of the uplift of Qinghai-Tibet Plateau and the global climate changes in the Cenozoic, this project will carry out a study of fossil plant taxonomy and quantitative paleoclimate reconstruction based on the plant fossils from the Miocene in Lianghe County, Yunnan Province. On the basis of the leaf architectures and cuticular features, the fossil leaves are identified accurately and the palaeovegetation composition can be recoveried. The evolution process of plant diversity in the study region will be discussed based on the contrast analysis of the vegetation data of fossil and modern floras. The paleoclimate parameters are quantitative reconstructed by the methods of coexistence approach (CA), leaf margin analysis (LMA) and climate leaf analysis multivariate program (CLAMP). Combining with the previous research findings, we will explore the trend of Neogene climate changes of Western Yunnan. Therefore, the adaptation and responses of the plant evolution to the climate changes can be identified based on the researches above.