J Integr Plant Biol. ›› 1988, Vol. 30 ›› Issue (1): -.

• Research Articles •    

Pollen AnalysiS and Paleoenvironment Study of Late Pleistocene in Daganba, Guizhou Province

Han Hui-you and Yu Jin-biao   

Abstract: In this paper, the division of the two pollen zones is discussed based on the results of pollen and spores analysis and 14C dating in the Daganba area, Zhijin County, central Guizhou Province. Zone Ⅰ represents a forest of mixed evergreen-deciduous broad-leaved trees closed subtropic mountain and dominated by Fagus, Quercus, Cyclobalanopsis, Carpinus and Castanea (Castanopsis, Lithocarpus) together with Pinus, Tsuga and Abies till 23000 yr B.P. It stands for the Dali interstadial climate, cool and moist. Zone Ⅱ vegetation adopted dry climate. During the time from 23000 yr B. P. to the fullglacial period the forest cowered and the fern extended. The pioneer trees such as Pinus, Betula began to grow towards the end of the dry phase. The genus Fagus is of great importance in studing ecology and geography of the flora. The retirement and growth of Fagus forest reveals the paleoenvironment changes.

Key words: Pollen-spore, Paleoenvironment, Beech (Fagus)

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