Abstract Wetlands play an important role in the global environmental change，and phytolith analysis in surface soil of wetlands is a basis for reconstructing the palaeoenvironment in the Quaternary.In this paper，surface soil phytoliths were analyzed in six wetlands from Huanan to Hani in Changbai Shan area.The results show that the phytolith assemblages in all wetlands surface soil samples except for Shalan are similar.Elongate，crenate，rondel and point-shaped phytoliths are dominant，which reveals the cold climate.PCA and cluster analysis are used to find the environmental significance of the phytoliths assemblages in different wetlands surface soils.The results indicate that temperature is the chief factor to control the otherness of phytoliths assemblages in wetlands in Changbai Shan area，at the same time，the types and percentages of phytoliths are closely related to the plants，humidity and elevation in the sample sites.Combining difference analysis with the change trend analysis in phytolith dimension，we can find that the width and length of bicrenate，polycrenate and crenate sinuate as well as the length of elongate psilate，the length of ridge and the height in rondel hipped and width of the point-shaped phytoliths exist significant difference and increase with the temperature.In sum，the phytolith morphotypes in all the sites are similar，but differences in the warm index and the size of the phytoliths are obvious.The result reveals that the phytolith assemblages and the size are sensitive to temperature change.
About author: Guo Meie，born in 1987，is a master candidate of physical geography.E-mail: guome449@nenu.edu.cn. About the corresponding author Jie Dongmei，born in 1969，is an associate professor of Northeast Normal University.She is mainly engaged in Quaternary geology and environmental evolution.E-mail: jiedongmei@nenu.edu.cn.
Cite this article:
Guo Meie,Jie Dongmei,Ge Yong et al. Phytolith characteristics and their significance of environment in surface soils from wetlands of Changbai Shan area[J]. JOURNAL OF PALAEOGEOGRAPHY, 2012, 14(5): 639-650.
Guo Meie,Jie Dongmei,Ge Yong et al. Phytolith characteristics and their significance of environment in surface soils from wetlands of Changbai Shan area[J]. JOPC, 2012, 14(5): 639-650.
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