Abstract:

According to the analysis on the phytolith of the swamp profile in Tumen River estuary, the phytolith assemblages can be divided into six zones, which are corresponding to the paleo-climate phases of “cold and dry-cool and wet-cold and dry-cool and wet-warm-moderate and humidity”. Comparison between the phytolith analysis results and the results from Na, K, Ba, Cu, Pb, Fe and Mn analysis of this profile shows that the phytolith is not as sensitive as elements such as Na, K and Fe on the humidity reflection, but it is more sensitive than the reflection of peat development to the humidity. Regional paleo-climate contrast indicates that phytolith paleo-climate process of the profile under study has a good response to the regional climate evolution and will play an active role in the global changes and regional responses research.

Key words: phytolith, paleoclimate changes, swamp sediments, Tumen River estuary