RELATION BETWEEN POLLEN RATIOS AND CLIMATE IN EAST CHINA AND AN ATTEMPT OF PALEOCLIMATE RECONSTRUCTION

Zhuo Zheng, Huang Ci, D Ifremer

2002 · 14 citations · 0 references

Concepts

Abstract

The large-scale data set of dust pollen samples covers the tropical-temperate climate transition area of eastern China. The results show that some ratios of pollen taxa have close relation with latitude and likely with climate. The present study discovers an interesting relation between the ratio of Artemisia/Poaceae and the latitude. The R2 value of Arte/Poac for latitude is as high as 0.9579, and for the mean annual temperature 0.9162. The paper attempts to reconstruct the paleoclimate of LGM for a core in the East China Sea by means of regression equation. The estimated mean annual temperature at LGM was about 8℃ (6-10℃) lower than today and the vegetation zone shifted southward by about 8-10 latitude degrees.