吉林辉南二龙湾玛珥湖12.0 ka B.P.以来孢粉记录与气候变化

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Pollen Record and Climate Changing Since 12.0 ka B.P. in Erlongwan Maar Lake, Jilin Province

LIU Yu-ying^1,2,LIU Jia-qi³,HAN Jing-tai³

1.College of Applied Technique, Jilin University, Changchun 130022,China;2.College of Earth Sciences, Jilin University, Changchun 130061,China;3.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029,China

Received:2008-06-26 Revised:1900-01-01 Online:2009-01-26 Published:2009-01-26
Contact: LIU Yu-ying

Abstract

Abstract: A vegetation-environment history has been reconstructed according to the pollen characteristics of Erlongwan Maar lake since the last 12.0 ka B.P.. During 11.76-9. 81 ka B.P., there is conifer/broad-leaved forest, and climate is cold and dry. Between 9. 81-4.11 ka B.P., the vegetation in this region is broad-leaved forest, which indict tepid and dry climate in first stage (9.81-8.86 ka B.P.) and warm, humid climate in late stage(8.86-4.11 ka B.P.). After 4.11 ka B.P.，there developed conifer/ broad-leaved forest again, and climate changed to cool gradually before 1.62 ka B.P.. After this, the climate in this region is changed into more cool and dry. The pollen records of Erlongwan Maar lake shows Younger Dryas event(11.56-10.21 ka B.P.) and 4.0 ka B.P. climate event stand out in the region.

Key words: pollen record, paleoclimate, Younger Dryas, Erlongwan Maar lake

CLC Number:

P534.63

LIU Yu-ying,LIU Jia-qi,HAN Jing-tai. Pollen Record and Climate Changing Since 12.0 ka B.P. in Erlongwan Maar Lake, Jilin Province[J].J4, 2009, 39(1): 93-0098.

References

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